2020-04-12 Tracking News

Contents on 12 April '20

IAU Minor Planet Center
- NEOCP Activity -- 29 listings
- New MPECs -- five MPECs
Observers -- 108 observers
Impact Risk Monitoring -- three objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1116 risk-listed objects, 94 have had news in the last 31 days. Updated at 1642 UTC on 12 April.
Earth's Busy Neighborhood traffic page
Ephemerides for risk-listed objects & close passers
News archive (old) & news image catalog (discontinued)
Object Links - mainly for radar targets & close passers (mostly discontinued)
Observing Campaigns (old)

The latest A/CC news is available via framed access, RSS news feed, or redirection.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity on 12 April '20

The MPC's NEO Confirmation Page has 29 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 29 objects listed. Of these, sixteen were "one nighters." So far The Tracking News has counted a total of 33 listings on the NEOCP today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs on 12 April '20

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-G90 time-stamped "03:14 UT" - 2020 GJ2 - see below
MPEC 2020-G91 time-stamped "05:46 UT" - Observations and Orbits of Comets and A/ Objects - see below
MPEC 2020-G92 time-stamped "12:01 UT" - Daily Orbit Update - see below
MPEC 2020-G93 time-stamped "22:16 UT" - 2020 GK2 - see below
MPEC 2020-G94 time-stamped "23:24 UT" - Comet C/2020 F8 (SWAN)

MPEC 2020-G94 - "23:24 UT" - Comet C/2020 F8 (SWAN)

CK20F080 C/2020 F8 (SWAN) (i=110.7°, q=0.430 AU, Q=178980.445 AU, TP=2020 May 27.59223 TT) from Auger Obs. (April 9.34p1, 10.39-42p8, 11.36p1, 11.41p3 & 12.37-42p5), roving observer (April 9.35p1), Perth Obs. (April 10.87-89p8), El Catalejo Obs. (April 11.35-37p4), Cruz del Sur Obs. (April 11.36-40p4), Telescope Live (April 11.40p3), Gisborne Obs. (April 11.65-72p23), Heaven's Mirror Obs. (April 11.78-80p3), Swan Hill Obs. (April 11.78-79p4), Nirmal Paul via iTelescope Obs. Siding Spring (April 12.76p2), iTelescope Obs. Siding Spring (April 12.78-79p7), Marian Urbanik via iTelescope Obs. Siding Spring (April 12.79p3), Ernesto Guido via iTelescope Obs. Siding Spring (April 12.79-81p3), LCO Siding Spring A (April 12.79-80p3), and Hidetaka Sato via iTelescope Obs. Siding Spring (April 12.80-81p3)

MPEC 2020-G93 - "22:16 UT" - 2020 GK2

K20G02K 2020 GK2 (small asteroid, H=22.5 ~107m) was picked up at 0955 UT on 12 April by Pan-STARRS 1 (PS1), observing it at April 11.41-42p2 and 12.41-45p4. This detection was confirmed by Pan-STARRS 2 (PS2) (April 4.43-46p3), Schwarzschild Obs. (April 12.84p3), and Visnjan Obs. (April 12.87-89p4).

<< DOU on 12 April '20 >> MPEC 2020-G92 - "12:01 UT" - Daily Orbit Update

Observations of risk-listed objects
K20G02H 2020 GH2 (small asteroid, arc=1 day, H=26.5 ~17m, close passer) from Clixby Obs. (April 11.92-93p3), Visnjan Obs. (April 11.93-94p6), and Great Shefford Obs. (April 11.94-95p3)
K20G01K 2020 GK1 (small asteroid, arc=9 days, H=25.1 ~32m, close passer) from Schwarzschild Obs. (April 11.94-96p4)
K20F06V 2020 FV6 (small asteroid, Q=4.542 AU, arc=14 days, H=23.0 ~85m) from KLENOT (April 11.89p7), Schwarzschild Obs. (April 11.99p3), and Dettelbach Vineyard Obs. (April 12.01-02p3)
Observations of recently (no longer) risk-listed objects
K20F06M 2020 FM6 (almost small, arc=17 days, H=21.8 ~148m) from KLENOT (April 11.89p7), Dettelbach Vineyard Obs. (April 12.03-04p3), and Schwarzschild Obs. (April 12.03p3)
Observations of close-passing objects
K20G02F 2020 GF2 (arc=2 days, H=26.0 ~21m) from QOS Obs. (April 10.88p3 & 11.81p4), Schwarzschild Obs. (April 11.09p3), Gisborne Obs. (April 11.44-45p3), Oberfrauendorf Obs. (April 11.80-81p8), KLENOT (April 11.82-83p10), Peschiera del Garda Obs. (April 11.94-96p8), Nonndorf Obs. (April 11.99-00p6), Dettelbach Vineyard Obs. (April 11.99p3), Great Shefford Obs. (April 11.99-01p6), and Muensterschwarzach Obs. (April 12.01p5)
K20G02A 2020 GA2 (i=42.8°, arc=3 days, H=21.2 ~195m) from ROASTERR-1 (April 10.94-95p3), KLENOT (April 11.90p8), QOS Obs. (April 11.90p6), Peschiera del Garda Obs. (April 11.97p6), Schwarzschild Obs. (April 11.98p3), Muensterschwarzach Obs. (April 11.99-00p4), Great Shefford Obs. (April 12.01-02p6), Dettelbach Vineyard Obs. (April 12.05p3), and Steward Obs. Mt. Lemmon Station (April 12.32-33p4)
K20G01Y 2020 GY1 (arc=6 days, H=26.6 ~16m) from Schwarzschild Obs. (April 12.02p3)
K20G01U 2020 GU1 (arc=9 days, H=27.2 ~12m, NHATS target) from Schwarzschild Obs. (April 11.92p3 & 12.09p4)
K20G00B 2020 GB (arc=12 days, H=25.7 ~25m) from Schwarzschild Obs. (April 2.79p3) and Squirrel Valley Obs. (April 3.03-04p3)
c8945 388945 2008 TZ3 from Castelmartini Obs. (April 11.08p3) and the Catalina Sky Survey (CSS) (April 11.38-40p4)
Observation campaigns (NHATS targets, radar support)
K20G01J 2020 GJ1 (arc=9 days, H=26.2 ~19m, NHATS) from Astronomical Research Obs. Westfield (April 11.14-15p3 at V=21.8-22.2)
K20G01A 2020 GA1 (arc=10 days, H=24.8 ~37m, NHATS) from Schwarzschild Obs. (April 11.92-93p4)
K20F03D 2020 FD3 (arc=22 days, H=23.5 ~68m, NHATS) from Schwarzschild Obs. (April 12.04p4)
a3599 363599 2004 FG11 (radar) from ATLAS Mauna Loa (April 11.45p1 & 11.59p2)
J0166 190166 2005 UP156 (radar) from CSS (April 12.28-30p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20G02J 2020 GJ2 (Q=4.644 AU, arc=20 days, H=24.7 ~39m) from Andrushivka Obs. (April 11.85p4) and Schwarzschild Obs. (April 12.08p5)
K20G02G 2020 GG2 (arc=2 days, H=24.3 ~47m) from KLENOT (April 11.92p2)
K20G01P 2020 GP1 (arc=9 days, H=23.6 ~65m) from Schwarzschild Obs. (April 11.96p3)
K20G01M 2020 GM1 (q=0.346 AU, arc=9 days, H=23.7 ~62m) from ARO Westfield (April 10.34p5) and Schwarzschild Obs. (April 11.98p3 & 12.13p2)
K20F05X 2020 FX5 (arc=17 days, H=23.9 ~56m) from KLENOT (April 11.88p4)
K20F03A 2020 FA3 (arc=21 days, H=23.1 ~81m) from Dettelbach Vineyard Obs. (April 11.89-91p3)
K20F02O 2020 FO2 (arc=78 days, H=22.4 ~112m) from Lumezzane Obs. (April 10.87p2), ARO Westfield (April 11.10p4), CSS (April 11.32-34p4), KLENOT (April 11.85p6), and Dettelbach Vineyard Obs. (April 11.92-93p3)
K17U44Z 2017 UZ44 (arc=2 opp, H=22.1 ~129m) from Schwarzschild Obs. (April 11.87p3)
K20G01X 2020 GX1 (arc=8 days, H=21.9 ~141m) from Schwarzschild Obs. (April 11.97p4 & 12.11-12p4)
K20F07A 2020 FA7 (arc=27 days, H=22.0 ~135m) from Lumezzane Obs. (April 10.81-82p3), CSS (April 11.26-27p4), Dettelbach Vineyard Obs. (April 11.84-85p3), and Peschiera del Garda Obs. (April 11.86-89p3)
K20F04X 2020 FX4 (arc=161 days, H=21.8 ~148m) from ARO Westfield (April 10.19p3) and the Mt. Lemmon Survey (MLS) (April 11.29-30p4)
Observations of other objects
K20G02E 2020 GE2 (Q=4.234 AU, arc=20 days, H=20.9 ~224m) from Schwarzschild Obs. (April 11.87-88p3 & 12.08-09p3)
K20G02D 2020 GD2 (arc=162 days, H=20.9 ~224m) from Iota Scorpii Obs. (April 10.87-90p4), ATLAS Mauna Loa (April 11.52-54p4), Oberfrauendorf Obs. (April 11.85-87p8), KLENOT (April 11.90p7), Peschiera del Garda Obs. (April 11.98-99p4), and Dettelbach Vineyard Obs. (April 12.06-08p3)
K20A02Z 2020 AZ2 (arc=96 days, H=21.3 ~186m) from PS2 (April 11.39-43p3)
K19Y07G 2019 YG7 (Q=4.977 AU, arc=96 days, H=18.5 ~676m) from SATINO-1 (Feb. 25.77-80p2)
K19X01G 2019 XG1 (Q=4.163 AU, arc=2 opp, H=19.2 ~490m) from Castelmartini Obs. (April 10.98p3), CSS (April 11.32-33p4), and Wishing Star Obs. (April 12.09p3)
K19W06B 2019 WB6 (arc=138 days, H=20.6 ~257m) from PS1 (April 11.41-45p3)
K19S10N 2019 SN10 (arc=224 days, H=21.3 ~186m) from PS1 (April 11.29-32p4)
K19N36N 2019 NN36 (arc=4 opp, H=19.7 ~389m) from MLS (April 11.16-18p4)
K17G04K 2017 GK4 (arc=3 opp, H=21.6 ~162m) from PS2 (April 12.30-31p2)
K17F90E 2017 FE90 (arc=3 opp, H=19.6 ~407m) from PS2 (April 11.40-42p3), Schwarzschild Obs. (April 11.92p3), and CSS (April 12.30-32p4)
K16EF7E 2016 EE157 (arc=3 opp, H=20.8 ~234m) from Schwarzschild Obs. (April 11.99p3)
K16EF6E 2016 EE156 (Q=4.660 AU, arc=3 opp, H=17.9 ~891m) from Schwarzschild Obs. (April 12.00-01p4)
K15FB8T 2015 FT118 (arc=3 opp, H=20.4 ~282m) from Schwarzschild Obs. (April 11.99p3)
K13G07Y 2013 GY7 (arc=3 opp, H=20.4 ~282m) from CSS (April 11.34-35p3)
K13A27O 2013 AO27 (q=0.292 AU, Q=4.531 AU, arc=2 opp, H=19.9 ~355m) from Schwarzschild Obs. (April 12.04-05p4)
K11F02Z 2011 FZ2 (Q=4.750 AU, arc=4 opp, H=17.4 ~1.12 km) from Castelmartini Obs. (April 11.14p3)
K11E40P 2011 EP40 (arc=4 opp, H=21.1 ~204m) from MLS (April 11.22-24p4 at G=21.0-22.1)
K10X11D 2010 XD11 (q=0.326 AU, Q=4.098 AU, arc=4 opp, H=17.9 ~891m) from Lumezzane Obs. (April 9.84p3), ROASTERR-1 (April 10.97-99p2), MLS (April 11.22-24p4), and ATLAS Mauna Loa (April 11.31-33p4)
K09A16H 2009 AH16 (arc=8 opp, H=17.7 ~977m) from MLS (April 11.20-22p4)
K08F00G 2008 FG (i=39.4°, arc=3 opp, H=19.6 ~407m) from Schwarzschild Obs. (April 11.93-94p3) and PS1 (April 12.28-32p3)
K01G02S 2001 GS2 (arc=3 opp, H=20.5 ~269m) from Purple Mtn. Obs. Xuyi Station (April 11.64-67p3), Luscherz Obs. (April 11.85-86p3), Saarbruecken Rastpfuhl Obs. (April 11.92-93p2), and CSS (April 12.32-34p4)
r9940 539940 2017 HW1 from ATLAS Mauna Loa (April 11.50-52p7) and Saarbruecken Rastpfuhl Obs. (April 11.95p2)
p1523 511523 2014 QS439 from MLS (April 11.16-17p4)
n4880 494880 2008 SQ7 from Castelmartini Obs. (April 11.05-06p3) and CSS (April 11.38-40p4)
m3878 483878 2005 YS165 from MLS (April 11.38-39p4)
m2244 482244 2011 HR from MLS (April 11.28-30p4)
l7524 477524 2010 EH43 from CSS (April 11.20-21p2)
i8818 448818 2011 UU20 from Castelmartini Obs. (April 10.91-92p3)
h6324 436324 2010 GZ6 from Castelmartini Obs. (April 11.08-09p3)
g5450 425450 2010 EV45 from CSS (April 11.32-33p3)
f3989 413989 2007 EL88 from Castelmartini Obs. (April 10.93p1) and QOS Obs. (April 11.82p1)
e9836 409836 2006 QY110 from MLS (April 11.12-13p4)
e2267 402267 2005 QE166 from PS1 (April 12.29-31p3)
d1033 391033 2005 TR15 from PS1 (April 12.29-31p3)
c8838 388838 2008 EZ5 from Castelmartini Obs. (April 10.95p3) and CSS (April 11.26-27p4)
b3428 373428 1999 TC5 from Xuyi Sta. (April 9.63-65p2), ROASTERR-1 (April 10.87-88p3 & 11.87-88p3), Lumezzane Obs. (April 10.90-91p4), and Castelmartini Obs. (April 11.01p3)
X3555 333555 2005 VY17 from ATLAS Mauna Loa (April 11.48-50p4) and Crni Vrh Obs. (April 11.90-94p4)
V8050 318050 2004 FC32 from Castelmartini Obs. (April 11.06-07p3)
V5098 315098 2007 EX from Woogaroo Obs. (April 12.39-43p3)
R6732 276732 2004 EV9 from CSS (April 11.21-23p4)
R6274 276274 2002 SS41 from Castelmartini Obs. (April 11.04-05p3) and CSS (April 11.36-37p3)
R4138 274138 2008 FU6 from CSS (April 12.24-25p4) and PS1 (April 12.28-32p4)
P2793 252793 2002 FW5 from Lumezzane Obs. (April 10.84p3), PS1 (April 11.36-38p3), and ATLAS Mauna Loa (April 11.38-40p4)
P0620 250620 2005 GE59 from Xuyi Sta. (April 9.48-51p3)
O8926 248926 2006 WZ2 from CSS (April 11.19-21p3)
M8368 228368 2000 WK10 from Lumezzane Obs. (April 9.81p3)
I9700 189700 2001 TA45 from PS2 (April 12.30-31p2)
I3548 183548 2003 HU42 from PS2 (April 12.29-31p3)
G9352 169352 2001 UY16 from MLS (April 11.22-24p4)
G4207 164207 2004 GU9 from MLS (April 11.18-19p4)
F4993 154993 2005 EA94 from CSS (April 11.30-31p4)
E4411 144411 2004 EW9 from Geyserland Obs. (April 11.53p4)
E2555 142555 2002 TB58 from Geyserland Obs. (April 11.49-51p4)
E1525 141525 2002 FV5 from ATLAS Mauna Loa (April 11.42-45p4)
D8846 138846 2000 VJ61 from MLS (April 11.12-13p4)
D7199 137199 1999 KX4 from ATLAS Mauna Loa (April 11.29-31p4)
D7170 137170 1999 HF1 from Castelmartini Obs. (April 11.17p3)
D7064 137064 1998 WP5 from Castelmartini Obs. (April 11.09p3), Xuyi Sta. (April 11.68-71p3), and Saarbruecken Rastpfuhl Obs. (April 11.89-90p2)
D6618 136618 1994 CN2 from Castelmartini Obs. (April 10.99p3) and CSS (April 12.28-30p4)
B5052 115052 2003 RD6 from Lumezzane Obs. (April 10.82-83p3), Castelmartini Obs. (April 10.96p3), Geyserland Obs. (April 11.42-47p5), Wishing Star Obs. (April 12.08p3), CSS (April 12.24-25p4), and PS1 (April 12.29-31p3)
A8906 108906 2001 PL9 from MLS (April 11.12-13p4)
A6589 106589 2000 WN107 from CSS (April 11.12-14p4)
96189 96189 Pygmalion (1991 NT3) from MLS (April 11.14-15p4)
90367 90367 2003 LC5 from Lumezzane Obs. (April 10.85-86p4), Tentlingen Obs. (April 10.92-95p4), and MLS (April 11.24-26p4)
90075 90075 2002 VU94 from Xuyi Sta. (April 9.48-51p3)
89830 89830 2002 CE from ATLAS Mauna Loa (April 11.30-32p4)
86067 86067 1999 RM28 from ATLAS Mauna Loa (April 11.43-48p5)
85628 85628 1998 KV2 from Castelmartini Obs. (April 11.10-11p3)
68350 68350 2001 MK3 from Castelmartini Obs. (April 11.11-12p3) and CSS (April 11.45-46p4)
68278 68278 2001 FC7 from CSS (April 12.32-34p4)
65690 65690 1991 DG from ATLAS Mauna Loa (April 11.24-25p3), Gravina Obs. (April 11.79-80p3), and Wishing Star Obs. (April 12.05-06p3)
54686 54686 2001 DU8 from CSS (April 11.30-31p4)
54401 54401 2000 LM from Geyserland Obs. (April 11.55-56p2)
52768 52768 1998 OR2 from Lumezzane Obs. (April 8.79-86p4), CSS (April 11.17-19p4), program code 1 via Kuban State Univ. Obs. (April 11.71-91p55), Nastro Verde Obs. (April 11.77-80p4), San Vito Obs. (April 11.80p4), Gravina Obs. (April 11.81-89p9), Saarbruecken Rastpfuhl Obs. (April 11.83-84p2), QOS Obs. (April 11.85p15), West Park Obs. (April 11.88-92p7), Wishing Star Obs. (April 12.01p3), and iTelescope Obs. Mayhill (April 12.25-27p11)
40267 40267 1999 GJ4 from CSS (April 11.17-18p4)
35107 35107 1991 VH from Castelmartini Obs. (April 10.92-93p3), CSS (April 11.21-23p4), and ATLAS Mauna Loa (April 11.34-37p4)
34613 34613 2000 UR13 from CSS (April 11.17-19p3)
26760 26760 2001 KP41 from Lumezzane Obs. (April 10.88p2)
18172 18172 2000 QL7 from Xuyi Sta. (April 8.54-56p3), Lumezzane Obs. (April 9.80p3), and CSS (April 11.19-21p4)
09400 9400 1994 TW1 from ATLAS Mauna Loa (April 11.25-27p4) and Wishing Star Obs. (April 12.06-07p3)
08566 8566 1996 EN from CSS (April 11.19-21p4)
07088 7088 Ishtar (1992 AA) from Xuyi Sta. (April 9.57-59p3), ARO Westfield (April 11.11p4), and CSS (April 11.32-33p4)
06047 6047 1991 TB1 from CSS (April 11.17-19p4)
05660 5660 1974 MA from Geyserland Obs. (April 11.37-39p4)
05626 5626 1991 FE from Xuyi Sta. (April 8.54-56p3) and CSS (April 11.19-21p4)
04954 4954 Eric (1990 SQ) from CSS (April 12.34-36p4)
04581 4581 Asclepius (1989 FC) from Tentlingen Obs. (April 10.87-90p4) and CSS (April 11.23-25p2)
04450 4450 Pan (1987 SY) from MLS (April 11.14-15p4)
03103 3103 Eger (1982 BB) from MLS (April 11.12-13p4)
02329 2329 Orthos (1976 WA) from PS2 (April 12.29-31p3)
01866 1866 Sisyphus (1972 XA) from Xuyi Sta. (April 9.52-55p3) and ATLAS Mauna Loa (April 11.24-26p4)

<< OOC on 12 April '20 -- MPEC 2020-G91 - "05:46 UT" - Observations and Orbits of Comets and A/ Objects

AK20F070 A/2020 F7 (i=94.0°, q=5.332 AU, Q=1456.434 AU, TP=2021 Nov. 13.92799 TT) from St. Pardon de Conques Obs. (April 10.00-02p2)
CK20F060 C/2020 F6 (Panstarrs) (i=174.6°, q=3.524 AU, TP=2020 Apr. 16.34435 TT)
CK20F050 C/2020 F5 (Master) (i=51.7°, q=4.321 AU, TP=2021 Mar. 24.90403 TT) from Telescope Live (April 8.34-35p3) and B. Lutkenhoner via Slooh.com Chile Obs. (April 8.40p2)
PK20F040 P/2020 F4 (q=2.742 AU, Q=5.937 AU, TP=2010 Nov. 12.81114 TT)
CK20F030 C/2020 F3 (Neowise) (i=128.9°, q=0.296 AU, Q=1316.485 AU, TP=2020 July 3.72920 TT) from Lutkenhoner/Slooh.com Chile (April 2.04-05p2), Geyserland Obs. (April 5.35-38p5, 7.43p2 & 10.33-38p4), Blue Mountains Obs. (April 5.43p2 & 10.39-42p4), SADR Obs. (April 6.01-03p4 & 7.01-02p4), Perth Obs. (April 6.51-53p2, 7.57-59p2, 8.61p2 & 9.51-53p2), Gisborne Obs. (April 7.30-33p7), and Auger Obs. (April 10.99-00p3)
CK20F020 C/2020 F2 (ATLAS) (i=163.6°, q=8.815 AU, TP=2022 July 15.85863 TT) from Schiaparelli Obs. (April 3.12-13p2) and Cordell-Lorenz Obs. (April 3.40-43p3)
PK20F010 P/2020 F1 (Leonard) (q=3.970 AU, Q=9.579 AU, TP=2037 June 5.54985 TT)
CK20B030 C/2020 B3 (Rankin) (q=3.345 AU, Q=3326.367 AU, TP=2019 Oct. 19.89235 TT) from Schiaparelli Obs. (Feb. 20.03-05p2)
CK20B020 C/2020 B2 (Lemmon) (i=55.7°, q=2.770 AU, Q=137.834 AU, TP=2020 Jan. 26.82718 TT)
AK20B010 A/2020 B1 (q=1.748 AU, Q=102.041 AU, TP=2019 Dec. 25.94027 TT)
CK20A030 C/2020 A3 (ATLAS) (i=146.7°, q=5.769 AU, TP=2019 June 29.47550 TT)
CK20A020 C/2020 A2 (Iwamoto) (i=120.8°, q=0.978 AU, Q=2231.721 AU, TP=2020 Jan. 8.32375 TT) from Schiaparelli Obs. (March 11.99-02p3) and Brixiis Obs. (April 8.86-87p3)
AK20A010 A/2020 A1 (i=149.0°, q=1.671 AU, Q=50.229 AU, TP=2019 Dec. 2.77959 TT, H=18.0 ~851m)
AK19Y050 A/2019 Y5 (i=82.8°, q=4.914 AU, Q=1599.450 AU, TP=2019 Aug. 18.17777 TT)
CK19Y040 C/2019 Y4 (ATLAS) (i=45.4°, q=0.253 AU, Q=647.570 AU, TP=2020 May 31.01727 TT) from CSS (2019 Dec. 20.46-47p2 & April 10.14-16p3), Schiaparelli Obs. (Feb. 19.95-98p3, March 11.92-94p3, 18.15-17p3, April 3.84-86p5, 6.85-87p3 & 7.85-87p3), program code 2 via Slooh.com Canary Islands Obs. (March 30.89p4, April 1.90-91p15 & 6.88-89p6), iTelObs-Mayhill (March 31.23-26p13, April 6.18p3 & 10.22-23p3), Al Sadeem Obs. (March 31.70-78p7, April 8.67-70p4 & 9.66-71p4), Transit Dreams Obs. (April 3.08-16p15), Carmelita Obs. (April 3.88-91p3, 4.85-86p3, 5.81-82p3, 9.80-83p3 & 11.82-83p3), Northolt Branch Obs. (April 3.95-96p3, 5.94-95p3, 6.97-00p3, 9.90-96p5 & 10.93-94p3), Dettelbach Vineyard Obs. (April 4.81-84p3 & 10.84-85p3), Blanes Obs. (April 4.90p3), Hirao Obs. (April 5.45-46p3), Deokheung Obs. (April 5.48-58p10), Vulpecula Obs. (April 5.78p1, 5.83p1, 5.89p1, 6.77-83p3, 7.77-84p3, 9.77-84p4, 10.78p1, 10.82p1 & 10.87p1), Moletai Obs. (April 5.82p3 & 6.84p4), Chelmsford Obs. (April 5.84-90p4, 6.84-88p3, 7.84-85p2, 8.84p2, 9.84-87p3 & 10.84-88p3), Olmen Obs. (April 5.85-87p3, 8.85p3, 9.85-90p3 & 10.82-87p3), Brixiis Obs. (April 5.85-88p4, 6.92-96p5, 7.83-85p2, 7.89-91p2, 8.89-91p4 & 10.84-89p4), Koksijde Obs. (April 5.86-89p4, 6.87-91p4, 8.85-89p4, 9.86-88p4 & 10.85-88p4), Montcabre Obs. (April 5.89-96p6, 6.88-89p3, 8.88-90p3, 9.82-85p3, 10.87p1, 10.92-93p2 & 11.91-94p3), program code ">" (39) via iTelescope Obs. Mayhill (April 6.21-22p3), Berthelot Obs. (April 6.79-85p3 & 6.91-93p2), Sencelles Obs. (April 6.80-84p5, 8.81-84p6, 9.81-84p7 & 10.82-88p11), ROASTERR-1 (April 6.81p2), Chante-Perdrix Obs. (April 6.82-84p3, 7.83-84p3, 9.84-85p3 & 10.82-83p3), West Park Obs. (April 6.86-88p4 & 6.94p1), Costa Teguise Obs. (April 6.86-89p3, 7.91-93p3, 8.86p3, 9.87-88p3 & 10.89p3), Brignoles Obs. (April 6.87-88p3, 7.85-87p3, 8.80-86p3, 9.80-83p2, 9.88p1 & 10.82-85p3), Tarbatness Obs. (April 6.87-89p6 & 8.90-92p6), Clixby Obs. (April 6.87-89p6 & 11.94-95p5), Cardiff Obs. (April 6.89-92p6, 7.03-04p3, 8.85p6, 8.92-93p3 & 9.02p3), Glyn Marsh Obs. (April 6.91-93p3 & 7.89-90p2), Terrassa Obs. (April 6.91-92p6, 7.87-88p6, 8.88p3, 9.82-83p3 & 10.82p3), Great Shefford Obs. (April 6.98-99p3), Wishing Star Obs. (April 7.07p3), Sukagawa Obs. (April 7.51-53p3), Muensterschwarzach Obs. (April 7.79-82p7), Starry Wanderer Obs. (April 7.84-85p8 & 10.88p3), Gravina Obs. (April 8.78-80p4 & 9.90-91p4), Saarbruecken Rastpfuhl Obs. (April 8.82p2), San Vito Obs. (April 8.82-84p6, 9.82-84p6, 10.81-82p4 & 11.87-89p6), Carpe Noctem Obs. (April 8.83p3), Oberfrauendorf Obs. (April 8.83-84p4 & 11.82-84p5), Baldone Obs. (April 8.84-85p6 & 9.80p3), St. Saturnin les Avignon Obs. (April 8.89-91p3 & 9.86-88p3), 29PREMOTE Obs. (April 9.83-85p4, 10.83-91p5 & 11.81-89p4), Sant Pere Obs. (April 9.84p3 & 10.83p3), Sant Celoni Obs. (April 9.91-92p3), Dave Balam via Plaskett 1.8m Telescope (April 10.18-19p5 & 11.19-20p5), Zuben Obs. (April 10.82-83p8), Cancelada Obs. (April 10.82-86p24), Spica Obs. (April 10.88-89p3), and Petit Jean Mtn. South Obs. (PJMSO) (April 11.06-08p6)
PK19Y020 P/2019 Y2 (Fuls) (q=2.183 AU, Q=4.802 AU, TP=2026 July 25.20394 TT) from Castelmartini Obs. (April 3.05-06p3 & 4.00-01p3) and ATLAS Mauna Loa (April 10.46-48p4)
CK19Y010 C/2019 Y1 (ATLAS) (i=73.3°, q=0.838 AU, Q=451.006 AU, TP=2020 Mar. 15.56441 TT) from Chante-Perdrix Obs. (April 6.81p3 & 7.81-82p3), Tarbatness Obs. (April 9.03p3), Cardiff Obs. (April 9.13-17p6), 29PREMOTE Obs. (April 9.81-83p4 & 10.81-82p4), and Starry Wanderer Obs. (April 10.98-99p4)
PK19X010 P/2019 X1 (Pruyne) (q=4.326 AU, Q=8.082 AU, TP=2034 Dec. 12.47041 TT) from PS1 (2019 Jan. 3.33-37p4)
PK19V020 P/2019 V2 (Groeller) (Centaur, q=5.034 AU, Q=10.118 AU, TP=2041 May 4.98312 TT)
CK19V010 C/2019 V1 (Borisov) (i=61.9°, q=3.097 AU, Q=5069.282 AU, TP=2020 July 16.57044 TT)
CK19U060 C/2019 U6 (Lemmon) (i=61.0°, q=0.914 AU, Q=860.320 AU, TP=2020 June 18.82392 TT) from Geyserland Obs. (April 5.32-34p7, 7.28-31p7, 9.29-30p6 & 10.28-30p6), Perth Obs. (April 6.48-49p2, 9.48-49p2 & 10.48p2), and Aorangi Iti Obs. (April 10.37-38p4)
AK19U050 A/2019 U5 (i=113.5°, q=3.623 AU, TP=2023 Mar. 29.43159 TT)
PK19T060 P/2019 T6 (Panstarrs) (q=2.053 AU, Q=8.822 AU, TP=2032 July 22.17659 TT)
PK19T050 P/2019 T5 (ATLAS) (Centaur, q=1.527 AU, Q=14.486 AU, TP=2042 Mar. 31.41929 TT)
CK19T040 C/2019 T4 (ATLAS) (i=53.6°, q=4.243 AU, Q=1994.464 AU, TP=2022 June 9.16350 TT) from SADR Obs. (April 6.08-12p4)
CK19T030 C/2019 T3 (ATLAS) (i=121.9°, q=5.946 AU, Q=6990.709 AU, TP=2021 Mar. 2.70413 TT)
CK19S040 C/2019 S4 (Lemmon) (i=92.0°, q=3.442 AU, Q=474.937 AU, TP=2020 Apr. 7.94618 TT)
CK19Q040 C/2019 Q4 from Lutkenhoner/Slooh.com Chile (April 3.25-27p2)
AK19O030 A/2019 O3 (i=89.8°, q=8.820 AU, TP=2021 Mar. 7.74608 TT) from ATLAS Mauna Loa (April 9.57-59p4)
CK19N010 C/2019 N1 (ATLAS) (i=82.4°, q=1.705 AU, Q=132650.171 AU, TP=2020 Dec. 1.79004 TT) from Schiaparelli Obs. (March 12.04-07p3), Brixiis Obs. (April 5.91-92p3, 8.95-96p3 & 9.89-90p4), Xuyi Sta. (April 7.77-79p3), Tarbatness Obs. (April 8.99p3), Terrassa Obs. (April 9.91-92p3), and El Manzanillo Obs. (April 10.85-87p2)
CK19L030 C/2019 L3 (ATLAS) (i=48.4°, q=3.554 AU, TP=2022 Jan. 9.60321 TT)
CK19K080 C/2019 K8 (ATLAS) (i=93.2°, q=3.195 AU, Q=3587.871 AU, TP=2019 July 21.28974 TT)
CK19K070 C/2019 K7 (Smith) (i=103.5°, q=4.475 AU, TP=2020 June 16.87832 TT) from ATLAS Mauna Loa (April 10.57-59p4)
AK19K060 A/2019 K6 (i=132.4°, q=3.929 AU, Q=3014.957 AU, TP=2020 May 20.17531 TT)
CK19K050 C/2019 K5 (Young) (q=2.035 AU, Q=306.372 AU, TP=2019 June 22.78791 TT)
CK19K010 C/2019 K1 (ATLAS) (i=87.1°, q=2.013 AU, Q=24937.324 AU, TP=2020 Feb. 12.97077 TT) from Aorangi Iti Obs. (April 10.35-36p3)
CK19J030 C/2019 J3 (ATLAS) (i=131.4°, q=2.374 AU, Q=3390973.198 AU, TP=2019 Aug. 1.88134 TT)
AK19G040 A/2019 G4 (i=138.4°, q=5.859 AU, TP=2018 Sept. 15.82050 TT)
AK19G020 A/2019 G2 (i=159.2°, q=2.291 AU, Q=1444.549 AU, TP=2019 Dec. 10.05228 TT)
CK19F020 C/2019 F2 (ATLAS) (Centaur, q=2.259 AU, Q=31.805 AU, TP=2087 Apr. 11.78260 TT)
CK19F010 C/2019 F1 (ATLAS-Africano) (i=54.2°, q=3.596 AU, TP=2021 June 22.84146 TT) from ATLAS Haleakala (April 6.56-58p4) and Geyserland Obs. (April 10.58-60p4)
CK19E030 C/2019 E3 (ATLAS) (i=84.3°, q=10.313 AU, Q=16288.173 AU, TP=2023 Nov. 15.25842 TT)
CK19D010 C/2019 D1 (Flewelling) (q=1.578 AU, Q=277.742 AU, TP=2019 May 11.86771 TT)
AK19C010 A/2019 C1 (i=36.0°, q=6.581 AU, Q=1616.284 AU, TP=2020 May 5.71538 TT) from ATLAS Haleakala (April 10.34-36p4) and Blue Mountains Obs. (April 10.43-49p4 & 10.65p1)
CK18Y010 C/2018 Y1 (Iwamoto) (i=160.4°, q=1.286 AU, Q=286.422 AU, TP=2019 Feb. 7.04051 TT)
CK18W020 C/2018 W2 (Africano) (i=116.6°, q=1.455 AU, TP=2019 Sept. 5.71900 TT)
CK18W010 C/2018 W1 (Catalina) (i=83.3°, q=1.361 AU, Q=42.194 AU, TP=2019 May 11.82742 TT)
AK18V030 A/2018 V3 (i=165.0°, Q=239.726 AU, TP=2019 Sept. 8.67980 TT)
CK18U010 C/2018 U1 (Lemmon) (i=108.3°, q=4.993 AU, TP=2021 Nov. 3.08170 TT) from Castelmartini Obs. (April 4.12-13p2) and ATLAS Haleakala (April 8.62-64p3)
CK18R030 C/2018 R3 (Lemmon) (i=69.7°, q=1.290 AU, Q=3632.395 AU, TP=2019 June 7.19293 TT)
CK18N020 C/2018 N2 (ASASSN) (i=77.5°, q=3.125 AU, TP=2019 Nov. 10.96044 TT) from Terrassa Obs. (April 9.84-85p4)
CK18L020 C/2018 L2 (ATLAS) (i=67.4°, q=1.712 AU, Q=507.202 AU, TP=2018 Dec. 2.64864 TT)
CK18F040 C/2018 F4 (Panstarrs) (i=78.1°, q=3.440 AU, TP=2019 Dec. 4.12720 TT) from Aorangi Iti Obs. (April 11.31-32p4)
CK18D04O C/2018 DO4 (Lemmon) (i=160.5°, q=2.406 AU, Q=49.160 AU, TP=2019 Aug. 18.36536 TT)
CK18A060 C/2018 A6 (Gibbs) (i=77.0°, q=3.017 AU, Q=27.696 AU, TP=2077 June 25.80010 TT)
CK18A030 C/2018 A3 (ATLAS) (i=139.6°, q=3.276 AU, Q=988.736 AU, TP=2019 Jan. 12.76013 TT)
CK17Y020 C/2017 Y2 (Panstarrs) (i=128.4°, q=4.632 AU, TP=2020 Nov. 4.62117 TT)
AK17U070 A/2017 U7 (i=142.6°, q=6.420 AU, TP=2019 Sept. 13.30054 TT) from ATLAS Mauna Loa (April 8.60-62p4) and ATLAS Haleakala (April 10.60-62p4)
CK17U040 C/2017 U4 (Panstarrs) (i=158.2°, q=7.723 AU, TP=2018 Sept. 24.15031 TT)
CK17T020 C/2017 T2 (Panstarrs) (i=57.2°, q=1.615 AU, Q=8013.854 AU, TP=2020 May 4.95340 TT) from Schiaparelli Obs. (March 11.96-98p3), Carmelita Obs. (April 4.82-83p3 & 5.79-81p3), Brixiis Obs. (April 4.83-85p4, 5.82-84p4, 8.83-86p4 & 9.86-88p4), Blanes Obs. (April 4.86-87p3), Moletai Obs. (April 5.82p6 & 6.83p3), Olmen Obs. (April 5.82-85p3, 8.83-84p3 & 9.82-84p3), Montcabre Obs. (April 5.83-86p4 & 9.88-92p3), West Park Obs. (April 6.85-88p3, 8.85-87p3 & 11.85-87p3), Cardiff Obs. (April 6.85-88p6, 8.86p3 & 8.92p3), Sencelles Obs. (April 6.88-89p3), Tarbatness Obs. (April 6.94-95p4 & 8.98-99p3), ATLAS Mauna Loa (April 7.26-28p4), Starry Wanderer Obs. (April 7.88-89p9 & 11.85-86p6), Terrassa Obs. (April 9.83-84p3), Vulpecula Obs. (April 9.84-89p3), Brignoles Obs. (April 10.85-86p3), Cancelada Obs. (April 10.86-88p25), and Hoyerswerda Obs. (April 11.89-90p3)
CK17M040 C/2017 M4 (ATLAS) (i=105.6°, q=3.252 AU, TP=2019 Jan. 17.87860 TT) from Blue Mountains Obs. (April 5.63p2, 10.39p1, 10.44p1 & 10.65p1) and SADR Obs. (April 6.14-18p4)
CK17K020 C/2017 K2 (Panstarrs) (i=87.6°, q=1.797 AU, TP=2022 Dec. 19.66509 TT) from Schiaparelli Obs. (March 12.10-13p3), B. Lutkenhoner via Slooh.com Canary Islands Obs. (April 6.22-23p2), Tarbatness Obs. (April 9.01-02p3), Montcabre Obs. (April 10.08-09p2 & 10.17p1), Dettelbach Vineyard Obs. (April 10.12-14p3), and ATLAS Mauna Loa (April 11.54-56p4 & 11.64p1)
CK17B030 C/2017 B3 (LINEAR) (i=54.2°, q=3.922 AU, TP=2019 Feb. 2.63277 TT)
CK16X010 C/2016 X1 (Lemmon) (q=7.564 AU, Q=2759.060 AU, TP=2019 Apr. 29.08475 TT)
CK16R020 C/2016 R2 (Panstarrs) (i=58.2°, q=2.603 AU, Q=1115.908 AU, TP=2018 May 9.32705 TT)
CK16Q020 C/2016 Q2 (Panstarrs) (i=109.4°, q=7.082 AU, TP=2021 May 11.89205 TT)
CK16N060 C/2016 N6 (Panstarrs) (i=105.8°, q=2.667 AU, Q=3485.530 AU, TP=2018 July 18.10634 TT)
CK16N040 C/2016 N4 (Master) (i=72.6°, q=3.198 AU, Q=4788.327 AU, TP=2017 Sept. 16.47259 TT)
CK16M010 C/2016 M1 (Panstarrs) (i=91.0°, q=2.212 AU, Q=8144.673 AU, TP=2018 Aug. 10.29634 TT) from Blue Mountains Obs. (April 10.38-42p4)
CK16A010 C/2016 A1 (Panstarrs) (i=121.2°, q=5.325 AU, TP=2017 Nov. 22.90327 TT)
CK15X050 C/2015 X5 (Panstarrs) (i=124.3°, q=6.799 AU, TP=2017 Dec. 29.97595 TT)
CK15X01Y C/2015 XY1 (Lemmon) (i=148.9°, q=7.925 AU, TP=2018 Apr. 28.37866 TT)
CK15T020 C/2015 T2 (Panstarrs) (i=124.5°, q=6.934 AU, Q=4846.258 AU, TP=2017 May 18.75598 TT)
CK15O010 C/2015 O1 (Panstarrs) (i=127.2°, q=3.730 AU, TP=2018 Feb. 19.02352 TT)
CK15D030 C/2015 D3 (Panstarrs) (i=128.5°, q=8.148 AU, TP=2016 May 3.05693 TT)
CK14W050 C/2014 W5 (Lemmon-Panstarrs) (i=145.6°, q=2.408 AU, Q=204.950 AU, TP=2016 Feb. 8.55067 TT)
CK14R030 C/2014 R3 (Panstarrs) (i=90.9°, q=7.276 AU, Q=16362.547 AU, TP=2016 Aug. 8.75014 TT)
CK14O04E C/2014 OE4 (Panstarrs) (i=81.3°, q=6.248 AU, TP=2016 Dec. 12.57437 TT)
CK14B010 C/2014 B1 (Schwartz) (q=9.556 AU, Q=70721.567 AU, TP=2017 Sept. 9.77410 TT)
CK11K36P C/2011 KP36 (Spacewatch) (q=4.879 AU, Q=72.644 AU, TP=2016 May 27.25642 TT)
CK10U030 C/2010 U3 (Boattini) (i=55.5°, q=8.445 AU, Q=5402.225 AU, TP=2019 Feb. 26.20275 TT) from Tentlingen Obs. (April 8.00-04p3) and ATLAS Mauna Loa (April 11.41-44p4)
CK10M010 C/2010 M1 (Gibbs) (i=116.5°, q=8.002 AU, Q=2171.981 AU, TP=2010 Dec. 8.76708 TT)
CK10A040 C/2010 A4 (Siding Spring) (i=96.6°, q=2.721 AU, Q=563.180 AU, TP=2010 Oct. 10.84645 TT)
0392P 392P/LINEAR (2004 WR9) (q=2.055 AU, Q=10.941 AU, TP=2035 June 22.35656 TT)
0388P 388P/Gibbs (2007 T4) (q=2.006 AU, Q=8.501 AU, TP=2031 July 28.83831 TT)
0302P 302P/Lemmon-Panstarrs (2007 RJ236) (q=3.289 AU, Q=5.247 AU, TP=2025 Mar. 9.42089 TT)
0296P 296P/Garradd (2007 H3) (q=1.775 AU, Q=5.147 AU, TP=2027 Mar. 20.53646 TT)
0278P 278P/McNaught (2006 K2) (q=1.965 AU, Q=5.235 AU, TP=2027 Sept. 16.43419 TT) from ATLAS Mauna Loa (April 10.45-47p4)
0260P 260P/McNaught (2005 K3) (q=1.418 AU, Q=5.828 AU, TP=2026 Aug. 5.00991 TT)
0257P 257P/Catalina (2005 JY126) from SADR Obs. (April 6.35-36p2)
0249P 249P/LINEAR (2006 U1) (q=0.500 AU, Q=5.030 AU, TP=2025 Feb. 1.69550 TT) from Schiaparelli Obs. (March 17.89-90p2), Geyserland Obs. (April 9.43-47p3), ATLAS Mauna Loa (April 10.36-38p4), ATLAS Haleakala (April 10.44-45p4), and Olmen Obs. (April 10.89-90p3)
0246P 246P/NEAT (2004 F3) (q=3.480 AU, Q=5.227 AU, TP=2029 Oct. 28.60008 TT) from Collonges Obs. (April 1.90-93p2), Castelmartini Obs. (April 3.03p3 & 3.98-99p3), Brixiis Obs. (April 5.88-89p3), ATLAS Mauna Loa (April 9.37-39p4), Olmen Obs. (April 9.90-92p3), Dettelbach Vineyard Obs. (April 9.95-97p3), PS2 (April 10.46-50p4), and CSS (April 11.34-35p4)
0228P 228P/LINEAR (2001 YX127) (q=3.418 AU, Q=4.906 AU, TP=2028 Sept. 6.21753 TT) from SATINO-1 (March 15.93-96p4)
0223P 223P/Skiff (2002 S1) (q=2.429 AU, Q=5.886 AU, TP=2027 July 24.87730 TT)
0210P 210P/Christensen (2003 K2) from EHB01 Obs. (April 11.82p2)
0203P 203P/Korlevic (1999 WJ7) from Schiaparelli Obs. (Feb. 19.88-90p2)
0173P 173P/Mueller (1993 W1) (q=4.250 AU, Q=7.259 AU, TP=2035 Aug. 29.20570 TT)
0163P 163P/NEAT (2004 V4) (q=2.055 AU, Q=5.465 AU, TP=2026 Nov. 24.02430 TT)
0159P 159P/LONEOS (2003 UD16) (q=3.636 AU, Q=8.127 AU, TP=2032 July 28.74966 TT)
0155P 155P/Shoemaker (1986 A1) from Castelmartini Obs. (April 2.97-98p2 & 3.93-94p3)
0137P 137P/Shoemaker-Levy (1990 UL3) (q=1.936 AU, Q=7.122 AU, TP=2028 July 29.69190 TT)
0124P 124P/Mrkos (1991 F1) (q=1.735 AU, Q=5.019 AU, TP=2026 June 23.59998 TT) from Castelmartini Obs. (April 2.94-95p3 & 3.86-87p3), Homburg-Erbach Obs. (April 7.82-85p3), ATLAS Haleakala (April 8.44-46p4), Olmen Obs. (April 8.90-91p3), Tarbatness Obs. (April 9.06-07p3), ATLAS Mauna Loa (April 9.33-36p4), Terrassa Obs. (April 9.87-89p6), and San Vito Obs. (April 10.85-87p4)
0117P 117P/Helin-Roman-Alu (1989 T2) from ATLAS Mauna Loa (April 9.32-34p4) and Clixby Obs. (April 11.98-99p3)
0114P 114P/Wiseman-Skiff (1986 Y1) from Cordell-Lorenz Obs. (Feb. 28.09-13p3), Castelmartini Obs. (April 2.81-82p3 & 3.81-82p3), and ATLAS Mauna Loa (April 10.23-25p4)
0112P 112P/Urata-Niijima (1986 UD) from Schiaparelli Obs. (Feb. 19.84-85p2)
0101P 101P/Chernykh (1977 Q1) from Schiaparelli Obs. (Feb. 15.81-82p2)
0099P 99P/Kowal (1977 H2) (q=4.706 AU, Q=7.506 AU, TP=2022 Apr. 12.64358 TT)
0088P 88P/Howell (1981 Q1) from Schiaparelli Obs. (Feb. 20.08-11p3 & March 4.07-10p3), Brixiis Obs. (April 5.93-94p3), ATLAS Mauna Loa (April 10.45-47p4), and ATLAS Haleakala (April 10.53-55p3)
0087P 87P/Bus (1981 E1) from Brixiis Obs. (April 5.90-91p2), ATLAS Mauna Loa (April 10.43-45p4), ATLAS Haleakala (April 10.50-52p4), and Olmen Obs. (April 10.93-94p4)
0078P 78P/Gehrels (1973 S1) from Schiaparelli Obs. (March 11.80-84p3 & 17.94-97p3), ATLAS Mauna Loa (April 9.27-29p4 & 10.31-33p4), and Olmen Obs. (April 10.88-89p3)
0058P 58P/Jackson-Neujmin (1936 S1) (q=1.438 AU, Q=6.838 AU, TP=1987 May 24.51851 TT) from Lutkenhoner/Slooh.com Chile (April 9.40-42p3 & 10.41-42p2)
0031P 31P/Schwassmann-Wachmann (1929 B1) from Olmen Obs. (April 10.91p2)
0029P 29P/Schwassmann-Wachmann (1927 V1) (q=5.708 AU, Q=6.116 AU, TP=2035 Feb. 13.48014 TT)
0028P 28P/Neujmin (1913 R2) (q=1.579 AU, Q=12.366 AU, TP=2039 July 23.38503 TT)
0010P 10P/Tempel (1873 N1) from Olmen Obs. (April 10.92-93p3), CSS (April 11.32-33p4), and Maisoncelles Obs. (April 11.93-95p2)
0002I 2I/Borisov (C/2019 Q4) (i=44.1°, q=2.007 AU, TP=2019 Dec. 8.55183 TT)

MPEC 2020-G90 - "03:14 UT" - 2020 GJ2

K20G02J 2020 GJ2 (small asteroid, Q=4.648 AU, H=24.7 ~39m) was picked up at 0634 UT on 11 April by CSS, observing it at April 11.27-29p4. This detection was confirmed by PS1 (March 23.38-43p3), Steward Mt. Lemmon Sta. (April 11.36p4), ROASTERR-1 (April 11.79-80p3), KLENOT (April 11.81p10), Celado Obs. (April 11.81-82p3), Pascoli Obs. (April 11.83-84p3), Paus Obs. (April 11.83-84p3), Ametlla del Valles Obs. (April 11.84-86p6), Visnjan Obs. (April 11.86p5), Guidestar Obs. (April 11.86-88p3), Dettelbach Vineyard Obs. (April 11.86-88p3), St. Pardon de Conques Obs. (April 11.87p3), Hoyerswerda Obs. (April 11.87-88p4), GiaGa Obs. (April 11.88-91p3), Oberfrauendorf Obs. (April 11.88-90p6), Luscherz Obs. (April 11.89-92p3), Clixby Obs. (April 11.90p3), Bernezzo Obs. (April 11.90-91p3), Nonndorf Obs. (April 11.90-93p5), Schwarzschild Obs. (April 11.91p3), Great Shefford Obs. (April 11.92-93p4), Schiaparelli Obs. (April 12.01-02p2), and Squirrel Valley Obs. (April 12.06-08p7).

Observers on 12 April '20

A total of 108 observers appear in today's MPECs.

Code	Observer / observatory
`L27`	29PREMOTE Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1
`M43`	Al Sadeem Obs. in Abu Dhabi, 1 in MPEC 2020-G91 -- C/2019 Y4
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2020-G90 -- 2020 GJ2
`A50`	Andrushivka Obs. in Ukraine, 1 in MPEC 2020-G92 -- 2020 GJ2
`R57`	Aorangi Iti Obs. in New Zealand, 3 in MPEC 2020-G91 -- C/2019 U6, C/2019 K1, C/2018 F4
`H21`	Astronomical Research Obs. Westfield in Illinois, 5 in MPEC 2020-G92 -- 2020 GM1, 2020 GJ1, 2020 FX4, 2020 FO2, 7088
`T05`	ATLAS Haleakala in Hawaii, 8 in MPEC 2020-G91 -- C/2019 F1, 2019 C1, C/2018 U1, 2017 U7, 249P, 124P, 88P, 87P
`T08`	ATLAS Mauna Loa in Hawaii, 30 in MPECs 2020-G91 & 2020-G92 -- 2020 GD2, P/2019 Y2, 2019 O3, C/2019 K7, 2017 U7, C/2017 T2, C/2017 K2, 2010 XD11, C/2010 U3, 89830, 86067, 65690, 539940, 363599, 35107, 333555, 252793, 141525, 137199, 9400, 1866, 278P, 249P, 246P, 124P, 117P, 114P, 88P, 87P, 78P
`I47`	Auger Obs. in Argentina, 2 in MPECs 2020-G91 & 2020-G94 -- C/2020 F8, C/2020 F3
`069`	Baldone Obs. in Latvia, 1 in MPEC 2020-G91 -- C/2019 Y4
`C77`	Bernezzo Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
`L54`	Berthelot Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`C86`	Blanes Obs. in Spain, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`Q68`	Blue Mountains Obs. in New South Wales, 4 in MPEC 2020-G91 -- C/2020 F3, 2019 C1, C/2017 M4, C/2016 M1
`G20`	Brignoles Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`B96`	Brixiis Obs. in Belgium, 7 in MPEC 2020-G91 -- C/2020 A2, C/2019 Y4, C/2019 N1, C/2017 T2, 246P, 88P, 87P
`Z36`	Cancelada Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`Z46`	Cardiff Obs., 3 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1, C/2017 T2
`B20`	Carmelita Obs. in Spain, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`I72`	Carpe Noctem Obs. in Spain, 1 in MPEC 2020-G91 -- C/2019 Y4
`160`	Castelmartini Obs. in Italy, 24 in MPECs 2020-G91 & 2020-G92 -- P/2019 Y2, 2019 XG1, C/2018 U1, 2011 FZ2, 85628, 68350, 494880, 448818, 436324, 413989, 388945, 388838, 373428, 35107, 318050, 276274, 137170, 137064, 136618, 115052, 246P, 155P, 124P, 114P
`703`	Catalina Sky Survey (CSS) in Arizona, 38 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 FO2, 2020 FA7, C/2019 Y4, 2019 XG1, 2017 FE90, 2013 GY7, 2001 GS2, 68350, 68278, 54686, 52768, 494880, 477524, 425450, 40267, 388945, 388838, 35107, 34613, 276732, 276274, 274138, 248926, 190166, 18172, 154993, 136618, 115052, 106589, 8566, 7088, 6047, 5626, 4954, 4581, 246P, 10P
`K51`	Celado Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
`A77`	Chante-Perdrix Obs. in France, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1
`970`	Chelmsford Obs. in England, 1 in MPEC 2020-G91 -- C/2019 Y4
`Z99`	Clixby Obs. in England, 4 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GH2, C/2019 Y4, 117P
`178`	Collonges Obs., 1 in MPEC 2020-G91 -- 246P
`850`	Cordell-Lorenz Obs. in Tennessee, 2 in MPEC 2020-G91 -- C/2020 F2, 114P
`Z39`	Costa Teguise Obs. in the Canary Islands, 1 in MPEC 2020-G91 -- C/2019 Y4
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2020-G92 -- 333555
`I39`	Cruz del Sur Obs. in Argentina, 1 in MPEC 2020-G94 -- C/2020 F8
`P66`	Deokheung Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`K87`	Dettelbach Vineyard Obs. in Germany, 12 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GF2, 2020 GD2, 2020 GA2, 2020 FV6, 2020 FO2, 2020 FM6, 2020 FA7, 2020 FA3, C/2019 Y4, C/2017 K2, 246P
`K77`	EHB01 Obs., 1 in MPEC 2020-G91 -- 210P
`I48`	El Catalejo Obs. in Argentina, 1 in MPEC 2020-G94 -- C/2020 F8
`Z40`	El Manzanillo Obs., 1 in MPEC 2020-G91 -- C/2019 N1
`E89`	Geyserland Obs. in New Zealand, 9 in MPECs 2020-G91 & 2020-G92 -- C/2020 F3, C/2019 U6, C/2019 F1, 54401, 144411, 142555, 115052, 5660, 249P
`203`	GiaGa Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
`E94`	Gisborne Obs. in New Zealand, 3 in MPECs 2020-G91, 2020-G92 & 2020-G94 -- 2020 GF2, C/2020 F8, C/2020 F3
`Z30`	Glyn Marsh Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`K73`	Gravina Obs. in Italy, 3 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 65690, 52768
`J95`	Great Shefford Obs. in England, 5 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GH2, 2020 GF2, 2020 GA2, C/2019 Y4
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2020-G90 -- 2020 GJ2
`Q56`	Heaven's Mirror Obs., 1 in MPEC 2020-G94 -- C/2020 F8
`P87`	Hirao Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`196`	Homburg-Erbach Obs. in Germany, 1 in MPEC 2020-G91 -- 124P
`C43`	Hoyerswerda Obs. in Germany, 2 in MPECs 2020-G90 & 2020-G91 -- 2020 GJ2, C/2017 T2
`K78`	Iota Scorpii Obs., 1 in MPEC 2020-G92 -- 2020 GD2
`H06`	iTelescope Obs. Mayhill in New Mexico, 2 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 52768
`H06>`	program code ">" (39) via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-G91 -- C/2019 Y4
`Q62`	iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
`Q620`	Ernesto Guido in Italy via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
`Q621`	Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
`Q622`	Marian Urbanik in Slovakia via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
`Q62{`	Nirmal Paul in India via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
`246`	KLENOT in the Czech Republic, 9 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GG2, 2020 GF2, 2020 GD2, 2020 GA2, 2020 FX5, 2020 FV6, 2020 FO2, 2020 FM6
`L12`	Koksijde Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-G92 -- 52768
`Q63`	LCO Siding Spring A in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
`130`	Lumezzane Obs. in Italy, 11 in MPEC 2020-G92 -- 2020 FO2, 2020 FA7, 2010 XD11, 90367, 52768, 373428, 26760, 252793, 228368, 18172, 115052
`K30`	Luscherz Obs. in Switzerland, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2001 GS2
`C10`	Maisoncelles Obs. in France, 1 in MPEC 2020-G91 -- 10P
`152`	Moletai Obs. in Lithuania, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`213`	Montcabre Obs. in Spain, 3 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2, C/2017 K2
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 17 in MPEC 2020-G92 -- 2020 FX4, 2019 NN36, 2011 EP40, 2010 XD11, 2009 AH16, 96189, 90367, 511523, 483878, 482244, 409836, 169352, 164207, 138846, 108906, 4450, 3103
`K74`	Muensterschwarzach Obs. in Germany, 3 in MPECs 2020-G91 & 2020-G92 -- 2020 GF2, 2020 GA2, C/2019 Y4
`C82`	Nastro Verde Obs. in Italy, 1 in MPEC 2020-G92 -- 52768
`C47`	Nonndorf Obs. in Austria, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GF2
`Z80`	Northolt Branch Obs. in England, 1 in MPEC 2020-G91 -- C/2019 Y4
`G34`	Oberfrauendorf Obs. in Germany, 4 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GF2, 2020 GD2, C/2019 Y4
`C23`	Olmen Obs. in Belgium, 9 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2, 249P, 246P, 124P, 87P, 78P, 31P, 10P
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 11 in MPECs 2020-G90, 2020-G91, 2020-G92 & 2020-G93 -- 2020 GK2, 2020 GJ2, P/2019 X1, 2019 WB6, 2019 SN10, 2008 FG, 402267, 391033, 274138, 252793, 115052
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 8 in MPECs 2020-G91, 2020-G92 & 2020-G93 -- 2020 GK2, 2020 AZ2, 2017 GK4, 2017 FE90, 189700, 183548, 2329, 246P
`K63`	Pascoli Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
`B49`	Paus Obs. in Spain, 1 in MPEC 2020-G90 -- 2020 GJ2
`323`	Perth Obs. in Western Australia, 3 in MPECs 2020-G91 & 2020-G94 -- C/2020 F8, C/2020 F3, C/2019 U6
`A53`	Peschiera del Garda Obs. in Italy, 4 in MPEC 2020-G92 -- 2020 GF2, 2020 GD2, 2020 GA2, 2020 FA7
`H45`	Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2020-G91 -- C/2019 Y4
`6581`	Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-G91 -- C/2019 Y4
`D29`	Purple Mtn. Obs. Xuyi Station in China, 10 in MPECs 2020-G91 & 2020-G92 -- C/2019 N1, 2001 GS2, 90075, 373428, 250620, 18172, 137064, 7088, 5626, 1866
`L18`	QOS Obs., 4 in MPEC 2020-G92 -- 2020 GF2, 2020 GA2, 52768, 413989
`L04`	ROASTERR-1 in Romania, 5 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GA2, C/2019 Y4, 2010 XD11, 373428
`247`	roving observer, 1 in MPEC 2020-G94 -- C/2020 F8
`L40`	Saarbruecken Rastpfuhl Obs., 5 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 2001 GS2, 539940, 52768, 137064
`X03`	SADR Obs., 4 in MPEC 2020-G91 -- C/2020 F3, C/2019 T4, C/2017 M4, 257P
`233`	San Vito Obs. in Italy, 3 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 52768, 124P
`B70`	Sant Celoni Obs. in Spain, 1 in MPEC 2020-G91 -- C/2019 Y4
`B56`	Sant Pere Obs. in Spain, 1 in MPEC 2020-G91 -- C/2019 Y4
`C95`	SATINO-1 in France, 2 in MPECs 2020-G91 & 2020-G92 -- 2019 YG7, 228P
`204`	Schiaparelli Obs. in Italy, 14 in MPECs 2020-G90 & 2020-G91 -- 2020 GJ2, C/2020 F2, C/2020 B3, C/2020 A2, C/2019 Y4, C/2019 N1, C/2017 T2, C/2017 K2, 249P, 203P, 112P, 101P, 88P, 78P
`033`	Schwarzschild Obs. in Germany, 23 in MPECs 2020-G90, 2020-G92 & 2020-G93 -- 2020 GY1, 2020 GX1, 2020 GU1, 2020 GP1, 2020 GM1, 2020 GK2, 2020 GK1, 2020 GJ2, 2020 GF2, 2020 GE2, 2020 GB, 2020 GA2, 2020 GA1, 2020 FV6, 2020 FM6, 2020 FD3, 2017 UZ44, 2017 FE90, 2016 EE157, 2016 EE156, 2015 FT118, 2013 AO27, 2008 FG
`K14`	Sencelles Obs. in Spain, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`G402`	program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-G91 -- C/2019 Y4
`G409`	B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-G91 -- C/2017 K2
`W883`	B. Lutkenhoner in Germany via Slooh.com Chile Obs. in Chile, 4 in MPEC 2020-G91 -- C/2020 F5, C/2020 F3, C/2019 Q4, 58P
`L39`	Spica Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`W34`	Squirrel Valley Obs. in North Carolina, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GB
`I93`	St. Pardon de Conques Obs. in France, 2 in MPECs 2020-G90 & 2020-G91 -- 2020 GJ2, 2020 F7
`K21`	St. Saturnin les Avignon Obs. in France, 1 in MPEC 2020-G91 -- C/2019 Y4
`C36`	Starry Wanderer Obs. in Belarus, 3 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1, C/2017 T2
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GA2
`Q23`	Sukagawa Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`Q38`	Swan Hill Obs., 1 in MPEC 2020-G94 -- C/2020 F8
`I81`	Tarbatness Obs. in Scotland, 6 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1, C/2019 N1, C/2017 T2, C/2017 K2, 124P
`X02`	Telescope Live in Chile, 2 in MPECs 2020-G91 & 2020-G94 -- C/2020 F8, C/2020 F5
`A16`	Tentlingen Obs. in Switzerland, 3 in MPECs 2020-G91 & 2020-G92 -- C/2010 U3, 90367, 4581
`C35`	Terrassa Obs. in Spain, 5 in MPEC 2020-G91 -- C/2019 Y4, C/2019 N1, C/2018 N2, C/2017 T2, 124P
`W33`	Transit Dreams Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
`L01`	Visnjan Obs. in Croatia, 3 in MPECs 2020-G90, 2020-G92 & 2020-G93 -- 2020 GK2, 2020 GJ2, 2020 GH2
`G23`	Vulpecula Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
`Z92`	West Park Obs. in England, 3 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, C/2017 T2, 52768
`I15`	Wishing Star Obs. in Rhode Island, 6 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 2019 XG1, 65690, 52768, 115052, 9400
`Q78`	Woogaroo Obs., 1 in MPEC 2020-G92 -- 315098
`Z57`	Zuben Obs., 1 in MPEC 2020-G91 -- C/2019 Y4

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 12 April '20

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL and NEODyS listings is 100 years, and both post impact solutions beyond that for some special objects.
For the latest official risk assessments, and for explanations of the terminology, see the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.
0000NNN000 Object	Risk Monitor	When Noted UTC	0000T0000 Year Range	VI #	000NN00 Prob Cum	T0000 PS Cum	T0000 PS Max	T S	Notes for Today's Latest Risk Assessments

2020 GH2	NEODyS	1630	2047	1	8.3e-09	-8.63	-8.63	0	NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2020-04-11.265 to 2020-04-11.947."

2020 GK1	JPL Sentry	1630	2105-2105	1	1.012e-10	-10.10	-10.1	0	JPL: Computed at 06:48 today Pacific time based on 40 observations spanning 8.5190 days (2020-Apr-03.43665 to 2020-Apr-11.95566). Diameter approximately 0.032 km. from weighted mean H=25.14.

2020 FV6	JPL Sentry	1630	2092-2092	1	4.693e-09	-7.32	-7.32	0	JPL: Computed at 06:28 today Pacific time based on 54 observations spanning 13.511 days (2020-Mar-29.51039 to 2020-Apr-12.02164). Diameter approximately 0.088 km. from weighted mean H=22.94.
2020 FV6	NEODyS	1630	2092	1	1.76e-10	-8.75	-8.75	0	NEODyS: "Based on 54 optical observations (of which 0 are rejected as outliers) from 2020-03-29.511 to 2020-04-12.022."

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology on 12 April '20

Times are UTC for when items were noted or added by The Tracking News.

2332	Grabbed MPEC 2020-G93 - 2020 GK2 - see above Grabbed MPEC 2020-G94 - Comet C/2020 F8 (SWAN) - see above
1630	Noted that JPL Sentry has updated its 2020 FV6 risk assessment - see above Noted that NEODyS has updated its 2020 FV6 risk assessment - see above Noted that NEODyS has posted 2020 GH2 as an impact risk - see above Noted that JPL Sentry has updated its 2020 GK1 risk assessment - see above Grabbed MPEC 2020-G91 - Observations and Orbits of Comets and A/ Objects - see above Grabbed MPEC 2020-G92 - Daily Orbit Update - see above
0420	Grabbed MPEC 2020-G90 - 2020 GJ2 - see above

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