Contents  on 11 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 11 May '20

The MPC's NEO Confirmation Page has 35 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 35 objects listed. Of these, 20 were "one nighters." So far The Tracking News has counted a total of 44 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 11 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-J53 - "20:15 UT" - 2020 JU


<< DOU on 11 May '20 >>  MPEC 2020-J52 - "12:05 UT" - Daily Orbit Update


MPEC 2020-J51 - "07:34 UT" - 2020 JT

Observers  on 11 May '20

A total of 29 observers appear in today's MPECs.

CodeObserver / observatory
A50Andrushivka Obs. in Ukraine, 2 in MPEC 2020-J52 -- 2020 JR, 2020 HG9
H21Astronomical Research Obs. Westfield in Illinois, 17 in MPEC 2020-J52 -- 2020 JR, 2020 JL, 2020 JH, 2020 HV, 2020 HT2, 2020 HS6, 2020 HP1, 2020 HC6, 2020 HB6, 2020 GF3, 2020 FB6, 2010 EC135, 85184, 68350, 436030, 184990, 137199
T05ATLAS Haleakala in Hawaii, 11 in MPEC 2020-J52 -- 2017 ME, 2010 EC135, 90075, 86667, 35107, 34613, 318050, 163243, 138847, 5626, 1627
T08ATLAS Mauna Loa in Hawaii, 19 in MPEC 2020-J52 -- 2020 HS6, 2020 HG9, 2020 GF3, 2019 UO9, 2018 GY4, 2014 JO25, 2002 XQ40, 99935, 54401, 539940, 495615, 433992, 36183, 19764, 159929, 142555, 11066, 4954, 1685
L54Berthelot Obs., 1 in MPEC 2020-J52 -- 85184
703Catalina Sky Survey in Arizona, 1 in MPEC 2020-J52 -- 436030
Z99Clixby Obs. in England, 1 in MPEC 2020-J52 -- 184990
734Farpoint Obs. in Kansas, 5 in MPECs 2020-J51 & 2020-J52 -- 2020 JT, 2020 GF3, 2015 FT118, 2010 JK33, 2006 FH36
W46Foxfire Village Obs., 2 in MPEC 2020-J52 -- 2020 HS6, 2014 JO25
U55Golden Ears Obs., 1 in MPEC 2020-J52 -- 2020 JR
J95Great Shefford Obs. in England, 5 in MPECs 2020-J51 & 2020-J52 -- 2020 JT, 2020 JD, 2020 HH10, 2020 HC6, 141525
K95MASTER-II Sutherland in South Africa, 3 in MPEC 2020-J52 -- 19764, 144411, 1685
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-J52 -- 2012 TB259
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPECs 2020-J51 & 2020-J52 -- 2020 JT, 2020 FO2
F52Pan-STARRS 2 (PS2) in Hawaii, 7 in MPEC 2020-J52 -- 2020 HL7, 2020 HB10, 459386, 436030, 425450, 141525, 1916
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 5 in MPEC 2020-J52 -- 2020 HN6, 2020 FW3, 2020 FE6, 2020 DG2, 2020 BD14
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 7 in MPEC 2020-J52 -- 2020 JH, 2020 HT3, 2020 HB10, 2017 KA3, 467317, 293054, 173561
L18QOS Obs., 2 in MPEC 2020-J52 -- 2020 HS6, 85184
H36Sandlot Obs. in Kansas, 3 in MPEC 2020-J52 -- 2020 HV1, 2020 HT3, 2019 UT9
C95SATINO-1 in France, 1 in MPEC 2020-J52 -- 2020 DF2
G40*program code "*" (19) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-J52 -- 2020 JR
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-J52 -- 2020 HS6
Y00SONEAR in Brazil, 2 in MPEC 2020-J52 -- 85184, 539940
W34Squirrel Valley Obs. in North Carolina, 2 in MPEC 2020-J52 -- 2020 JH, 2020 HS6
I52Steward Obs. Mt. Lemmon Station in Arizona, 9 in MPECs 2020-J51 & 2020-J52 -- 2020 JT, 2020 JH, 2020 HP8, 2020 HO8, 2020 HN6, 2020 HL7, 2020 HF3, 2020 HF2, 2020 HA9
W33Transit Dreams Obs., 4 in MPEC 2020-J52 -- 2020 JR, 2020 HG9, 2020 HF1, 2020 BO5
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-J52 -- 2019 PO1
L01Visnjan Obs. in Croatia, 2 in MPECs 2020-J51 & 2020-J52 -- 2020 JT, 141525
C51WISE in Earth polar orbit, 1 in MPEC 2020-J53 -- 2020 JU
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 11 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 JUJPL Sentry23582029-21198834.42453898e-05-2.85-3.670JPL: Computed at 15:20 today Pacific time based on 14 observations spanning 2.0270 days (2020-May-06.19961 to 2020-May-08.22657). Diameter approximately 0.125 km. from weighted mean H=22.21.
2020 DF2NEODyS1600R E M O V E D-
2019 PO1JPL Sentry16002084-2116141.85232e-05-6.62-7.140JPL: Computed at 06:37 today Pacific time based on 49 observations spanning 46.835 days (2019-Aug-09.53131 to 2019-Sep-25.365867). Diameter approximately 0.008 km. from weighted mean H=28.06.
NEODyS16002085-2118287.85e-06-7.01-7.540NEODyS: "Based on 49 optical observations (of which 1 are rejected as outliers) from 2019-08-09.532 to 2019-09-25.367."
2010 RF12JPL Sentry19022095-2119590.0471172460257-3.32-3.320JPL: Computed at 11:16 today Pacific time based on 323 observations spanning 5.0215 days (2010-Sep-03.493269 to 2010-Sep-08.514787). Diameter approximately 0.007 km. from weighted mean H=28.37.

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 11 May '20

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

2358Noted that JPL Sentry has posted 2020 JU as an impact risk - see above
2101Grabbed MPEC 2020-J53 - 2020 JU - see above
1902Noted that JPL Sentry has updated its 2010 RF12 risk assessment - see above
1600Noted 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 NEODyS has removed 2020 DF2 as an impact risk - see above
Grabbed MPEC 2020-J51 - 2020 JT - see above
Grabbed MPEC 2020-J52 - Daily Orbit Update - see above