2020-04-17 Tracking News

Contents on 17 April '20

Radar Astrometry -- one object
IAU Minor Planet Center
- NEOCP Activity -- 59 listings
- New MPECs -- nine MPECs
Observers -- 73 observers
Impact Risk Monitoring -- four objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1118 risk-listed objects, 89 have had news in the last 31 days. Updated at 1608 UTC on 17 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.

Radar Astrometry on 17 April '20

Radar observation of one object

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:

Data update noted at 1600 UTC when the database was dated 17 April

52768 1998 OR2 from Arecibo (April 16.96 range & 16.99 range)

Photometry and some astrometry is needed for upcoming radar targets. See Arecibo and Goldstone schedules.

NEOCP Activity on 17 April '20

The MPC's NEO Confirmation Page has 59 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 59 objects listed. Of these, 36 were "one nighters." So far The Tracking News has counted a total of 72 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 17 April '20

Minor Planet Electronic Circulars

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

MPEC 2020-H05 time-stamped "01:26 UT" - 2020 GZ2 - see below
MPEC 2020-H06 time-stamped "04:22 UT" - Comet P/2020 G1 (Pimentel) - see below
MPEC 2020-H07 time-stamped "06:59 UT" - 2020 GA3 - see below
MPEC 2020-H08 time-stamped "10:10 UT" - 2020 GB3 - see below
MPEC 2020-H09 time-stamped "10:14 UT" - 2020 GC3 - see below
MPEC 2020-H10 time-stamped "10:15 UT" - 2020 GD3 - see below
MPEC 2020-H11 time-stamped "11:30 UT" - 2020 GE3 - see below
MPEC 2020-H12 time-stamped "12:05 UT" - Daily Orbit Update - see below
MPEC 2020-H13 time-stamped "12:33 UT" - 2020 GF3

MPEC 2020-H13 - "12:33 UT" - 2020 GF3

K20G03F 2020 GF3 (H=19.6 ~407m) was picked up at 1411 UT on 3 April by Pan-STARRS 1 (PS1), observing it at April 3.59-63p4. This detection was confirmed by the Catalina Sky Survey (CSS) (April 16.37-39p4), Steward Obs. Mt. Lemmon Station (April 16.47-48p3 & 17.17-18p4), KLENOT (April 16.83p11), Guidestar Obs. (April 16.83-86p3), Oberfrauendorf Obs. (April 16.91-92p4), Schwarzschild Obs. (April 16.91-92p3 & 17.13p4), Clixby Obs. (April 16.92-93p4), Schiaparelli Obs. (April 17.01-02p3), Pascoli Obs. (April 17.03-05p3), and Cordell-Lorenz Obs. (April 17.34-38p3).

<< DOU on 17 April '20 >> MPEC 2020-H12 - "12:05 UT" - Daily Orbit Update

Observations of risk-listed objects
K20G02Z 2020 GZ2 (small asteroid, arc=2 days, H=27.9 ~9m, close passer) from Visnjan Obs. (April 17.03-04p3) and Pascoli Obs. (April 17.06-07p3)
K19Q00F 2019 QF (small asteroid, arc=14 days, H=28.0 ~9m, close passer) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 Sept. 4.56p1 at G=23.92)
Observations of recently (no longer) risk-listed objects
K20F06V 2020 FV6 (small asteroid, Q=4.486 AU, arc=18 days, H=23.0 ~85m) from the Mt. Lemmon Survey (MLS) (April 16.41-44p4), ATLAS Mauna Loa (April 16.51-57p7), and Woogaroo Obs. (April 16.64-66p3)
K20F06M 2020 FM6 (almost small, arc=23 days, H=21.9 ~141m) from MLS (April 16.39-41p4), Woogaroo Obs. (April 16.60-62p3), and Petit Jean Mtn. South Obs. (PJMSO) (April 17.29-30p6)
Observations of close-passing objects
K20G02N 2020 GN2 (arc=4 days, H=25.6 ~26m) from Lumezzane Obs. (April 15.87p3), Northolt Branch Obs. (April 15.90-91p4), the Zwicky Transient Facility (ZTF) (April 16.24-26p4 & 16.31p2), Kiso Obs. (April 16.44p4), and Schwarzschild Obs. (April 16.89p3)
K20G02A 2020 GA2 (i=42.8°, arc=7 days, H=21.2 ~195m) from ATLAS Mauna Loa (April 16.25-28p4) and Woogaroo Obs. (April 16.51-52p3)
K20G01Y 2020 GY1 (arc=11 days, H=26.6 ~16m) from PS1 (April 16.50-53p4)
K20A01Y 2020 AY1 (arc=45 days, H=25.2 ~31m, NHATS target) from SATINO-1 (Jan. 5.97-99p4)
K19W03Q 2019 WQ3 (arc=52 days, H=22.8 ~93m) from LiShan Obs. (2019 Dec. 2.59-65p18)
K11G44M 2011 GM44 (i=49.3°, q=0.376 AU, arc=5 opp, H=19.5 ~426m) from ATLAS Mauna Loa (April 16.26-29p4)
c8945 388945 2008 TZ3 from Castelmartini Obs. (April 16.00-01p3) and CSS (April 16.35-36p3)
Observation campaigns (NHATS targets, radar support)
K20C01J 2020 CJ1 (arc=86 days, H=23.8 ~59m, NHATS) from Astronomical Research Obs. Westfield (April 16.36p3 at V=21.7-22.1)
K20B16R 2020 BR16 (arc=114 days, H=24.2 ~49m, NHATS) from Pan-STARRS 2 (PS2) (April 16.45-49p3)
K19T02F 2019 TF2 (arc=2 opp, H=26.4 ~18m, NHATS) from ARO Westfield (April 16.34p3 at V=22.1-6)
K15R02H 2015 RH2 (arc=4 opp, H=22.0 ~135m, NHATS) from MLS (April 16.14-16p4 at G=21.9-22.4)
K12E08M 2012 EM8 (arc=2 opp, H=24.7 ~39m, NHATS) from PS1 (April 16.40-43p3)
K09O05S 2009 OS5 (arc=3 opp, H=24.5 ~43m, NHATS) from CSS (April 16.31-32p4)
K06F36H 2006 FH36 (arc=3 opp, H=23.0 ~85m, NHATS) from ATLAS Mauna Loa (April 16.41-46p6)
i3103 443103 2013 WT67 (radar) from MLS (April 16.12-13p4)
J0166 190166 2005 UP156 (radar) from Castelmartini Obs. (April 15.91p3), Lumezzane Obs. (April 15.93p4), Tentlingen Obs. (April 15.95-98p4), and CSS (April 17.26-28p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20G02X 2020 GX2 (arc=2 days, H=26.5 ~17m) from Steward Mt. Lemmon Sta. (April 17.17-18p4)
K20G02T 2020 GT2 (arc=3 days, H=25.2 ~31m) from Northolt Branch Obs. (April 15.92p3), Castelmartini Obs. (April 15.96p3), KLENOT (April 16.81p7), Peschiera del Garda Obs. (April 16.83p5), Saarbruecken Rastpfuhl Obs. (April 16.84-86p2), Oberfrauendorf Obs. (April 16.89-90p7), Schwarzschild Obs. (April 16.89p3), and Steward Mt. Lemmon Sta. (April 17.16-17p4)
K20G02M 2020 GM2 (arc=5 days, H=23.6 ~65m) from KLENOT (April 16.82p4) and Steward Mt. Lemmon Sta. (April 17.19p4)
K20G02J 2020 GJ2 (Q=4.681 AU, arc=24 days, H=24.7 ~39m) from Castelmartini Obs. (April 15.99p3) and CSS (April 16.35-36p4)
K20G01T 2020 GT1 (Q=4.068 AU, arc=13 days, H=24.9 ~35m) from ARO Westfield (April 16.29-30p3 at V=21.8-22.1)
K20G01S 2020 GS1 (arc=13 days, H=22.2 ~123m) from MLS (April 16.18-20p4)
K20G01D 2020 GD1 (arc=14 days, H=23.1 ~81m) from PS1 (April 16.50-53p4)
K20G00U 2020 GU (arc=14 days, H=24.8 ~37m) from ARO Westfield (April 16.16p3 at V=22.0-22.1)
K20G00P 2020 GP (arc=14 days, H=24.5 ~43m) from ARO Westfield (April 16.20-21p3 at V=22.2-4)
K20F07A 2020 FA7 (arc=32 days, H=22.1 ~129m) from Castelmartini Obs. (April 15.89p3), Tentlingen Obs. (April 15.89-92p4), CSS (April 16.26-27p4), and Mirasteilas Obs. (April 16.81-84p5)
K20F03A 2020 FA3 (arc=26 days, H=23.1 ~81m) from PJMSO (April 17.25-26p6)
K20F02O 2020 FO2 (arc=83 days, H=22.4 ~112m) from PJMSO (April 17.26-27p6)
K20F01J 2020 FJ1 (arc=31 days, H=25.4 ~28m) from ARO Westfield (April 16.26-27p3 at V=22.4-7)
K19W03R 2019 WR3 (arc=90 days, H=22.8 ~93m) from LiShan Obs. (2019 Dec. 2.51-58p21 & 2019 Dec. 3.58-61p15)
K17U44Z 2017 UZ44 (arc=2 opp, H=22.1 ~129m) from Korea Microlensing Telescope Network SSO (KMTNet-SSO) (March 30.54-60p9) and iTelescope Obs. Siding Spring (April 13.40-48p3 & 14.41-48p3)
K09Q36C 2009 QC36 (arc=2 opp, H=22.2 ~123m) from Lumezzane Obs. (April 15.90p2), CSS (April 16.31-32p4), and PJMSO (April 17.27-28p6)
K00E26M 2000 EM26 (arc=3 opp, H=22.5 ~107m) from MLS (April 16.16-18p4)
K20F04X 2020 FX4 (arc=166 days, H=21.8 ~148m) from PS2 (April 16.41-43p3)
K19X01L 2019 XL1 (arc=135 days, H=22.0 ~135m) from MLS (April 16.34-36p4)
K04R84E 2004 RE84 (arc=3 opp, H=21.9 ~141m) from MLS (April 16.23-25p4)
Observations of other objects
K20G02U 2020 GU2 (arc=4 days, H=21.2 ~195m) from Steward Mt. Lemmon Sta. (April 17.44p4)
K20G02S 2020 GS2 from Steward Mt. Lemmon Sta. (April 17.18p4)
K20G02D 2020 GD2 (arc=166 days, H=20.8 ~234m) from Castelmartini Obs. (April 16.02-03p3), Oberfrauendorf Obs. (April 16.87-88p6), QOS Obs. (April 16.88-89p6), and Peschiera del Garda Obs. (April 16.94-95p6)
K20F06R 2020 FR6 (arc=24 days, H=21.4 ~178m) from PS2 (April 17.27-29p3)
K20F06F 2020 FF6 (arc=24 days, H=20.6 ~257m) from ARO Westfield (April 16.31-33p3 at V=21.6-22.2)
K20F06E 2020 FE6 (arc=26 days, H=19.9 ~355m) from PS1 (April 16.50-53p3)
K20F06B 2020 FB6 (arc=23 days, H=20.5 ~269m) from CSS (April 16.39-41p4) and PJMSO (April 17.32-33p6)
K20F05V 2020 FV5 from program code 1 via Kitab Obs. (April 16.86p6)
K20F02J 2020 FJ2 (arc=30 days, H=20.1 ~323m) from Steward Mt. Lemmon Sta. (April 17.19-21p3)
K20D04M 2020 DM4 (arc=51 days, H=21.7 ~155m) from Woogaroo Obs. (April 16.44-48p3), KLENOT (April 16.80-81p5), Squirrel Valley Obs. (April 17.04-06p4), Foxfire Village Obs. (April 17.05-09p3), and CSS (April 17.22-24p4)
K20B16U 2020 BU16 (arc=3 opp, H=19.3 ~467m) from PS1 (April 17.25-28p4)
K20B12S 2020 BS12 (q=0.379 AU, arc=83 days, H=20.1 ~323m) from ARO Westfield (April 16.13-14p3 at V=22.3-5)
K20B11H 2020 BH11 (Q=4.050 AU, arc=129 days, H=21.4 ~178m) from ARO Westfield (April 16.11-12p3 at V=22.1-5)
K20B05O 2020 BO5 (arc=87 days, H=21.0 ~214m) from ATLAS Mauna Loa (April 16.40-43p4)
K20A02Z 2020 AZ2 (arc=101 days, H=21.3 ~186m) from MLS (April 16.19-20p4)
K19X01G 2019 XG1 (Q=4.163 AU, arc=2 opp, H=19.2 ~490m) from Castelmartini Obs. (April 15.92p3), CSS (April 16.31-32p4), and PJMSO (April 17.24-25p6)
K19U00O 2019 UO (Q=4.343 AU, arc=2 opp, H=20.1 ~323m) from MLS (April 16.14-16p4)
K19G20J 2019 GJ20 (arc=2 opp, H=21.0 ~214m) from PS1 (April 16.50-54p3)
K18V00X 2018 VX (arc=2 opp, H=21.1 ~204m) from MLS (April 15.35-36p3) and Steward Mt. Lemmon Sta. (April 15.42-45p3 & 16.30-31p4)
K18B03N 2018 BN3 (arc=5 opp, H=20.4 ~282m) from WISE (April 13.74p1, 13.80p1, 14.06p1, 14.19p1 & 14.59p1)
K17F90E 2017 FE90 (arc=3 opp, H=19.6 ~407m) from MLS (April 16.19-20p4) and ATLAS Mauna Loa (April 16.43-45p4)
K17E02S 2017 ES2 (arc=3 opp, H=19.4 ~446m) from ATLAS Mauna Loa (April 16.27-29p3) and Woogaroo Obs. (April 16.41-43p3)
K17D36S 2017 DS36 (arc=2 opp, H=20.9 ~224m) from PS1 (April 17.25-29p4)
K16W01E 2016 WE1 (arc=4 opp, H=19.6 ~407m) from PS1 (April 16.30-34p3)
K16U80T 2016 UT80 (arc=3 opp, H=19.0 ~537m) from CSS (April 16.19-21p3)
K16L51F 2016 LF51 (arc=4 opp, H=18.7 ~616m) from PS1 (April 16.50-53p4)
K16GM0T 2016 GT220 (arc=6 opp, H=17.8 ~933m) from PS2 (April 16.35-38p3)
K16AE7X 2016 AX147 (arc=4 opp, H=17.8 ~933m) from CSS (April 17.12-14p4)
K15O78X 2015 OX78 (i=40.4°, arc=3 opp, H=19.9 ~355m) from LiShan Obs. (Jan. 21.68-71p4)
K15FX2P 2015 FP332 (i=36.5°, Q=4.790 AU, arc=5 opp, H=17.3 ~1.17 km) from Mirasteilas Obs. (April 16.98-05p4)
K15FB8T 2015 FT118 (arc=3 opp, H=20.5 ~269m) from Visnjan Obs. (April 17.11-12p4) and PJMSO (April 17.30-31p5)
K15DJ7Z 2015 DZ197 (arc=3 opp, H=18.5 ~676m) from PS1 (April 16.50-53p3)
K14V06N 2014 VN6 (arc=4 opp, H=18.9 ~562m) from ARO Westfield (April 16.18-19p3 at V=22.4)
K14H04O 2014 HO4 (arc=4 opp, H=19.2 ~490m) from PS1 (April 16.59-60p3)
K13O05N 2013 ON5 (arc=5 opp, H=18.7 ~616m) from PS2 (April 16.49-51p2)
K13G07Y 2013 GY7 (arc=3 opp, H=20.4 ~282m) from CSS (April 16.31-32p4)
K12Q10Q 2012 QQ10 (arc=3 opp, H=20.9 ~224m) from PS1 (April 16.50-52p3)
K11F02Z 2011 FZ2 (Q=4.750 AU, arc=4 opp, H=17.5 ~1.07 km) from Castelmartini Obs. (April 16.07p3)
K10ED5C 2010 EC135 (arc=3 opp, H=20.1 ~323m) from PJMSO (April 17.31-32p3)
K09V00Z 2009 VZ (arc=3 opp, H=21.3 ~186m) from ARO Westfield (April 16.08-10p4 at V=22.0-22.4)
K09K08K 2009 KK8 (arc=3 opp, H=18.6 ~645m) from PS1 (April 15.38-40p3)
K07H82X 2007 HX82 (Q=4.101 AU, arc=3 opp, H=20.4 ~282m) from PS2 (April 16.46-48p3)
K06Y01U 2006 YU1 (Q=4.110 AU, arc=2 opp, H=21.0 ~214m) from MLS (April 16.16-18p4 at G=21.5-22.5)
K06P17Y 2006 PY17 (arc=6 opp, H=19.2 ~490m) from MLS (April 16.26-27p4)
K05UF7O 2005 UO157 (Q=4.494 AU, arc=4 opp, H=18.3 ~741m) from MLS (April 16.12-13p3)
K05L07V 2005 LV7 (arc=4 opp, H=19.1 ~513m) from MLS (April 16.19-20p4)
K04R10Y 2004 RY10 (arc=3 opp, H=21.1 ~204m) from PS1 (April 16.40-44p4)
K04F29F 2004 FF29 (arc=6 opp, H=18.1 ~812m) from MLS (April 16.49-50p4)
K02V69P 2002 VP69 (arc=10 opp, H=17.9 ~891m) from MLS (April 16.12-14p4)
K01G02S 2001 GS2 (arc=3 opp, H=20.6 ~257m) from MLS (April 16.28-29p4), ATLAS Mauna Loa (April 16.47-49p4), and PJMSO (April 17.29p6)
K00WE8O 2000 WO148 (arc=4 opp, H=20.5 ~269m) from PS1 (April 16.50-54p4)
r9940 539940 2017 HW1 from Berthelot Obs. (April 15.86-91p3)
p9354 519354 2011 KR12 from MLS (April 16.30-32p4)
p5446 515446 2013 UG5 from MLS (April 16.42-44p4)
p0262 510262 2011 HJ61 from MLS (April 16.32-34p4)
n4880 494880 2008 SQ7 from Lumezzane Obs. (April 15.96-97p3)
n4706 494706 2005 GL9 from MLS (April 16.44-46p4)
n2143 492143 2013 OE from CSS (April 17.17-18p4)
l7524 477524 2010 EH43 from CSS (April 16.19-20p3)
k8541 468541 2006 QA31 from PS2 (April 16.56-59p3)
k3282 463282 2012 HR15 from ZTF (April 16.26p1 & 16.31-37p3)
k3257 463257 2012 GG1 from PS2 (April 16.35-37p3)
i8818 448818 2011 UU20 from ZTF (April 16.18-21p4) and CSS (April 17.19-21p4)
h7316 437316 2013 OS3 from LiShan Obs. (Jan. 21.60-62p15 & 29.55-56p5)
h6324 436324 2010 GZ6 from Castelmartini Obs. (April 16.01p3) and CSS (April 16.35-37p4)
g5450 425450 2010 EV45 from ZTF (April 16.24-25p2 & 16.30-36p3)
f5746 415746 2000 JN10 from PS1 (April 16.40-44p3)
f3989 413989 2007 EL88 from Lumezzane Obs. (April 15.84p4), Berthelot Obs. (April 15.91-94p2), and CSS (April 16.19-20p4)
d0929 390929 2005 GP21 from MLS (April 16.19-20p3)
c8838 388838 2008 EZ5 from Herrenberg Obs. (April 11.80-81p3) and CSS (April 17.19-21p4)
b3428 373428 1999 TC5 from Castelmartini Obs. (April 15.97p3)
a3626 363626 2004 RA11 from PS2 (April 16.41-43p3)
Y9928 349928 2009 WD106 from PS1 (April 17.25-28p4)
X9714 339714 2005 ST1 from MLS (April 16.21-22p4)
W9275 329275 1999 VP6 from PS2 (April 16.35-38p4)
V8050 318050 2004 FC32 from Lumezzane Obs. (April 15.97p3), Castelmartini Obs. (April 15.99p3), and CSS (April 16.33-34p3)
V5098 315098 2007 EX from ATLAS Mauna Loa (April 16.33-35p4)
V1044 311044 2004 BB103 from LiShan Obs. (2019 Dec. 3.76-79p11)
R7142 277142 2005 LG8 from MLS (April 16.28-29p4)
R6732 276732 2004 EV9 from CSS (April 16.21-23p4)
R6274 276274 2002 SS41 from Lumezzane Obs. (April 15.93-94p2) and CSS (April 16.33-34p4)
R5976 275976 2001 XV10 from MLS (April 16.32-33p4)
R4138 274138 2008 FU6 from CSS (April 17.20-21p4)
Q7494 267494 2002 JB9 from Castelmartini Obs. (April 16.06p3)
O8926 248926 2006 WZ2 from CSS (April 16.19-20p4)
N7551 237551 2000 WQ19 from Lumezzane Obs. (April 15.88-89p2) and CSS (April 16.30-32p4)
N1792 231792 2000 DH8 from ZTF (April 14.43-47p3 & 16.43-47p2)
L9527 219527 2001 QK142 from MLS (April 16.37-38p3)
K3217 203217 2001 FX9 from MLS (April 16.45-46p4)
J3178 193178 2000 PK5 from MLS (April 16.30-31p4)
J2563 192563 1998 WZ6 from LiShan Obs. (2019 Dec. 3.62-67p25 & 2019 Dec. 21.59-61p9) and Castelmartini Obs. (April 16.11p3)
I6822 186822 2004 FE31 from MLS (April 16.42-44p4)
G9675 169675 2002 JM97 from ATLAS Mauna Loa (April 16.56-59p3)
G4400 164400 2005 GN59 from MLS (April 16.36-38p4)
G3696 163696 2003 EB50 from LiShan Obs. (2019 Nov. 20.75-77p6 & 2019 Dec. 3.67-70p23)
G3679 163679 2002 XG84 from MLS (April 16.30-32p3)
G3373 163373 2002 PZ39 from LiShan Obs. (Feb. 3.61-62p4, 3.69p1 & 12.53-54p2)
G3243 163243 2002 FB3 from Lumezzane Obs. (April 15.82p3)
G2723 162723 2000 VM2 from LiShan Obs. (2019 Nov. 20.62-64p12 & 2019 Nov. 25.52-55p21)
G2422 162422 2000 EV70 from MLS (April 16.37-38p4)
G2210 162210 1999 SM5 from CSS (April 17.19-20p2)
G2157 162157 1999 CV8 from ARO Westfield (April 16.38-40p4 at V=22.1-3)
G2063 162063 1997 EH29 from PS1 (April 16.50-53p3)
F9635 159635 2002 CZ46 from PS1 (April 16.50-53p3)
F9560 159560 2001 TO103 from PS1 (April 16.40-43p4)
F9454 159454 2000 DJ8 from LiShan Obs. (Jan. 29.66-68p5)
F4993 154993 2005 EA94 from ZTF (April 16.23-25p2 & 16.30-36p3), CSS (April 16.26-28p3), and PS1 (April 16.40-43p4)
F4589 154589 2003 MX2 from MLS (April 16.37-38p4)
F4229 154229 2002 JN97 from Lumezzane Obs. (April 15.94-95p2)
F2941 152941 2000 FM10 from MLS (April 16.28-29p4)
F2561 152561 1991 RB from MLS (April 16.16-18p4)
E4411 144411 2004 EW9 from ATLAS Mauna Loa (April 16.34-36p4)
E2555 142555 2002 TB58 from ATLAS Mauna Loa (April 16.37-39p4)
E1765 141765 2002 MP3 from MLS (April 16.12-14p4)
E1525 141525 2002 FV5 from CSS (April 16.30-32p4)
D8847 138847 2000 VE62 from Foxfire Village Obs. (April 17.05-09p3) and CSS (April 17.15-17p3)
D7911 137911 2000 AB246 from MLS (April 16.41-43p4)
D7199 137199 1999 KX4 from LiShan Obs. (Jan. 29.59-65p31)
D7170 137170 1999 HF1 from Castelmartini Obs. (April 16.10p3)
D7064 137064 1998 WP5 from Berthelot Obs. (April 15.97p1, 16.02p1 & 16.07p1), Castelmartini Obs. (April 16.02p3), Tentlingen Obs. (April 16.02-03p3), Guidestar Obs. (April 16.93-94p3), and CSS (April 17.24-26p4 & 17.31-32p3)
D6923 136923 1998 JH2 from MLS (April 16.37-38p4)
D6618 136618 1994 CN2 from Lumezzane Obs. (April 15.91-92p2), Castelmartini Obs. (April 15.93p3), and PS2 (April 17.30-32p3)
B5052 115052 2003 RD6 from Castelmartini Obs. (April 15.88p3) and CSS (April 17.21-23p4)
A3067 103067 1999 XA143 from LiShan Obs. (Jan. 29.68-69p12 & Feb. 11.51-54p17)
99935 99935 2002 AV4 from ATLAS Mauna Loa (April 16.47-49p4)
86667 86667 2000 FO10 from MLS (April 16.41-44p4)
86067 86067 1999 RM28 from PS2 (April 17.40-43p4)
85628 85628 1998 KV2 from Castelmartini Obs. (April 16.03p3) and Tentlingen Obs. (April 16.06-08p3)
85275 85275 1994 LY from Castelmartini Obs. (April 16.05-06p3) and PS2 (April 16.55-59p4)
85236 85236 1993 KH from LiShan Obs. (2019 Nov. 20.73-74p4, 2019 Dec. 2.66-69p21 & 2019 Dec. 3.70-72p12)
68350 68350 2001 MK3 from Castelmartini Obs. (April 16.04-05p3) and CSS (April 16.44-45p4)
68278 68278 2001 FC7 from CSS (April 17.32p1)
68063 68063 2000 YJ66 from MLS (April 16.19-20p3)
54686 54686 2001 DU8 from PS1 (April 16.40-44p4)
54401 54401 2000 LM from ATLAS Mauna Loa (April 16.40-43p4)
53409 53409 1999 LU7 from MLS (April 16.38-40p4 at G=21.7-22.9)
52768 52768 1998 OR2 from Hirao Obs. (April 7.56p3 & 14.50-51p3), program code 1 via Kuban State Univ. Obs. (April 16.70-86p47), Nastro Verde Obs. (April 16.76-78p4), Gravina Obs. (April 16.78-90p12), KLENOT (April 16.80p16), Saarbruecken Rastpfuhl Obs. (April 16.80-82p2), Nonndorf Obs. (April 16.82-83p3), QOS Obs. (April 16.85p8), Pascoli Obs. (April 16.87p3), West Park Obs. (April 16.87-89p2), Glyn Marsh Obs. (April 16.90-92p3), and Cordell-Lorenz Obs. (April 17.16-27p16)
40267 40267 1999 GJ4 from ZTF (April 15.16-19p2 & 16.20p2), Tentlingen Obs. (April 15.84-87p4), and CSS (April 16.17-19p4)
35107 35107 1991 VH from CSS (April 16.21-23p4) and Foxfire Village Obs. (April 17.05-09p3)
34613 34613 2000 UR13 from CSS (April 16.16-18p3)
31345 31345 1998 PG from MLS (April 16.23-25p4 at G=20.2-22.2)
19764 19764 2000 NF5 from ATLAS Mauna Loa (April 16.61-63p4)
18172 18172 2000 QL7 from CSS (April 17.15-16p4)
18109 18109 2000 NG11 from MLS (April 16.34-36p4)
16064 16064 Davidharvey (1999 RH27) from MLS (April 16.30-31p4)
11066 11066 Sigurd (1992 CC1) from PS2 (April 16.25-27p3) and CSS (April 17.21-23p4)
08566 8566 1996 EN from CSS (April 16.19-21p4)
07753 7753 1988 XB from MLS (April 16.37-38p4)
07088 7088 Ishtar (1992 AA) from CSS (April 16.28-32p8)
06050 6050 Miwablock (1992 AE) from ATLAS Mauna Loa (April 16.54-57p4)
06047 6047 1991 TB1 from CSS (April 16.16-18p4)
05626 5626 1991 FE from CSS (April 16.19-21p4)
04954 4954 Eric (1990 SQ) from ATLAS Mauna Loa (April 16.43-45p4)
04581 4581 Asclepius (1989 FC) from Lumezzane Obs. (April 6.86-87p2) and CSS (April 16.24-25p4)
01917 1917 Cuyo (1968 AA) from PS2 (April 16.50-54p4)
01866 1866 Sisyphus (1972 XA) from ZTF (April 15.17p1, 15.22p1 & 16.22p2) and Lumezzane Obs. (April 15.81-82p4)
01864 1864 Daedalus (1971 FA) from CSS (April 16.21-23p4)
01627 1627 Ivar (1929 SH) from Foxfire Village Obs. (April 17.04-08p3)

MPEC 2020-H11 - "11:30 UT" - 2020 GE3

K20G03E 2020 GE3 (small asteroid, Earth MOID=7.1 LD, H=26.1 ~20m) was picked up at 0818 UT on 15 April by MLS, observing it at April 15.35-36p4 at G=21.4-22.3 and 15.47p3 at G=21.3-8. This detection was confirmed by Schwarzschild Obs. (April 16.02-03p4), ARO Westfield (April 16.22-23p3), and Visnjan Obs. (April 16.99-00p3).

MPEC 2020-H10 - "10:15 UT" - 2020 GD3

K20G03D 2020 GD3 (small asteroid, H=27.3 ~12m) was picked up at 0750 UT on 15 April by MLS, observing it at April 15.33-34p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 15.40-41p3 & 16.48-49p3), Schwarzschild Obs. (April 16.01-02p4), Great Shefford Obs. (April 16.02-06p3), and Visnjan Obs. (April 17.02p2).

MPEC 2020-H09 - "10:14 UT" - 2020 GC3

K20G03C 2020 GC3 (small asteroid, H=23.6 ~65m) was picked up at 0950 UT on 15 April by MLS, observing it at April 15.41-43p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 15.47-48p4), Schwarzschild Obs. (April 16.04-05p3 & 17.12p3), ARO Westfield (April 16.29-30p3), and PS2 (April 16.45-49p3).

MPEC 2020-H08 - "10:10 UT" - 2020 GB3

K20G03B 2020 GB3 (small asteroid, Earth MOID=9.9 LD, H=26.5 ~17m) was picked up at 0851 UT on 15 April by MLS, observing it at April 15.37-38p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 15.44-46p4), Schwarzschild Obs. (April 15.98p3, 16.06p4 & 17.08-09p2), ARO Westfield (April 16.28-29p3), and Visnjan Obs. (April 17.04-05p3).

MPEC 2020-H07 - "06:59 UT" - 2020 GA3

K20G03A 2020 GA3 (risk listed, Earth MOID=1.1 LD, H=25.1 ~32m) was picked up at 0950 UT on 15 April by MLS, observing it at April 15.41-43p3. This detection was confirmed by Steward Mt. Lemmon Sta. (April 15.49p3), Schwarzschild Obs. (April 15.96p3, 16.09-10p2 & 17.08p3), Visnjan Obs. (April 16.04p4), ARO Westfield (April 16.31-32p3), and Pascoli Obs. (April 17.08p3).

MPEC 2020-H06 - "04:22 UT" - Comet P/2020 G1 (Pimentel)

PK20G010 P/2020 G1 (Pimentel) (q=0.511 AU, Q=7.909 AU, TP=2020 Mar. 17.82288 TT) was picked up at 2133 UT on 13 April by SONEAR, observing it at April 13.90-91p3. This detection was confirmed by Wiggins Obs. (April 14.13-14p6 & 17.13-14p6), Gisborne Obs. (April 14.28-33p12), Geyserland Obs. (April 14.32-33p4), Mike Mattiazzo via iTelescope Obs. Siding Spring (April 14.36p6), Hidetaka Sato via iTelescope Obs. Siding Spring (April 14.37p3), M. Suzuki via iTelescope Obs. Siding Spring (April 14.38p2), Nirmal Paul via iTelescope Obs. Siding Spring (April 14.38-39p5), Rokycany Obs. (April 14.80-81p9), Chante-Perdrix Obs. (April 14.81-82p3), Tentlingen Obs. (April 14.82-83p3), Great Shefford Obs. (April 14.86-87p3 & 15.86p3), Galilei Obs. (April 14.94-96p5 & 15.95p3), Cruz del Sur Obs. (April 14.95-96p2), El Catalejo Obs. (April 14.96-97p4 & 16.99-01p4), B. Lutkenhoner via Slooh.com Chile Obs. (April 14.99-01p3), iTelObs-SSO (April 15.36p3), Birkdale Obs. (April 15.37-38p4), Ernesto Guido via iTelescope Obs. Siding Spring (April 15.38-39p2), Castelmartini Obs. (April 15.78-79p3 & 16.79-80p3), ISON Castelgrande Obs. (April 15.79p4), Forti Obs. (April 15.80-81p3), Lumezzane Obs. (April 15.80p2), Sormano2 Obs. (April 15.80p3), Sormano Obs. (April 15.81p3), Schiaparelli Obs. (April 15.81-82p5), 29PREMOTE Obs. (April 15.82-83p5), GiaGa Obs. (April 15.82-83p3), Olmen Obs. (April 15.83-84p4), program code 2 via Slooh.com Canary Islands Obs. (April 15.86p5), Campo dos Amarais Obs. (April 15.94-96p6 & 16.91-92p6), Cordell-Lorenz Obs. (April 16.05-10p5 & 17.05-10p7), Steward Mt. Lemmon Sta. (April 16.12p3), Marian Urbanik via iTelescope Obs. Siding Spring (April 16.37p3), Swan Hill Obs. (April 16.39p4), Corona Borealis Obs. (April 16.61p3), ROASTERR-1 (April 16.77-79p3), Montelupo Obs. (April 16.79-80p3), and Bernezzo Obs. (April 16.82p2).

MPEC 2020-H05 - "01:26 UT" - 2020 GZ2

K20G02Z 2020 GZ2 (risk listed, Earth MOID=0.4 LD, H=27.9 ~9m, close passer) was picked up at 0922 UT on 15 April by MLS, observing it at April 15.39-40p3 and 16.46-47p4. This detection was confirmed by Steward Mt. Lemmon Sta. (April 15.46p4) and Schwarzschild Obs. (April 16.92p4).

Observers on 17 April '20

A total of 73 observers appear in today's MPECs.

Code	Observer / observatory
`L27`	29PREMOTE Obs., 1 in MPEC 2020-H06 -- P/2020 G1
`251`	Arecibo in Puerto Rico, 1 in radar -- 52768
`H21`	Astronomical Research Obs. Westfield in Illinois, 16 in MPECs 2020-H07, 2020-H08, 2020-H09, 2020-H11 & 2020-H12 -- 2020 GU, 2020 GT1, 2020 GP, 2020 GE3, 2020 GC3, 2020 GB3, 2020 GA3, 2020 FJ1, 2020 FF6, 2020 CJ1, 2020 BS12, 2020 BH11, 2019 TF2, 2014 VN6, 2009 VZ, 162157
`T08`	ATLAS Mauna Loa in Hawaii, 17 in MPEC 2020-H12 -- 2020 GA2, 2020 FV6, 2020 BO5, 2017 FE90, 2017 ES2, 2011 GM44, 2006 FH36, 2001 GS2, 99935, 54401, 315098, 19764, 169675, 144411, 142555, 6050, 4954
`C77`	Bernezzo Obs. in Italy, 1 in MPEC 2020-H06 -- P/2020 G1
`L54`	Berthelot Obs., 3 in MPEC 2020-H12 -- 539940, 413989, 137064
`Q80`	Birkdale Obs. in Queensland, 1 in MPEC 2020-H06 -- P/2020 G1
`X74`	Campo dos Amarais Obs., 1 in MPEC 2020-H06 -- P/2020 G1
`160`	Castelmartini Obs. in Italy, 21 in MPECs 2020-H06 & 2020-H12 -- 2020 GT2, 2020 GJ2, 2020 GD2, P/2020 G1, 2020 FA7, 2019 XG1, 2011 FZ2, 85628, 85275, 68350, 436324, 388945, 373428, 318050, 267494, 192563, 190166, 137170, 137064, 136618, 115052
`703`	Catalina Sky Survey (CSS) in Arizona, 44 in MPECs 2020-H12 & 2020-H13 -- 2020 GJ2, 2020 GF3, 2020 FB6, 2020 FA7, 2020 DM4, 2019 XG1, 2016 UT80, 2016 AX147, 2013 GY7, 2009 QC36, 2009 OS5, 68350, 68278, 492143, 477524, 448818, 436324, 413989, 40267, 388945, 388838, 35107, 34613, 318050, 276732, 276274, 274138, 248926, 237551, 190166, 18172, 162210, 154993, 141525, 138847, 137064, 115052, 11066, 8566, 7088, 6047, 5626, 4581, 1864
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2020-H06 -- P/2020 G1
`Z99`	Clixby Obs. in England, 1 in MPEC 2020-H13 -- 2020 GF3
`850`	Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2020-H06, 2020-H12 & 2020-H13 -- 2020 GF3, P/2020 G1, 52768
`N55`	Corona Borealis Obs. in Tibet, 1 in MPEC 2020-H06 -- P/2020 G1
`I39`	Cruz del Sur Obs. in Argentina, 1 in MPEC 2020-H06 -- P/2020 G1
`I48`	El Catalejo Obs. in Argentina, 1 in MPEC 2020-H06 -- P/2020 G1
`K83`	Forti Obs., 1 in MPEC 2020-H06 -- P/2020 G1
`W46`	Foxfire Village Obs., 4 in MPEC 2020-H12 -- 2020 DM4, 35107, 138847, 1627
`X31`	Galilei Obs., 1 in MPEC 2020-H06 -- P/2020 G1
`E89`	Geyserland Obs. in New Zealand, 1 in MPEC 2020-H06 -- P/2020 G1
`203`	GiaGa Obs. in Italy, 1 in MPEC 2020-H06 -- P/2020 G1
`E94`	Gisborne Obs. in New Zealand, 1 in MPEC 2020-H06 -- P/2020 G1
`Z30`	Glyn Marsh Obs., 1 in MPEC 2020-H12 -- 52768
`K73`	Gravina Obs. in Italy, 1 in MPEC 2020-H12 -- 52768
`J95`	Great Shefford Obs. in England, 2 in MPECs 2020-H06 & 2020-H10 -- 2020 GD3, P/2020 G1
`A17`	Guidestar Obs. in Germany, 2 in MPECs 2020-H12 & 2020-H13 -- 2020 GF3, 137064
`240`	Herrenberg Obs. in Germany, 1 in MPEC 2020-H12 -- 388838
`P87`	Hirao Obs., 1 in MPEC 2020-H12 -- 52768
`L28`	ISON Castelgrande Obs., 1 in MPEC 2020-H06 -- P/2020 G1
`Q62`	iTelescope Obs. Siding Spring in New South Wales, 2 in MPECs 2020-H06 & 2020-H12 -- P/2020 G1, 2017 UZ44
`Q620`	Ernesto Guido in Italy via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-H06 -- P/2020 G1
`Q621`	Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-H06 -- P/2020 G1
`Q622`	Marian Urbanik in Slovakia via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-H06 -- P/2020 G1
`Q62;`	Mike Mattiazzo in Victoria via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-H06 -- P/2020 G1
`Q62[`	M. Suzuki in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-H06 -- P/2020 G1
`Q62{`	Nirmal Paul in India via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-H06 -- P/2020 G1
`381`	Kiso Obs. in Japan, 1 in MPEC 2020-H12 -- 2020 GN2
`1861`	program code 1 via Kitab Obs., 1 in MPEC 2020-H12 -- 2020 FV5
`246`	KLENOT in the Czech Republic, 5 in MPECs 2020-H12 & 2020-H13 -- 2020 GT2, 2020 GM2, 2020 GF3, 2020 DM4, 52768
`Q57`	Korea Microlensing Telescope Network SSO in New South Wales, 1 in MPEC 2020-H12 -- 2017 UZ44
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-H12 -- 52768
`O85`	LiShan Obs., 13 in MPEC 2020-H12 -- 2019 WR3, 2019 WQ3, 2015 OX78, 85236, 437316, 311044, 192563, 163696, 163373, 162723, 159454, 137199, 103067
`130`	Lumezzane Obs. in Italy, 14 in MPECs 2020-H06 & 2020-H12 -- 2020 GN2, P/2020 G1, 2009 QC36, 494880, 413989, 318050, 276274, 237551, 190166, 163243, 154229, 136618, 4581, 1866
`B67`	Mirasteilas Obs. in Switzerland, 2 in MPEC 2020-H12 -- 2020 FA7, 2015 FP332
`108`	Montelupo Obs. in Italy, 1 in MPEC 2020-H06 -- P/2020 G1
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 53 in MPECs 2020-H05, 2020-H07, 2020-H08, 2020-H09, 2020-H10, 2020-H11 & 2020-H12 -- 2020 GZ2, 2020 GS1, 2020 GE3, 2020 GD3, 2020 GC3, 2020 GB3, 2020 GA3, 2020 FV6, 2020 FM6, 2020 AZ2, 2019 XL1, 2019 UO, 2018 VX, 2017 FE90, 2015 RH2, 2006 YU1, 2006 PY17, 2005 UO157, 2005 LV7, 2004 RE84, 2004 FF29, 2002 VP69, 2001 GS2, 2000 EM26, 86667, 68063, 53409, 519354, 515446, 510262, 494706, 443103, 390929, 339714, 31345, 277142, 275976, 219527, 203217, 193178, 186822, 18109, 164400, 163679, 162422, 16064, 154589, 152941, 152561, 141765, 137911, 136923, 7753
`C82`	Nastro Verde Obs. in Italy, 1 in MPEC 2020-H12 -- 52768
`C47`	Nonndorf Obs. in Austria, 1 in MPEC 2020-H12 -- 52768
`Z80`	Northolt Branch Obs. in England, 2 in MPEC 2020-H12 -- 2020 GT2, 2020 GN2
`G34`	Oberfrauendorf Obs. in Germany, 3 in MPECs 2020-H12 & 2020-H13 -- 2020 GT2, 2020 GF3, 2020 GD2
`C23`	Olmen Obs. in Belgium, 1 in MPEC 2020-H06 -- P/2020 G1
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 23 in MPECs 2020-H12 & 2020-H13 -- 2020 GY1, 2020 GF3, 2020 GD1, 2020 FE6, 2020 BU16, 2019 GJ20, 2017 DS36, 2016 WE1, 2016 LF51, 2015 DZ197, 2014 HO4, 2012 QQ10, 2012 EM8, 2009 KK8, 2004 RY10, 2000 WO148, 54686, 415746, 349928, 162063, 159635, 159560, 154993
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 16 in MPECs 2020-H09 & 2020-H12 -- 2020 GC3, 2020 FX4, 2020 FR6, 2020 BR16, 2016 GT220, 2013 ON5, 2007 HX82, 86067, 85275, 468541, 463257, 363626, 329275, 136618, 11066, 1917
`K63`	Pascoli Obs. in Italy, 4 in MPECs 2020-H07, 2020-H12 & 2020-H13 -- 2020 GZ2, 2020 GF3, 2020 GA3, 52768
`A53`	Peschiera del Garda Obs. in Italy, 2 in MPEC 2020-H12 -- 2020 GT2, 2020 GD2
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 9 in MPEC 2020-H12 -- 2020 FO2, 2020 FM6, 2020 FB6, 2020 FA3, 2019 XG1, 2015 FT118, 2010 EC135, 2009 QC36, 2001 GS2
`L18`	QOS Obs., 2 in MPEC 2020-H12 -- 2020 GD2, 52768
`L04`	ROASTERR-1 in Romania, 1 in MPEC 2020-H06 -- P/2020 G1
`K61`	Rokycany Obs. in the Czech Republic, 1 in MPEC 2020-H06 -- P/2020 G1
`L40`	Saarbruecken Rastpfuhl Obs., 2 in MPEC 2020-H12 -- 2020 GT2, 52768
`C95`	SATINO-1 in France, 1 in MPEC 2020-H12 -- 2020 AY1
`204`	Schiaparelli Obs. in Italy, 2 in MPECs 2020-H06 & 2020-H13 -- 2020 GF3, P/2020 G1
`033`	Schwarzschild Obs. in Germany, 9 in MPECs 2020-H05, 2020-H07, 2020-H08, 2020-H09, 2020-H10, 2020-H11, 2020-H12 & 2020-H13 -- 2020 GZ2, 2020 GT2, 2020 GN2, 2020 GF3, 2020 GE3, 2020 GD3, 2020 GC3, 2020 GB3, 2020 GA3
`G402`	program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-H06 -- P/2020 G1
`W883`	B. Lutkenhoner in Germany via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-H06 -- P/2020 G1
`Y00`	SONEAR in Brazil, 1 in MPEC 2020-H06 -- P/2020 G1
`587`	Sormano Obs. in Italy, 1 in MPEC 2020-H06 -- P/2020 G1
`L06`	Sormano2 Obs. in Italy, 1 in MPEC 2020-H06 -- P/2020 G1
`W34`	Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-H12 -- 2020 DM4
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 14 in MPECs 2020-H05, 2020-H06, 2020-H07, 2020-H08, 2020-H09, 2020-H10, 2020-H12 & 2020-H13 -- 2020 GZ2, 2020 GX2, 2020 GU2, 2020 GT2, 2020 GS2, 2020 GM2, 2020 GF3, 2020 GD3, 2020 GC3, 2020 GB3, 2020 GA3, P/2020 G1, 2020 FJ2, 2018 VX
`Q38`	Swan Hill Obs., 1 in MPEC 2020-H06 -- P/2020 G1
`A16`	Tentlingen Obs. in Switzerland, 6 in MPECs 2020-H06 & 2020-H12 -- P/2020 G1, 2020 FA7, 85628, 40267, 190166, 137064
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-H12 -- 2019 QF
`L01`	Visnjan Obs. in Croatia, 6 in MPECs 2020-H07, 2020-H08, 2020-H10, 2020-H11 & 2020-H12 -- 2020 GZ2, 2020 GE3, 2020 GD3, 2020 GB3, 2020 GA3, 2015 FT118
`Z92`	West Park Obs. in England, 1 in MPEC 2020-H12 -- 52768
`718`	Wiggins Obs. in Utah, 1 in MPEC 2020-H06 -- P/2020 G1
`C51`	WISE in Earth polar orbit, 1 in MPEC 2020-H12 -- 2018 BN3
`Q78`	Woogaroo Obs., 5 in MPEC 2020-H12 -- 2020 GA2, 2020 FV6, 2020 FM6, 2020 DM4, 2017 ES2
`I41`	Zwicky Transient Facility (ZTF) in southern California, 8 in MPEC 2020-H12 -- 2020 GN2, 463282, 448818, 425450, 40267, 231792, 154993, 1866

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

Impact Risk Monitoring on 17 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 GA3	NEODyS	1601	2052-2118	47	5.06e-06	-5.41	-6.25	0	NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2020-04-15.411 to 2020-04-17.084."
2020 GA3	JPL Sentry	1600	2054-2119	24	9.5902772e-06	-5.16	-5.77	0	JPL: Computed at 01:07 today Pacific time based on 24 observations spanning 1.6734 days (2020-Apr-15.41021 to 2020-Apr-17.08364). Diameter approximately 0.032 km. from weighted mean H=25.11.

2020 GZ2	NEODyS	1601	2049-2083	17	8.0e-05	-5.35	-5.37	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-04-15.392 to 2020-04-17.070."
2020 GZ2	JPL Sentry	1600	2049-2082	21	9.584006e-05	-5.27	-5.31	0	JPL #2 for the day: Computed at 07:15 today Pacific time based on 21 observations spanning 1.6786 days (2020-Apr-15.39078 to 2020-Apr-17.06941). Diameter approximately 0.009 km. from weighted mean H=27.90.

2020 GY2	NEODyS	1601	2093-2118	11	1.87e-06	-5.23	-5.45	0	NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2020-04-15.350 to 2020-04-16.946."
2020 GY2	JPL Sentry	0140	2093-2118	13	1.9031496e-06	-5.22	-5.50	0	JPL: Computed at 17:58 April 16th Pacific time based on 33 observations spanning 1.5963 days (2020-Apr-15.34915 to 2020-Apr-16.94546). Diameter approximately 0.060 km. from weighted mean H=23.74.

2019 QF	JPL Sentry	1600	2069-2077	2	3.64e-07	-7.89	-8.13	0	JPL: Computed at 06:59 today Pacific time based on 28 observations spanning 14.324 days (2019-Aug-21.23858 to 2019-Sep-04.562772). Diameter approximately 0.009 km. from weighted mean H=27.91.
2019 QF	NEODyS	1600	2062-2118	4	1.79e-07	-8.20	-8.42	0	NEODyS: "Based on 28 optical observations (of which 1 are rejected as outliers) from 2019-08-21.239 to 2019-09-04.564."

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 17 April '20

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

1600	Noted that JPL Sentry has updated its 2019 QF risk assessment - see above Noted that NEODyS has updated its 2019 QF risk assessment - see above Noted that JPL Sentry has posted 2020 GA3 as an impact risk - see above Noted that NEODyS has posted 2020 GA3 as an impact risk - see above Noted that NEODyS has posted 2020 GY2 as an impact risk - see above Noted that JPL Sentry has updated its 2020 GZ2 risk assessment - see above Noted that NEODyS has posted 2020 GZ2 as an impact risk - see above Grabbed MPEC 2020-H07 - 2020 GA3 - see above Grabbed MPEC 2020-H08 - 2020 GB3 - see above Grabbed MPEC 2020-H09 - 2020 GC3 - see above Grabbed MPEC 2020-H10 - 2020 GD3 - see above Grabbed MPEC 2020-H11 - 2020 GE3 - see above Grabbed MPEC 2020-H12 - Daily Orbit Update - see above Grabbed MPEC 2020-H13 - 2020 GF3 - see above Noted Radar Astrometry database update - see above
0503	Grabbed MPEC 2020-H06 - Comet P/2020 G1 (Pimentel) - see above
0430	Noted that JPL Sentry has posted 2020 GZ2 as an impact risk - see above
0140	Noted that JPL Sentry has posted 2020 GY2 as an impact risk - see above Grabbed MPEC 2020-H05 - 2020 GZ2 - see above

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