Contents  on 4 April '20

Asteroid/Comet Connection (A/CC) Resources:

The latest A/CC news is available via framed access, RSS news feed 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-G41 - "15:01 UT" - 2019 DS1


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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

Observers  on 4 April '20

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

CodeObserver / observatory
C97Al-Fulaij Obs., 2 in MPEC 2020-G29 -- 65690, 52768
R57Aorangi Iti Obs. in New Zealand, 4 in MPEC 2020-G29 -- 2020 GH, 2020 FL6, 2020 BP14, 2006 FH36
H21Astronomical Research Obs. Westfield in Illinois, 6 in MPEC 2020-G29 -- 2020 DA2, 2020 BY12, 2015 MO66, 2010 UE7, 2006 KD40, 2003 DA16
T05ATLAS Haleakala in Hawaii, 4 in MPEC 2020-G29 -- 2011 FZ2, 373428, 154555, 4055
T08ATLAS Mauna Loa in Hawaii, 4 in MPEC 2020-G29 -- 2020 FW4, 539940, 333555, 137199
Z36Cancelada Obs., 1 in MPEC 2020-G29 -- 52768
160Castelmartini Obs. in Italy, 9 in MPEC 2020-G29 -- 2020 DT3, 65690, 52768, 492143, 448818, 36284, 30825, 11405, 106589
703Catalina 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
J27El Guijo Obs. in Spain, 1 in MPEC 2020-G29 -- 52768
J95Great Shefford Obs. in England, 2 in MPECs 2020-G25 & 2020-G29 -- 2020 GO, 2020 GC
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-G29 -- 52768
K38M57 Obs. in Italy, 3 in MPEC 2020-G29 -- 2020 FW4, 2020 FO2, 2020 DP4
C94MASTER-II Tunka in Russia, 1 in MPEC 2020-G29 -- 190166
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2020-G29 -- 2013 GY7, 2010 XD11, 137064
V01Mountainville Obs. in Utah, 2 in MPEC 2020-G29 -- 2020 FW4, 2020 FA7
G96Mt. 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
L76Nomad Obs., 1 in MPEC 2020-G29 -- 106589
F51Pan-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
F52Pan-STARRS 2 (PS2) in Hawaii, 4 in MPECs 2020-G23, 2020-G29, 2020-G36 & 2020-G39 -- 2020 GN, 2020 GA1, 2016 FT14, 68350
B49Paus Obs. in Spain, 2 in MPEC 2020-G29 -- 2020 FW4, 2020 DM4
233San Vito Obs. in Italy, 1 in MPEC 2020-G29 -- 52768
C95SATINO-1 in France, 1 in MPEC 2020-G29 -- 2019 YR3
204Schiaparelli 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
033Schwarzschild 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
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2020-G23 -- 2020 GN
I52Steward 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
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-G27 -- 2020 GQ
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-G29 -- 2019 YE
T09UH/Tholen NEO Follow-Up Subaru Telescope in Hawaii, 1 in MPEC 2020-G41 -- 2019 DS1
L01Visnjan 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
C51WISE 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 GXJPL Sentry16202061-207941.1651e-09-8.09-8.430JPL: 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 FV6JPL Sentry16202078-209231.2997e-07-5.79-5.980JPL: 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 DS1JPL Sentry1620R E M O V E DJPL: 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.

1620Noted 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
0430Grabbed MPEC 2020-G23 - 2020 GN - see above