2020-04-04 Tracking News

Contents on 4 April '20

IAU Minor Planet Center
- NEOCP Activity -- 48 listings
- New MPECs -- nineteen MPECs
Observers -- 33 observers
Impact Risk Monitoring -- three objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1114 risk-listed objects, 99 have had news in the last 31 days. Updated at 1621 UTC on 4 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 4 April '20

The MPC's NEO Confirmation Page has 48 listings

When last checked at 2350 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 48 objects listed. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 67 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 4 April '20

Minor Planet Electronic Circulars

As of last check at 2350 UTC, there have been nineteen MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2020-G23 time-stamped "03:58 UT" - 2020 GN - see below
MPEC 2020-G24 time-stamped "11:12 UT" - 2005 GZ110 - see below
MPEC 2020-G25 time-stamped "11:44 UT" - 2020 GO - see below
MPEC 2020-G26 time-stamped "11:50 UT" - 2020 GP - see below
MPEC 2020-G27 time-stamped "11:55 UT" - 2020 GQ - see below
MPEC 2020-G28 time-stamped "11:59 UT" - 2020 GR - see below
MPEC 2020-G29 time-stamped "12:12 UT" - Daily Orbit Update - see below
MPEC 2020-G30 time-stamped "13:12 UT" - 2020 GS - see below
MPEC 2020-G31 time-stamped "13:16 UT" - 2020 GT - see below
MPEC 2020-G32 time-stamped "13:18 UT" - 2020 GU - see below
MPEC 2020-G33 time-stamped "13:23 UT" - 2020 GV - see below
MPEC 2020-G34 time-stamped "13:29 UT" - 2020 GW - see below
MPEC 2020-G35 time-stamped "13:33 UT" - 2020 GX - see below
MPEC 2020-G36 time-stamped "13:44 UT" - 2016 FT14 - see below
MPEC 2020-G37 time-stamped "13:47 UT" - 2020 GY - see below
MPEC 2020-G38 time-stamped "13:49 UT" - 2020 GZ - see below
MPEC 2020-G39 time-stamped "13:51 UT" - 2020 GA1 - see below
MPEC 2020-G40 time-stamped "15:00 UT" - 2018 NM4 - see below
MPEC 2020-G41 time-stamped "15:01 UT" - 2019 DS1

MPEC 2020-G41 - "15:01 UT" - 2019 DS1

K19D01S 2019 DS1 (risk listed, Earth MOID=0.2 LD, H=25.6 ~26m, close passer) from Marco Micheli via Cerro Paranal (Feb. 27.03-06p3 at G=24.5-7) and UH/Tholen NEO Follow-Up Subaru Telescope (Tholen Subaru) (March 24.24p1 at G=25.21)

MPEC 2020-G40 - "15:00 UT" - 2018 NM4

K18N04M 2018 NM4 (H=20.9 ~224m) from Pan-STARRS 1 (PS1) (2015 Jan. 26.50-51p2 at G=23.2-4, 2016 Dec. 23.42-43p2 at G=22.4-5, 2017 Jan. 3.37-39p2 at G=22.6-23.2, 2018 July 25.60p1 at G=22.4 & April 3.59-63p4 at G=22.9-23.3)

MPEC 2020-G39 - "13:51 UT" - 2020 GA1

K20G01A 2020 GA1 (small asteroid, H=24.7 ~39m) was picked up at 0446 UT on 3 April by the Mt. Lemmon Survey (MLS), observing it at April 3.20-22p4 and 4.22p3. This detection was confirmed by Pan-STARRS 2 (PS2) (April 2.33-35p3) and Steward Obs. Mt. Lemmon Station (April 3.31-32p3).

MPEC 2020-G38 - "13:49 UT" - 2020 GZ

K20G00Z 2020 GZ (Earth MOID=1.9 LD, H=27.0 ~13m) was picked up at 0755 UT on 2 April by MLS, observing it at April 2.33-35p4, 3.38p3, and 4.26-31p3. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.44-45p4 at G=21.2-22.9).

MPEC 2020-G37 - "13:47 UT" - 2020 GY

K20G00Y 2020 GY (small asteroid, H=25.3 ~29m) was picked up at 0529 UT on 2 April by MLS, observing it at April 2.23-24p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.32-33p4 at G=20.8-21.1, 3.21-22p3 at G=21.2-6 & 4.32-33p4 at G=21.1-22.7).

MPEC 2020-G36 - "13:44 UT" - 2016 FT14

K16F14T 2016 FT14 (H=24.8 ~37m, NHATS) from PS2 (April 2.49-50p2), MLS (April 3.38-40p4), Steward Mt. Lemmon Sta. (April 3.46p3), Visnjan Obs. (April 4.06-07p4), and Schwarzschild Obs. (April 4.07p3)

MPEC 2020-G35 - "13:33 UT" - 2020 GX

K20G00X 2020 GX (risk listed, H=24.1 ~51m) was picked up at 0658 UT on 2 April by MLS, observing it at April 2.29-31p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.38-39p3, 3.23-24p3 & 4.20-21p4) and Visnjan Obs. (April 3.03-04p3).

MPEC 2020-G34 - "13:29 UT" - 2020 GW

K20G00W 2020 GW (Earth MOID=1.1 LD, H=27.3 ~12m) was picked up at 0801 UT on 2 April by MLS, observing it at April 2.33-35p4 at G=20.9-21.1, 3.33p3 at G=21.3-8, and 4.34-38p7 at G=21.1-22.5. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.43-44p3 at G=22.1-5).

MPEC 2020-G33 - "13:23 UT" - 2020 GV

K20G00V 2020 GV (small asteroid, H=26.3 ~19m) was picked up at 0423 UT on 2 April by MLS, observing it at April 2.18-20p3 and 2.35p4. This detection was confirmed by Visnjan Obs. (April 2.92-93p4) and Steward Mt. Lemmon Sta. (April 3.20-21p3 & 4.23-24p4).

MPEC 2020-G32 - "13:18 UT" - 2020 GU

K20G00U 2020 GU (small asteroid, H=24.7 ~39m) was picked up at 0316 UT on 2 April by MLS, observing it at April 2.14-15p4, 3.22p3, and 4.18-19p3. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.25-26p4) and Visnjan Obs. (April 2.84-86p5).

MPEC 2020-G31 - "13:16 UT" - 2020 GT

K20G00T 2020 GT (small asteroid, Earth MOID=6.7 LD, H=25.7 ~25m) was picked up at 0350 UT on 2 April by MLS, observing it at April 2.16-18p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.28p4, 3.19-20p3 & 4.20p4) and Visnjan Obs. (April 2.89-90p4).

MPEC 2020-G30 - "13:12 UT" - 2020 GS

K20G00S 2020 GS (small asteroid, H=23.6 ~65m) was picked up at 0912 UT on 2 April by MLS, observing it at April 2.38-40p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.48p2, 3.37p4 & 4.49p4), Visnjan Obs. (April 3.05-06p2), Jana Pittichova Chesley via Table Mtn. Obs. (April 3.47-49p2), and Schwarzschild Obs. (April 4.09-10p3).

<< DOU on 4 April '20 >> MPEC 2020-G29 - "12:12 UT" - Daily Orbit Update

Observations of risk-listed objects
K20G00H 2020 GH (small asteroid, arc=1 day, H=29.0 ~5m, close passer) from Aorangi Iti Obs. (April 3.43-44p4)
K20F06V 2020 FV6 (small asteroid, Q=4.433 AU, arc=5 days, H=23.0 ~85m) from MLS (April 3.39-40p4)
Observations of recently (no longer) risk-listed objects
K20F02E 2020 FE2 (small asteroid, arc=11 days, H=26.0 ~21m, close passer) from Schiaparelli Obs. (March 28.97-98p3)
K20D04P 2020 DP4 (small asteroid, arc=23 days, H=25.2 ~31m, close passer, NHATS target) from M57 Obs. (March 19.07-08p3) and Schiaparelli Obs. (March 21.07p5)
Observations of close-passing objects
K20G00N 2020 GN (arc=6 days, H=27.4 ~11m, NHATS target) from Schwarzschild Obs. (April 4.08p3)
K20G00C 2020 GC (arc=2 days, H=26.5 ~17m) from Great Shefford Obs. (April 4.01p4) and Schwarzschild Obs. (April 4.06p3)
K20F06L 2020 FL6 (arc=8 days, H=25.3 ~29m) from Schiaparelli Obs. (March 29.02-03p2) and Aorangi Iti Obs. (April 3.50p5)
K20F05W 2020 FW5 (arc=4 days, H=25.6 ~26m) from Schiaparelli Obs. (March 29.04-05p2)
K20F04H 2020 FH4 (arc=10 days, H=28.4 ~7m, NHATS target) from PS1 (April 3.59-62p4)
K20F02W 2020 FW2 (Q=4.001 AU, arc=24 days, H=24.1 ~51m) from PS1 (April 3.54-57p3)
K20F01F 2020 FF1 (arc=7 days, H=27.9 ~9m) from Schiaparelli Obs. (March 20.93-95p3)
K19Y03R 2019 YR3 (arc=2 days, H=24.5 ~43m) from SATINO-1 (2019 Dec. 28.95-96p2)
K19Y00E 2019 YE (arc=6 days, H=26.7 ~15m) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 Dec. 21.42p1 at G=22.21)
Observation campaigns (NHATS targets, radar support)
K20F06Y 2020 FY6 (arc=6 days, H=25.1 ~32m, NHATS) from MLS (April 3.26-28p4 at G=21.4-22.2)
K20F04L 2020 FL4 (arc=10 days, H=27.0 ~13m, NHATS) from MLS (April 2.31-33p4 & 3.34-35p4) and Visnjan Obs. (April 3.02-03p3)
K06F36H 2006 FH36 (arc=3 opp, H=22.9 ~89m, NHATS) from Aorangi Iti Obs. (April 3.47-48p5)
J0166 190166 2005 UP156 (radar) from MASTER-II Tunka (April 2.80-81p2)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20F06W 2020 FW6 (arc=5 days, H=23.1 ~81m) from MLS (April 3.34-35p3)
K20F06Q 2020 FQ6 (arc=13 days, H=25.1 ~32m) from Schwarzschild Obs. (April 4.13p3)
K20F03K 2020 FK3 (arc=11 days, H=25.4 ~28m) from Schiaparelli Obs. (March 28.99-01p3)
K20F02O 2020 FO2 (arc=70 days, H=22.4 ~112m) from M57 Obs. (April 3.90-96p4)
K20F00P 2020 FP (arc=8 days, H=25.7 ~25m) from Schiaparelli Obs. (March 21.04-06p2)
K20D02A 2020 DA2 (arc=44 days, H=22.8 ~93m) from Astronomical Research Obs. Westfield (April 2.17-19p3 at V=22.1-4)
K20B12Y 2020 BY12 (arc=73 days, H=23.7 ~62m) from ARO Westfield (April 2.32-33p3 at V=22.1)
K15F35C 2015 FC35 (arc=3 opp, H=22.1 ~129m) from Schiaparelli Obs. (March 21.08-09p3)
K20F07A 2020 FA7 (arc=18 days, H=22.0 ~135m) from Mountainville Obs. (April 3.12p1 & 3.16-17p2)
K20F04W 2020 FW4 (arc=11 days, H=21.8 ~148m) from the Catalina Sky Survey (CSS) (April 3.27-29p4), Mountainville Obs. (April 3.28-29p3), ATLAS Mauna Loa (April 3.45-48p4), Paus Obs. (April 3.81-82p3), and M57 Obs. (April 3.82-85p4)
Observations of other objects
K20F06R 2020 FR6 (arc=10 days, H=21.1 ~204m) from MLS (April 3.23-24p4)
K20F06E 2020 FE6 (arc=13 days, H=19.8 ~371m) from MLS (April 3.39-40p4)
K20F03W 2020 FW3 (arc=13 days, H=21.3 ~186m) from MLS (April 3.41-42p4)
K20F02J 2020 FJ2 (arc=17 days, H=20.0 ~339m) from Steward Mt. Lemmon Sta. (April 4.14-16p4)
K20D04M 2020 DM4 (arc=37 days, H=21.7 ~155m) from Paus Obs. (April 3.84-85p3)
K20D03T 2020 DT3 (arc=46 days, H=21.2 ~195m) from Castelmartini Obs. (April 2.79p3)
K20B14P 2020 BP14 (arc=66 days, H=18.5 ~676m) from Aorangi Iti Obs. (April 3.38-39p5)
K20B12S 2020 BS12 (q=0.379 AU, arc=71 days, H=20.1 ~323m) from MLS (April 3.23-25p4)
K20B08G 2020 BG8 (arc=87 days, H=21.1 ~204m) from Schiaparelli Obs. (March 20.97-99p2)
K20A02Z 2020 AZ2 (arc=88 days, H=21.3 ~186m) from MLS (April 3.23-24p4)
K19W06B 2019 WB6 (arc=130 days, H=20.6 ~257m) from CSS (April 3.25-26p4)
K19U00O 2019 UO (Q=4.343 AU, arc=2 opp, H=20.1 ~323m) from MLS (April 3.17-19p4)
K19S10N 2019 SN10 (arc=215 days, H=21.3 ~186m) from Schiaparelli Obs. (March 20.91-92p2)
K17F90E 2017 FE90 (arc=3 opp, H=19.5 ~426m) from MLS (April 3.34-35p4)
K17E02S 2017 ES2 (arc=3 opp, H=19.4 ~446m) from Schiaparelli Obs. (March 21.00-02p2)
K15M66O 2015 MO66 (arc=4 opp, H=20.1 ~323m) from ARO Westfield (April 2.23-24p3 at V=22.1-3)
K15FC0F 2015 FF120 (i=47.7°, arc=4 opp, H=19.3 ~467m) from PS1 (April 3.59-62p3)
K15FB8T 2015 FT118 (arc=3 opp, H=20.4 ~282m) from MLS (April 3.43-45p4)
K14UJ2A 2014 UA192 (arc=3 opp, H=19.3 ~467m) from MLS (April 3.41-42p4)
K13G07Y 2013 GY7 (arc=3 opp, H=20.4 ~282m) from Mirasteilas Obs. (April 3.85-86p3)
K12Q50E 2012 QE50 (arc=5 opp, H=18.9 ~562m) from MLS (April 3.29-30p4)
K12E02A 2012 EA2 (arc=4 opp, H=19.1 ~513m) from MLS (April 3.34-35p4)
K11F02Z 2011 FZ2 (Q=4.750 AU, arc=4 opp, H=17.5 ~1.07 km) from ATLAS Haleakala (April 3.61-63p4)
K10X11D 2010 XD11 (q=0.326 AU, Q=4.098 AU, arc=4 opp, H=18.0 ~851m) from CSS (April 3.21-22p4) and Mirasteilas Obs. (April 3.83-84p3)
K10U07E 2010 UE7 (arc=4 opp, H=19.3 ~467m) from ARO Westfield (April 2.09p4) and CSS (April 3.18-20p3)
K09K08K 2009 KK8 (arc=3 opp, H=18.7 ~616m) from MLS (April 3.39-40p4)
K06K40D 2006 KD40 (arc=4 opp, H=18.5 ~676m) from ARO Westfield (April 2.15-16p3 at V=22.0-22.2)
K06G02X 2006 GX2 (arc=4 opp, H=20.6 ~257m) from PS1 (April 3.54-57p3)
K04R10Y 2004 RY10 (arc=3 opp, H=21.1 ~204m) from Schiaparelli Obs. (March 20.80-81p2)
K03D16A 2003 DA16 (i=45.7°, Q=4.216 AU, arc=6 opp, H=17.8 ~933m) from ARO Westfield (April 2.28-29p3 at V=21.8-22.4)
J98H03N 1998 HN3 (Q=5.029 AU, arc=4 opp, H=18.3 ~741m) from MLS (April 3.41-42p4)
r9940 539940 2017 HW1 from CSS (April 3.38-40p4) and ATLAS Mauna Loa (April 3.53-57p4)
p3125 513125 1997 GC32 from MLS (April 3.36-37p4)
p0073 510073 2010 JF88 from PS1 (April 3.59-62p4)
o0094 500094 2012 BC20 from WISE (April 1.97p1, 2.10p1, 2.23p1, 2.36p1, 2.49p1, 2.68p1 & 2.82p1) and CSS (April 3.19-20p2)
n2143 492143 2013 OE from Castelmartini Obs. (April 2.91p3)
k7835 467835 2010 SS3 from MLS (April 3.29-30p4)
i8818 448818 2011 UU20 from Castelmartini Obs. (April 2.92p3)
h6324 436324 2010 GZ6 from MLS (April 3.36-37p4)
h3992 433992 2000 HD74 from PS1 (April 3.54-57p4)
d0929 390929 2005 GP21 from MLS (April 3.29-30p3)
b3428 373428 1999 TC5 from ATLAS Haleakala (April 3.44-46p3)
X3555 333555 2005 VY17 from ATLAS Mauna Loa (April 3.54-57p4)
X0659 330659 2008 GG2 from MLS (April 3.30-32p4)
U6462 306462 1999 RC32 from MLS (April 3.15-17p4)
P2793 252793 2002 FW5 from CSS (April 3.25-27p4)
O3298 243298 2008 EN82 from MLS (April 3.20-22p4)
N1792 231792 2000 DH8 from CSS (April 3.43-44p3)
J9003 199003 2005 WJ56 from MLS (April 3.11-13p4)
I6822 186822 2004 FE31 from MLS (April 3.46-47p4)
H5189 175189 2005 EC224 from MLS (April 3.39-40p4)
G9675 169675 2002 JM97 from MLS (April 3.50-51p4)
G2422 162422 2000 EV70 from MLS (April 3.43-45p4)
F4589 154589 2003 MX2 from MLS (April 3.43-45p4)
F4555 154555 2003 HA from ATLAS Haleakala (April 3.58-60p7)
F2941 152941 2000 FM10 from MLS (April 3.36-37p4)
F2561 152561 1991 RB from MLS (April 3.23-24p4)
E3381 143381 2003 BC21 from MLS (April 3.20-22p4)
E1765 141765 2002 MP3 from MLS (April 3.11-13p4)
E1495 141495 2002 EZ11 from MLS (April 3.39-40p4)
D9289 139289 2001 KR1 from CSS (April 3.32-33p4)
D7199 137199 1999 KX4 from ATLAS Mauna Loa (April 3.54-55p3)
D7108 137108 1999 AN10 from MLS (April 3.13-14p3)
D7064 137064 1998 WP5 from Mirasteilas Obs. (April 3.87-88p3)
D6923 136923 1998 JH2 from MLS (April 3.43-45p4)
B5052 115052 2003 RD6 from MLS (April 3.15-17p4)
A6589 106589 2000 WN107 from Nomad Obs. (April 1.72-73p6) and Castelmartini Obs. (April 2.78-79p3)
90367 90367 2003 LC5 from CSS (April 3.21-22p4)
89830 89830 2002 CE from CSS (April 3.18-20p4)
86067 86067 1999 RM28 from CSS (April 3.34-35p4)
68350 68350 2001 MK3 from PS2 (April 3.53-55p3)
68278 68278 2001 FC7 from MLS (April 3.43-45p4)
68063 68063 2000 YJ66 from MLS (April 3.26-28p4)
66251 66251 1999 GJ2 from MLS (April 3.43-45p4)
65690 65690 1991 DG from Al-Fulaij Obs. (March 31.67p3) and Castelmartini Obs. (April 2.86p3)
52768 52768 1998 OR2 from Al-Fulaij Obs. (March 31.66p4), Castelmartini Obs. (April 2.85p3), program code 1 via Kuban State Univ. Obs. (April 3.71-94p46), San Vito Obs. (April 3.79-81p6), Cancelada Obs. (April 3.82-86p37), and El Guijo Obs. (April 3.86-90p3)
36284 36284 2000 DM8 from Castelmartini Obs. (April 2.83p3)
30825 30825 1990 TG1 from Castelmartini Obs. (April 2.80-81p3)
18109 18109 2000 NG11 from MLS (April 3.41-42p4)
11405 11405 1999 CV3 from Castelmartini Obs. (April 2.80p3)
11066 11066 Sigurd (1992 CC1) from MLS (April 3.15-17p4)
09400 9400 1994 TW1 from CSS (April 3.13-15p4)
07753 7753 1988 XB from MLS (April 3.43-45p4)
07358 7358 Oze (1995 YA3) from MLS (April 3.26-28p4)
04055 4055 Magellan (1985 DO2) from ATLAS Haleakala (April 3.62-64p4)
01866 1866 Sisyphus (1972 XA) from CSS (April 3.14-15p4)

MPEC 2020-G28 - "11:59 UT" - 2020 GR

K20G00R 2020 GR (small asteroid, H=25.6 ~26m) was picked up at 0527 UT on 2 April by MLS, observing it at April 2.23-24p4 and 4.43-44p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.34-35p4 & 3.22-23p4) and Visnjan Obs. (April 2.95p3).

MPEC 2020-G27 - "11:55 UT" - 2020 GQ

K20G00Q 2020 GQ (small asteroid, Earth MOID=9.3 LD, H=26.5 ~17m) was picked up at 1009 UT on 2 April by MLS, observing it at April 2.42-44p3 and 2.49p3. This detection was confirmed by Visnjan Obs. (April 3.09-10p3), Tebbutt Obs. (April 3.27-31p3), Steward Mt. Lemmon Sta. (April 3.45p4), and Schwarzschild Obs. (April 4.09p3).

MPEC 2020-G26 - "11:50 UT" - 2020 GP

K20G00P 2020 GP (small asteroid, H=24.5 ~43m) was picked up at 0728 UT on 2 April by MLS, observing it at April 2.31-33p4. This detection was confirmed by PS1 (April 2.42-43p2), Steward Mt. Lemmon Sta. (April 2.45-46p3, 3.27-28p3 & 4.47-48p3), Schiaparelli Obs. (April 3.09-10p2), Pittichova/Table Mtn. (April 3.42-44p2), and Schwarzschild Obs. (April 4.08p3).

MPEC 2020-G25 - "11:44 UT" - 2020 GO

K20G00O 2020 GO (Earth MOID=3.9 LD, H=28.2 ~8m) was picked up at 0557 UT on 2 April by MLS, observing it at April 2.25-26p3 and 4.45-46p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 2.36p4 & 3.24-25p3), Visnjan Obs. (April 2.96-97p3), and Great Shefford Obs. (April 2.98-01p3).

MPEC 2020-G24 - "11:12 UT" - 2005 GZ110

K05GB0Z 2005 GZ110 (small asteroid, H=22.7 ~98m) from PS1 (March 21.38-40p3), MLS (April 2.14-15p3), Steward Mt. Lemmon Sta. (April 2.18p3, 2.29p3 & 3.16-18p4), and Visnjan Obs. (April 2.80-81p3)

MPEC 2020-G23 - "03:58 UT" - 2020 GN

K20G00N 2020 GN (Earth MOID=4.5 LD, H=27.5 ~11m, NHATS target) was picked up at 0916 UT on 2 April by MLS, observing it at April 2.39-40p3 and 3.43p4. This detection was confirmed by PS2 (March 29.42-44p3), Steward Mt. Lemmon Sta. (April 2.47-48p3), St. Pardon de Conques Obs. (April 4.01-05p3), and Visnjan Obs. (April 4.09p3).

Observers on 4 April '20

A total of 33 observers appear in today's MPECs.

Code	Observer / observatory
`C97`	Al-Fulaij Obs., 2 in MPEC 2020-G29 -- 65690, 52768
`R57`	Aorangi Iti Obs. in New Zealand, 4 in MPEC 2020-G29 -- 2020 GH, 2020 FL6, 2020 BP14, 2006 FH36
`H21`	Astronomical Research Obs. Westfield in Illinois, 6 in MPEC 2020-G29 -- 2020 DA2, 2020 BY12, 2015 MO66, 2010 UE7, 2006 KD40, 2003 DA16
`T05`	ATLAS Haleakala in Hawaii, 4 in MPEC 2020-G29 -- 2011 FZ2, 373428, 154555, 4055
`T08`	ATLAS Mauna Loa in Hawaii, 4 in MPEC 2020-G29 -- 2020 FW4, 539940, 333555, 137199
`Z36`	Cancelada Obs., 1 in MPEC 2020-G29 -- 52768
`160`	Castelmartini Obs. in Italy, 9 in MPEC 2020-G29 -- 2020 DT3, 65690, 52768, 492143, 448818, 36284, 30825, 11405, 106589
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPEC 2020-G29 -- 2020 FW4, 2019 WB6, 2010 XD11, 2010 UE7, 90367, 89830, 86067, 539940, 500094, 252793, 231792, 139289, 9400, 1866
`309&`	Marco Micheli via Cerro Paranal in Chile, 1 in MPEC 2020-G41 -- 2019 DS1
`J27`	El Guijo Obs. in Spain, 1 in MPEC 2020-G29 -- 52768
`J95`	Great Shefford Obs. in England, 2 in MPECs 2020-G25 & 2020-G29 -- 2020 GO, 2020 GC
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-G29 -- 52768
`K38`	M57 Obs. in Italy, 3 in MPEC 2020-G29 -- 2020 FW4, 2020 FO2, 2020 DP4
`C94`	MASTER-II Tunka in Russia, 1 in MPEC 2020-G29 -- 190166
`B67`	Mirasteilas Obs. in Switzerland, 3 in MPEC 2020-G29 -- 2013 GY7, 2010 XD11, 137064
`V01`	Mountainville Obs. in Utah, 2 in MPEC 2020-G29 -- 2020 FW4, 2020 FA7
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 61 in MPECs 2020-G23, 2020-G24, 2020-G25, 2020-G26, 2020-G27, 2020-G28, 2020-G29, 2020-G30, 2020-G31, 2020-G32, 2020-G33, 2020-G34, 2020-G35, 2020-G36, 2020-G37, 2020-G38 & 2020-G39 -- 2020 GZ, 2020 GY, 2020 GX, 2020 GW, 2020 GV, 2020 GU, 2020 GT, 2020 GS, 2020 GR, 2020 GQ, 2020 GP, 2020 GO, 2020 GN, 2020 GA1, 2020 FY6, 2020 FW6, 2020 FW3, 2020 FV6, 2020 FR6, 2020 FL4, 2020 FE6, 2020 BS12, 2020 AZ2, 2019 UO, 2017 FE90, 2016 FT14, 2015 FT118, 2014 UA192, 2012 QE50, 2012 EA2, 2009 KK8, 2005 GZ110, 1998 HN3, 68278, 68063, 66251, 513125, 467835, 436324, 390929, 330659, 306462, 243298, 199003, 186822, 18109, 175189, 169675, 162422, 154589, 152941, 152561, 143381, 141765, 141495, 137108, 136923, 115052, 11066, 7753, 7358
`L76`	Nomad Obs., 1 in MPEC 2020-G29 -- 106589
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 9 in MPECs 2020-G24, 2020-G26, 2020-G29 & 2020-G40 -- 2020 GP, 2020 FW2, 2020 FH4, 2018 NM4, 2015 FF120, 2006 GX2, 2005 GZ110, 510073, 433992
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 4 in MPECs 2020-G23, 2020-G29, 2020-G36 & 2020-G39 -- 2020 GN, 2020 GA1, 2016 FT14, 68350
`B49`	Paus Obs. in Spain, 2 in MPEC 2020-G29 -- 2020 FW4, 2020 DM4
`233`	San Vito Obs. in Italy, 1 in MPEC 2020-G29 -- 52768
`C95`	SATINO-1 in France, 1 in MPEC 2020-G29 -- 2019 YR3
`204`	Schiaparelli Obs. in Italy, 13 in MPECs 2020-G26 & 2020-G29 -- 2020 GP, 2020 FW5, 2020 FP, 2020 FL6, 2020 FK3, 2020 FF1, 2020 FE2, 2020 DP4, 2020 BG8, 2019 SN10, 2017 ES2, 2015 FC35, 2004 RY10
`033`	Schwarzschild Obs. in Germany, 7 in MPECs 2020-G26, 2020-G27, 2020-G29, 2020-G30 & 2020-G36 -- 2020 GS, 2020 GQ, 2020 GP, 2020 GN, 2020 GC, 2020 FQ6, 2016 FT14
`I93`	St. Pardon de Conques Obs. in France, 1 in MPEC 2020-G23 -- 2020 GN
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 17 in MPECs 2020-G23, 2020-G24, 2020-G25, 2020-G26, 2020-G27, 2020-G28, 2020-G29, 2020-G30, 2020-G31, 2020-G32, 2020-G33, 2020-G34, 2020-G35, 2020-G36, 2020-G37, 2020-G38 & 2020-G39 -- 2020 GZ, 2020 GY, 2020 GX, 2020 GW, 2020 GV, 2020 GU, 2020 GT, 2020 GS, 2020 GR, 2020 GQ, 2020 GP, 2020 GO, 2020 GN, 2020 GA1, 2020 FJ2, 2016 FT14, 2005 GZ110
`673!`	Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 2 in MPECs 2020-G26 & 2020-G30 -- 2020 GS, 2020 GP
`858`	Tebbutt Obs. in New Mexico, 1 in MPEC 2020-G27 -- 2020 GQ
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-G29 -- 2019 YE
`T09`	UH/Tholen NEO Follow-Up Subaru Telescope in Hawaii, 1 in MPEC 2020-G41 -- 2019 DS1
`L01`	Visnjan Obs. in Croatia, 12 in MPECs 2020-G23, 2020-G24, 2020-G25, 2020-G27, 2020-G28, 2020-G29, 2020-G30, 2020-G31, 2020-G32, 2020-G33, 2020-G35 & 2020-G36 -- 2020 GX, 2020 GV, 2020 GU, 2020 GT, 2020 GS, 2020 GR, 2020 GQ, 2020 GO, 2020 GN, 2020 FL4, 2016 FT14, 2005 GZ110
`C51`	WISE in Earth polar orbit, 1 in MPEC 2020-G29 -- 500094

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

Impact Risk Monitoring on 4 April '20

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2350 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 GX	JPL Sentry	1620	2061-2079	4	1.1651e-09	-8.09	-8.43	0	JPL: Computed at 08:02 today Pacific time based on 17 observations spanning 1.9208 days (2020-Apr-02.29064 to 2020-Apr-04.21142). Diameter approximately 0.055 km. from weighted mean H=23.95.

2020 FV6	JPL Sentry	1620	2078-2092	3	1.2997e-07	-5.79	-5.98	0	JPL: Computed at 06:58 today Pacific time based on 31 observations spanning 4.8934 days (2020-Mar-29.51039 to 2020-Apr-03.40378). Diameter approximately 0.088 km. from weighted mean H=22.93.

2019 DS1	JPL Sentry	1620	R E M O V E D						JPL: Risk listing removed at 1607 UTC today

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 4 April '20

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

1620

Noted that JPL Sentry has removed 2019 DS1 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 FV6 risk assessment - see above
Noted that JPL Sentry has posted 2020 GX as an impact risk - see above
Grabbed MPEC 2020-G24 - 2005 GZ110 - see above
Grabbed MPEC 2020-G25 - 2020 GO - see above
Grabbed MPEC 2020-G26 - 2020 GP - see above
Grabbed MPEC 2020-G27 - 2020 GQ - see above
Grabbed MPEC 2020-G28 - 2020 GR - see above
Grabbed MPEC 2020-G29 - Daily Orbit Update - see above
Grabbed MPEC 2020-G30 - 2020 GS - see above
Grabbed MPEC 2020-G31 - 2020 GT - see above
Grabbed MPEC 2020-G32 - 2020 GU - see above
Grabbed MPEC 2020-G33 - 2020 GV - see above
Grabbed MPEC 2020-G34 - 2020 GW - see above
Grabbed MPEC 2020-G35 - 2020 GX - see above
Grabbed MPEC 2020-G36 - 2016 FT14 - see above
Grabbed MPEC 2020-G37 - 2020 GY - see above
Grabbed MPEC 2020-G38 - 2020 GZ - see above
Grabbed MPEC 2020-G39 - 2020 GA1 - see above
Grabbed MPEC 2020-G40 - 2018 NM4 - see above
Grabbed MPEC 2020-G41 - 2019 DS1 - see above

0430

Grabbed MPEC 2020-G23 - 2020 GN - see above

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