Contents  on 3 March '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 3 March '20

The MPC's NEO Confirmation Page has 13 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had thirteen objects listed. Of these, ten were "one nighters." So far The Tracking News has counted a total of nineteen 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 3 March '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-E10 - "21:55 UT" - 2020 EA


<< DOU on 3 March '20 >>  MPEC 2020-E09 - "12:02 UT" - Daily Orbit Update


MPEC 2020-E08 - "03:16 UT" - 2020 DA5

Observers  on 3 March '20

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

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2020-E08 & 2020-E09 -- 2020 DX1, 2020 DU4, 2020 DH2, 2020 DA5, 2020 CX, 2020 BY15, 2020 BG15, 1993 UD, 331509, 277473
T08ATLAS Mauna Loa in Hawaii, 20 in MPEC 2020-E09 -- 2019 XG1, 2019 UT9, 2017 BM123, 2015 XL128, 2009 AH16, 2004 MD, 90367, 539940, 52768, 525364, 511523, 448818, 248926, 237805, 234341, 154993, 137199, 137099, 136993, 1866
V00Bok Telescope in Arizona, 1 in MPEC 2020-E08 -- 2020 DA5
703Catalina Sky Survey (CSS) in Arizona, 21 in MPECs 2020-E09 & 2020-E10 -- 2020 EA, 2020 DP2, 2020 DC3, 2020 CL2, 2020 BE2, 2020 BB16, 2019 WB6, 2019 SH6, 2016 GZ215, 2014 YD35, 2011 AM24, 54686, 500094, 388838, 353947, 35107, 163692, 154029, 7088, 5693, 1864
Z99Clixby Obs. in England, 2 in MPECs 2020-E09 & 2020-E10 -- 2020 EA, 448818
G37Discovery Channel Telescope in Arizona, 1 in MPEC 2020-E09 -- 2020 CD3
734Farpoint Obs. in Kansas, 6 in MPECs 2020-E09 & 2020-E10 -- 2020 EA, 2020 DX, 2020 BE2, 2019 YR4, 2019 UO, 2017 BP31
J95Great Shefford Obs. in England, 4 in MPECs 2020-E08, 2020-E09 & 2020-E10 -- 2020 EA, 2020 DR2, 2020 DP4, 2020 DA5
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E09 -- 52768
Z22MASTER IAC Obs. in the Canary Islands, 3 in MPEC 2020-E09 -- 2020 AZ2, 36284, 5693
474Mt. John Obs. in New Zealand, 12 in MPECs 2020-E08 & 2020-E09 -- 2020 DZ1, 2020 DY3, 2020 DT3, 2020 DR3, 2020 DQ3, 2020 DP3, 2020 DJ, 2020 DB4, 2020 DA5, 2020 DA4, 2020 CL1, 2020 CA3
J69North Obs. in England, 1 in MPEC 2020-E10 -- 2020 EA
Z80Northolt Branch Obs. in England, 8 in MPECs 2020-E09 & 2020-E10 -- 2020 EA, 2020 DZ3, 2020 DX, 2020 DR2, 2017 BM123, 52768, 500094, 333555
F52Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-E09 -- 2013 CL89
B49Paus Obs. in Spain, 1 in MPEC 2020-E10 -- 2020 EA
H36Sandlot Obs. in Kansas, 2 in MPECs 2020-E09 & 2020-E10 -- 2020 EA, 2020 BE2
C95SATINO-1 in France, 1 in MPEC 2020-E09 -- 2017 BE92
033Schwarzschild Obs. in Germany, 1 in MPEC 2020-E08 -- 2020 DA5
G40-program code "-" (22) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-E09 -- 2020 BP14
I52Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2020-E08 & 2020-E10 -- 2020 EA, 2020 DA5
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 March '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 DP4JPL Sentry1630R E M O V E DJPL: Risk listing removed at 1407 UTC today
NEODyS1630R E M O V E D-
2020 DR2JPL Sentry17302074-211431.9454662e-05-1.54-1.781JPL: Computed at 06:00 today Pacific time based on 173 observations spanning 11.771 days (2020-Feb-20.19345 to 2020-Mar-02.964236). Diameter approximately 0.590 km. from weighted mean H=18.79.
NEODyS16302074-211431.43e-05-1.68-1.871NEODyS: "Based on 180 optical observations (of which 2 are rejected as outliers) from 2020-02-20.194 to 2020-03-02.965."
2008 EK68JPL Sentry16302021-21172383.1827175e-06-7.75-9.040JPL: Computed at 23:08 April 6th of 2017 Pacific time based on 10 observations spanning .04006 days (2008-Mar-05.4406 to 2008-Mar-05.48066). Diameter approximately 0.004 km. from weighted mean H=29.76.

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 3 March '20

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

2208Grabbed MPEC 2020-E10 - 2020 EA - see above
1730Noted that JPL Sentry has updated its 2020 DR2 risk assessment - see above
1630Noted that JPL Sentry has updated its 2008 EK68 risk assessment - see above
Noted that JPL Sentry has removed 2020 DP4 as an impact risk - see above
Noted that NEODyS has removed 2020 DP4 as an impact risk - see above
Noted that NEODyS has updated its 2020 DR2 risk assessment - see above
Grabbed MPEC 2020-E09 - Daily Orbit Update - see above
0520Grabbed MPEC 2020-E08 - 2020 DA5 - see above