Contents  on 12 May '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 12 May '20

The MPC's NEO Confirmation Page has 41 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 41 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 46 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 May '20

Minor Planet Electronic Circulars

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


MPEC 2020-J56 - "15:00 UT" - 2017 CR32


MPEC 2020-J55 - "14:38 UT" - 2020 JV


<< DOU on 12 May '20 >>  MPEC 2020-J54 - "12:06 UT" - Daily Orbit Update

Observers  on 12 May '20

A total of 28 observers appear in today's MPECs.

CodeObserver / observatory
E23Arcadia Obs. in New South Wales, 1 in MPEC 2020-J55 -- 2020 JV
H21Astronomical Research Obs. Westfield in Illinois, 32 in MPEC 2020-J54 -- 2020 JR, 2020 JH, 2020 JD, 2020 HT2, 2020 HS6, 2020 HC6, 2020 HB6, 2020 GF3, 2020 FB6, 2020 DP2, 2020 DE3, 2020 CJ1, 2020 BM6, 2019 YK4, 2019 XY, 2019 XN2, 2019 WM6, 2017 GU6, 2015 FP332, 2014 NF64, 2013 DL1, 2010 UH7, 2010 GF25, 2010 EC135, 68350, 436030, 388838, 35107, 333555, 214088, 137199, 106589
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2020-J54 -- 137199
T08ATLAS Mauna Loa in Hawaii, 2 in MPECs 2020-J54 & 2020-J55 -- 2020 JV, 2016 AX147
Z99Clixby Obs. in England, 6 in MPEC 2020-J54 -- 2020 JP, 2020 HS6, 2020 FB6, 2017 ME, 2010 EC135, 2000 KA
W84&program code "&" (15) via DECam in Chile, 1 in MPEC 2020-J54 -- 2018 PP29
K87Dettelbach Vineyard Obs. in Germany, 3 in MPEC 2020-J54 -- 2020 JD, 2020 HS6, 2020 GF3
W46Foxfire Village Obs., 2 in MPEC 2020-J54 -- 2020 HT2, 2020 HG9
K73Gravina Obs. in Italy, 1 in MPEC 2020-J54 -- 2000 KA
J95Great Shefford Obs. in England, 1 in MPEC 2020-J54 -- 2000 KA
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 2 in MPECs 2020-J54 & 2020-J55 -- 2020 JV, 162210
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-J54 -- 2000 KA
Z80Northolt Branch Obs. in England, 2 in MPEC 2020-J54 -- 2000 KA, 498066
F51Pan-STARRS 1 (PS1) in Hawaii, 9 in MPEC 2020-J54 -- 2020 HV1, 2020 HR4, 2020 HD7, 2020 HD4, 2019 XN1, 2011 VG9, 2011 BT59, 2007 OY, 2000 WM107
F52Pan-STARRS 2 (PS2) in Hawaii, 11 in MPEC 2020-J54 -- 2020 JG, 2020 HN6, 2020 HL7, 2020 HK7, 2020 HG6, 2020 HF3, 2015 HB10, 2014 JO25, 2000 WM107, 86667, 524530
B49Paus Obs. in Spain, 3 in MPEC 2020-J54 -- 2020 JR, 2020 HT2, 2020 FW3
D29Purple Mtn. Obs. Xuyi Station in China, 31 in MPEC 2020-J54 -- 2020 JR, 2020 HG9, 2020 HB2, 2020 FW3, 2020 FA3, 2019 XG1, 2012 EM8, 2009 KK8, 2007 HX82, 2004 FF29, 90075, 68278, 522684, 513125, 494706, 468910, 433992, 40267, 34613, 20255, 163243, 162210, 159928, 159608, 137170, 136923, 136874, 136618, 7753, 1917, 1627
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-J54 -- 2007 OY
C95SATINO-1 in France, 1 in MPEC 2020-J54 -- 2020 DG2
W88#program code "#" (12) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-J55 -- 2020 JV
W88(program code "(" (17) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-J54 -- 2020 HS6
L80SpringBok Obs., 1 in MPEC 2020-J55 -- 2020 JV
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-J54 -- 2010 EC135
I52Steward Obs. Mt. Lemmon Station in Arizona, 17 in MPEC 2020-J54 -- 2020 JR, 2020 JM, 2020 JB, 2020 HW9, 2020 HV2, 2020 HS8, 2020 HS6, 2020 HQ4, 2020 HQ2, 2020 HL3, 2020 HH2, 2020 HD4, 2020 HC10, 2020 HB9, 2020 HB2, 2020 HA8, 2017 BE32
U72Tarzana Obs., 1 in MPEC 2020-J54 -- 52768
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPECs 2020-J54 & 2020-J56 -- 2019 PO1, 2017 CR32
C51WISE in Earth polar orbit, 1 in MPEC 2020-J54 -- 192563
Q78Woogaroo Obs., 2 in MPEC 2020-J54 -- 2020 HS6, 2020 HG9
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPEC 2020-J54 -- 2017 KT4, 2014 HO4, 2000 KA, 68350, 483878, 152978, 9400, 6569
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 May '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 JUNEODyS16302033-2117419.56e-08-6.13-6.680NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2020-05-06.200 to 2020-05-08.227."
2020 HQ4JPL Sentry16302059-2120520.0001315838-5.07-5.560JPL: Computed at 07:21 today Pacific time based on 100 observations spanning 20.128 days (2020-Apr-22.14953 to 2020-May-12.27798). Diameter approximately 0.014 km. from weighted mean H=26.88.
NEODyS16302051-21181389.48e-05-5.25-6.070NEODyS: "Based on 103 optical observations (of which 1 are rejected as outliers) from 2020-04-22.150 to 2020-05-12.279."
2020 BM6JPL Sentry16302119-211911.253e-08-7.43-7.430JPL: Computed at 07:06 today Pacific time based on 31 observations spanning 27.682 days (2020-Jan-18.547232 to 2020-Feb-15.229558). Diameter approximately 0.072 km. from weighted mean H=23.36.
2019 PO1JPL Sentry16302084-2117161.50064e-05-6.69-7.200JPL: Computed at 07:13 today Pacific time based on 55 observations spanning 46.835 days (2019-Aug-09.53131 to 2019-Sep-25.365867). Diameter approximately 0.009 km. from weighted mean H=27.95.
NEODyS16302085-2118266.05e-06-7.12-7.590NEODyS: "Based on 55 optical observations (of which 1 are rejected as outliers) from 2019-08-09.532 to 2019-09-25.367."
2018 PP29JPL Sentry1630R E M O V E DJPL: Risk listing removed at 1400 UTC today
NEODyS1630R E M O V E D-
2011 VG9JPL Sentry16302104-211934.83098e-07-4.83-5.000JPL: Computed at 07:04 today Pacific time based on 61 observations spanning 16.915 days (2011-Nov-15.37847 to 2011-Dec-02.2934). Diameter approximately 0.120 km. from weighted mean H=22.18.
NEODyS16302104-211734.18e-07-4.93-5.110NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2011-11-15.379 to 2011-12-02.294."
2011 BT59JPL Sentry16302052-211938.6006e-09-5.36-5.390JPL: Computed at 07:04 today Pacific time based on 12 observations spanning 7.9934 days (2011-Jan-30.536027 to 2011-Feb-07.529449). Diameter approximately 0.220 km. from weighted mean H=20.92.
NEODyS1630207817.14e-09-5.73-5.730NEODyS: "Based on 13 optical observations (of which 1 are rejected as outliers) from 2011-01-30.537 to 2011-02-07.530."

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 May '20

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

1630Noted that JPL Sentry has updated its 2011 BT59 risk assessment - see above
Noted that NEODyS has updated its 2011 BT59 risk assessment - see above
Noted that JPL Sentry has updated its 2011 VG9 risk assessment - see above
Noted that NEODyS has updated its 2011 VG9 risk assessment - see above
Noted that JPL Sentry has removed 2018 PP29 as an impact risk - see above
Noted that NEODyS has removed 2018 PP29 as an impact risk - see above
Noted that JPL Sentry has updated its 2019 PO1 risk assessment - see above
Noted that NEODyS has updated its 2019 PO1 risk assessment - see above
Noted that JPL Sentry has posted 2020 BM6 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 HQ4 risk assessment - see above
Noted that NEODyS has updated its 2020 HQ4 risk assessment - see above
Noted that NEODyS has posted 2020 JU as an impact risk - see above
Grabbed MPEC 2020-J54 - Daily Orbit Update - see above
Grabbed MPEC 2020-J55 - 2020 JV - see above
Grabbed MPEC 2020-J56 - 2017 CR32 - see above