Contents  on 15 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 15 May '20

The MPC's NEO Confirmation Page has 85 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 85 objects listed. Of these, 54 were "one nighters." So far The Tracking News has counted a total of 103 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 15 May '20

Minor Planet Electronic Circulars

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


MPEC 2020-J86 - "21:13 UT" - 2020 JT1


MPEC 2020-J85 - "18:12 UT" - 2020 JS1


MPEC 2020-J84 - "17:34 UT" - 2006 CN10


MPEC 2020-J83 - "15:00 UT" - 2017 FD65


<< DOU on 15 May '20 >>  MPEC 2020-J82 - "12:08 UT" - Daily Orbit Update


MPEC 2020-J81 - "11:50 UT" - 2020 JR1


MPEC 2020-J80 - "11:48 UT" - 2020 JQ1


MPEC 2020-J79 - "02:08 UT" - 2020 JP1


MPEC 2020-J78 - "02:05 UT" - 2020 JO1


MPEC 2020-J77 - "00:51 UT" - 2020 JN1


MPEC 2020-J76 - "00:50 UT" - 2020 JM1


MPEC 2020-J75 - "00:49 UT" - 2020 JL1


MPEC 2020-J74 - "00:47 UT" - 2020 JK1


MPEC 2020-J73 - "00:45 UT" - 2020 JJ1


MPEC 2020-J72 - "00:43 UT" - 2020 JH1

Observers  on 15 May '20

A total of 35 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 1 in MPEC 2020-J82 -- 85184
M43Al Sadeem Obs. in Abu Dhabi, 2 in MPEC 2020-J82 -- 85184, 137199
T05ATLAS Haleakala in Hawaii, 4 in MPEC 2020-J82 -- 2010 EC135, 2000 KA, 85184, 436030
T08ATLAS Mauna Loa in Hawaii, 11 in MPEC 2020-J82 -- 2020 JV, 2020 JB, 2020 HF1, 2020 GF3, 2020 GD2, 2019 UO9, 2018 GY4, 2014 JO25, 2004 FF29, 2001 QC34, 388838
703Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2020-J74, 2020-J82 & 2020-J86 -- 2020 JT1, 2020 JK1, 2020 HG9, 2019 XG1, 2018 GX4, 2013 ON5, 2010 EC135, 2002 VR85
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 6 in MPEC 2020-J82 -- 2020 HV6, 2020 HT3, 2020 HQ1, 2020 HD5, 2020 FX4, 2016 OP5
W845Lori Allen via DECam in Chile, 1 in MPEC 2020-J82 -- 2014 HB198
U55Golden Ears Obs., 2 in MPECs 2020-J82 & 2020-J86 -- 2020 JY, 2020 JT1
J95Great Shefford Obs. in England, 8 in MPECs 2020-J73, 2020-J75, 2020-J77, 2020-J78, 2020-J80, 2020-J82 & 2020-J86 -- 2020 JT1, 2020 JQ1, 2020 JO1, 2020 JN1, 2020 JL1, 2020 JJ1, 2020 JF1, 2020 HS6
A17Guidestar Obs. in Germany, 1 in MPEC 2020-J82 -- 477885
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2020-J74 -- 2020 JK1
K85Kelmis Obs., 1 in MPEC 2020-J82 -- 438908
1861program code 1 via Kitab Obs., 2 in MPEC 2020-J82 -- 85184, 539940
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-J82 -- 85184
598Loiano Obs. in Italy, 2 in MPECs 2020-J82 & 2020-J86 -- 2020 JT1, 2020 JG1
474Mt. John Obs. in New Zealand, 3 in MPECs 2020-J78, 2020-J79 & 2020-J85 -- 2020 JS1, 2020 JP1, 2020 JO1
G96Mt. Lemmon Survey (MLS) in Arizona, 21 in MPECs 2020-J73, 2020-J74, 2020-J75, 2020-J76, 2020-J77, 2020-J78, 2020-J79, 2020-J80, 2020-J81 & 2020-J82 -- 2020 JR1, 2020 JQ1, 2020 JP1, 2020 JO1, 2020 JN1, 2020 JM1, 2020 JL1, 2020 JK1, 2020 JJ1, 2020 HT2, 2020 HQ2, 2020 HG9, 2020 HD4, 2020 BR16, 2019 YW3, 2017 FQ90, 2011 WC, 2009 QD34, 2007 OY, 2002 VR85, 1998 HN3
Z80Northolt Branch Obs. in England, 6 in MPECs 2020-J82 & 2020-J86 -- 2020 JY, 2020 JT1, 2020 JF1, 2020 HS6, 2000 KA, 477885
F51Pan-STARRS 1 (PS1) in Hawaii, 13 in MPECs 2020-J73, 2020-J82 & 2020-J85 -- 2020 JS1, 2020 JR, 2020 JJ1, 2020 JH1, 2020 HW1, 2020 HH3, 2020 HG6, 2020 FF5, 2020 EN, 2016 EL84, 2016 CC32, 2015 FP332, 2002 JQ100
F52Pan-STARRS 2 (PS2) in Hawaii, 9 in MPECs 2020-J72, 2020-J76 & 2020-J82 -- 2020 JM1, 2020 JH1, 2020 HN6, 2020 HL3, 2020 HD4, 2020 GN3, 2015 HB10, 2011 WC, 2010 JK33
K80Platanus Obs., 1 in MPEC 2020-J86 -- 2020 JT1
C95SATINO-1 in France, 1 in MPEC 2020-J82 -- 2102
033Schwarzschild Obs. in Germany, 13 in MPECs 2020-J72, 2020-J73, 2020-J75, 2020-J76, 2020-J77, 2020-J79, 2020-J80, 2020-J81, 2020-J82, 2020-J85 & 2020-J86 -- 2020 JT1, 2020 JS1, 2020 JR1, 2020 JQ1, 2020 JP1, 2020 JO1, 2020 JN1, 2020 JM1, 2020 JL1, 2020 JK1, 2020 JJ1, 2020 JH1, 2020 JE1
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-J82 -- 2020 JV
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-J86 -- 2020 JT1
I52Steward Obs. Mt. Lemmon Station in Arizona, 30 in MPECs 2020-J72, 2020-J73, 2020-J74, 2020-J75, 2020-J76, 2020-J77, 2020-J78, 2020-J79, 2020-J80, 2020-J81, 2020-J82 & 2020-J86 -- 2020 JX, 2020 JT1, 2020 JT, 2020 JR1, 2020 JQ1, 2020 JP1, 2020 JO1, 2020 JN1, 2020 JM1, 2020 JL1, 2020 JK1, 2020 JJ1, 2020 JH1, 2020 JB, 2020 HW1, 2020 HV1, 2020 HS8, 2020 HR9, 2020 HQ4, 2020 HN6, 2020 HH10, 2020 HF3, 2020 HD4, 2020 HC10, 2020 HB2, 2020 HB10, 2020 FW3, 2020 FA3, 2020 BR16, 2019 YW3
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-J78 -- 2020 JO1
W33Transit Dreams Obs., 3 in MPEC 2020-J82 -- 2020 JD, 2020 HG9, 2020 GF3
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-J83 -- 2017 FD65
L01Visnjan Obs. in Croatia, 6 in MPECs 2020-J77, 2020-J78, 2020-J79, 2020-J80, 2020-J82 & 2020-J86 -- 2020 JT1, 2020 JQ1, 2020 JP1, 2020 JO1, 2020 JN1, 2020 JK1
Z92West Park Obs. in England, 1 in MPEC 2020-J82 -- 2000 KA
C51WISE in Earth polar orbit, 1 in MPEC 2020-J84 -- 2006 CN10
Q78Woogaroo Obs., 2 in MPEC 2020-J82 -- 2020 JV, 2020 GF3
N88Xingming Obs. #3, 3 in MPECs 2020-J74, 2020-J75 & 2020-J86 -- 2020 JT1, 2020 JL1, 2020 JK1
I41Zwicky Transient Facility (ZTF) in southern California, 3 in MPEC 2020-J82 -- 90367, 477885, 333555
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 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 JS1JPL Sentry20002022-2109319.1341282e-06-5.04-5.080JPL: Computed at 12:47 today Pacific time based on 8 observations spanning 1.6347 days (2020-May-13.356394 to 2020-May-14.9911). Diameter approximately 0.018 km. from weighted mean H=26.33.
2020 HQ4JPL Sentry15302059-2119530.00012352045-5.11-5.670JPL: Computed at 07:43 today Pacific time based on 104 observations spanning 23.189 days (2020-Apr-22.14953 to 2020-May-15.33881). Diameter approximately 0.014 km. from weighted mean H=26.88.
NEODyS15302051-21181359.32e-05-5.26-5.970NEODyS: "Based on 107 optical observations (of which 1 are rejected as outliers) from 2020-04-22.150 to 2020-05-15.340."

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 15 May '20

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

2200Grabbed MPEC 2020-J86 - 2020 JT1 - see above
2000Noted that JPL Sentry has posted 2020 JS1 as an impact risk - see above
1922Grabbed MPEC 2020-J84 - 2006 CN10 - see above
Grabbed MPEC 2020-J85 - 2020 JS1 - see above
1530Noted that JPL Sentry has updated its 2020 HQ4 risk assessment - see above
Noted that NEODyS has updated its 2020 HQ4 risk assessment - see above
Grabbed MPEC 2020-J80 - 2020 JQ1 - see above
Grabbed MPEC 2020-J81 - 2020 JR1 - see above
Grabbed MPEC 2020-J82 - Daily Orbit Update - see above
Grabbed MPEC 2020-J83 - 2017 FD65 - see above
0414Grabbed MPEC 2020-J77 - 2020 JN1 - see above
Grabbed MPEC 2020-J78 - 2020 JO1 - see above
Grabbed MPEC 2020-J79 - 2020 JP1 - see above
0051Grabbed MPEC 2020-J72 - 2020 JH1 - see above
Grabbed MPEC 2020-J73 - 2020 JJ1 - see above
Grabbed MPEC 2020-J74 - 2020 JK1 - see above
Grabbed MPEC 2020-J75 - 2020 JL1 - see above
Grabbed MPEC 2020-J76 - 2020 JM1 - see above