Contents  on 10 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 10 May '20

The MPC's NEO Confirmation Page has 32 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 32 objects listed. Of these, seventeen were "one nighters." So far The Tracking News has counted a total of 35 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 10 May '20

Minor Planet Electronic Circulars

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


<< DOU on 10 May '20 >>  MPEC 2020-J50 - "12:05 UT" - Daily Orbit Update

Observers  on 10 May '20

A total of 20 observers appear in today's MPEC.

CodeObserver / observatory
R57Aorangi Iti Obs. in New Zealand, 5 in MPEC 2020-J50 -- 2020 JR, 2020 HG9, 2020 HF1, 2020 DM4, 2020 BP14
H21Astronomical Research Obs. Westfield in Illinois, 14 in MPEC 2020-J50 -- 2020 JD, 2020 HW1, 2020 HN5, 2020 HC6, 2020 HB6, 2020 FW3, 2020 FB6, 2020 FA3, 68350, 436030, 363626, 35107, 333555, 137199
T05ATLAS Haleakala in Hawaii, 9 in MPEC 2020-J50 -- 2020 JP, 2020 HS6, 2020 GF3, 85628, 66251, 190166, 175189, 142555, 137064
T08ATLAS Mauna Loa in Hawaii, 4 in MPEC 2020-J50 -- 2020 JD, 333555, 184990, 137199
X74Campo dos Amarais Obs., 1 in MPEC 2020-J50 -- 144411
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-J50 -- 2020 HS6
K83Forti Obs., 3 in MPEC 2020-J50 -- 2020 FB6, 85628, 68350
K73Gravina Obs. in Italy, 1 in MPEC 2020-J50 -- 539940
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2020-J50 -- 10150
L65MPC code L65, 1 in MPEC 2020-J50 -- 52768
Z80Northolt Branch Obs. in England, 5 in MPEC 2020-J50 -- 85184, 438908, 436030, 40267, 4581
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2020-J50 -- 2014 HO4, 436324
F52Pan-STARRS 2 (PS2) in Hawaii, 6 in MPEC 2020-J50 -- 2020 HB10, 425450, 333555, 276274, 184990, 4257
V93Pin Oak Obs., 6 in MPEC 2020-J50 -- 99935, 86667, 539940, 184990, 175189, 1917
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 23 in MPEC 2020-J50 -- 2019 VY1, 2019 VL4, 2019 VH4, 2019 VC, 2019 UR2, 2019 UP13, 2019 SL7, 2019 RY, 2019 QV4, 2019 PE2, 2019 MK2, 2019 LW1, 2019 JX7, 2019 GD3, 2015 RZ35, 2014 QK433, 2011 LH, 455432, 355256, 340666, 159686, 12538, 5786
C95SATINO-1 in France, 1 in MPEC 2020-J50 -- 2020 DA2
W34Squirrel Valley Obs. in North Carolina, 2 in MPEC 2020-J50 -- 2020 GF3, 2020 FW3
W33Transit Dreams Obs., 3 in MPEC 2020-J50 -- 2020 GF3, 2020 FW3, 68278
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-J50 -- 2020 CQ1, 2019 YV1
I41Zwicky Transient Facility in southern California, 1 in MPEC 2020-J50 -- 2020 HC6
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 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 HM4NEODyS1620R E M O V E D-
2020 CQ1NEODyS23192070-2118564.25e-03-4.42-4.420NEODyS: "Based on 48 optical observations (of which 0 are rejected as outliers) from 2020-02-05.356 to 2020-03-05.508."
JPL Sentry16202070-2119110.00455365715-4.37-4.380JPL: Computed at 06:33 today Pacific time based on 48 observations spanning 29.152 days (2020-Feb-05.3547 to 2020-Mar-05.506938). Diameter approximately 0.006 km. from weighted mean H=28.81.
2019 YV1NEODyS23192101-211551.09e-06-6.51-6.720NEODyS: "Based on 96 optical observations (of which 0 are rejected as outliers) from 2019-12-21.112 to 2020-02-25.253."
JPL Sentry16202090-211943.830708e-06-5.93-6.200JPL: Computed at 06:39 today Pacific time based on 96 observations spanning 66.141 days (2019-Dec-21.11125 to 2020-Feb-25.252591). Diameter approximately 0.031 km. from weighted mean H=25.20.
2019 VCJPL Sentry16202117-211716.669e-08-9.52-9.520JPL: Computed at 06:32 today Pacific time based on 59 observations spanning 9.3185 days (2019-Nov-01.20208 to 2019-Nov-10.5206). Diameter approximately 0.006 km. from weighted mean H=28.82.

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 10 May '20

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

2319Noted that NEODyS has updated its 2019 YV1 risk assessment - see above
Noted that NEODyS has updated its 2020 CQ1 risk assessment - see above
1620Noted that JPL Sentry has reposted 2019 VC as an impact risk - see above
Noted that JPL Sentry has updated its 2019 YV1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 CQ1 risk assessment - see above
Noted that NEODyS has removed 2020 HM4 as an impact risk - see above
Grabbed MPEC 2020-J50 - Daily Orbit Update - see above