Contents  on 2 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 2 March '20

The MPC's NEO Confirmation Page has 18 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eighteen objects listed. Of these, fourteen were "one nighters." So far The Tracking News has counted a total of 23 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 2 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.

<< DOU on 2 March '20 >>  MPEC 2020-E07 - "12:01 UT" - Daily Orbit Update

MPEC 2020-E06 - "11:49 UT" - 2020 DX4

MPEC 2020-E05 - "11:46 UT" - 2020 DW4

Observers  on 2 March '20

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

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 5 in MPEC 2020-E07 -- 2020 DT1, 2020 DO1, 2020 BN15, 2019 YR6, 177049
V00Bok Telescope in Arizona, 1 in MPEC 2020-E06 -- 2020 DX4
703Catalina Sky Survey in Arizona, 1 in MPEC 2020-E07 -- 11405
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-E06 -- 2020 DX4
Z99Clixby Obs. in England, 8 in MPEC 2020-E07 -- 2020 DC3, 2019 XN1, 2019 XG1, 2019 SH6, 2017 BM123, 2016 AX147, 2004 CH52, 500094
G37Discovery Channel Telescope in Arizona, 1 in MPEC 2020-E07 -- 2019 AM13
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2020-E07 -- 2020 DM4
E10*program code "*" (19) via Faulkes Telescope South in New South Wales, 1 in MPEC 2020-E07 -- 2020 DP3
J95Great Shefford Obs. in England, 3 in MPECs 2020-E05 & 2020-E07 -- 2020 DZ3, 2020 DW4, 2020 DV4
Q62`Steven M. Tilley in Louisiana via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-E07 -- 2020 DR2
1861program code 1 via Kitab Obs., 2 in MPEC 2020-E07 -- 2020 BZ12, 2017 BM123
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E07 -- 52768
W86LCO Cerro Tololo B in Chile, 1 in MPEC 2020-E07 -- 2020 DP3
L52MASTER Tavrida, 1 in MPEC 2020-E07 -- 2020 AZ2
K95MASTER-II Sutherland in South Africa, 2 in MPEC 2020-E07 -- 2004 CH52, 274138
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-E05 -- 2020 DW4
J69North Obs. in England, 1 in MPEC 2020-E07 -- 2020 DZ3
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-E07 -- 2020 DZ3
G34Oberfrauendorf Obs. in Germany, 2 in MPEC 2020-E07 -- 2020 DX, 2017 BM123
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2020-E07 -- 2019 AM13, 2015 PE312
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-E05 -- 2020 DW4
C95SATINO-1 in France, 1 in MPEC 2020-E07 -- 2017 BP32
033Schwarzschild Obs. in Germany, 5 in MPECs 2020-E05, 2020-E06 & 2020-E07 -- 2020 DX4, 2020 DW4, 2017 BP31, 2016 WE1, 2016 FG15
I52Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2020-E05 & 2020-E07 -- 2020 DW4, 2020 DP2
858Tebbutt Obs. in New Mexico, 2 in MPEC 2020-E07 -- 2019 XN1, 2012 RK15
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-E07 -- 2020 AE3, 2019 SJ1
I15Wishing Star Obs. in Rhode Island, 7 in MPEC 2020-E07 -- 2019 XG1, 2019 WB6, 448818, 35107, 248926, 18172, 1864
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPEC 2020-E07 -- 2020 DD3, 2020 BE2, 2019 WB6, 388838, 36284, 214088, 163692, 136993
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 2 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.





Notes for Today's Latest Risk Assessments
2020 DR2JPL Sentry17002074-211432.164857e-05-1.49-1.761JPL: Computed at 05:29 today Pacific time based on 167 observations spanning 10.326 days (2020-Feb-20.19345 to 2020-Mar-01.51962). Diameter approximately 0.590 km. from weighted mean H=18.78.
2008 EL68JPL Sentry17002020-21135963.10017368e-05-5.52-6.210JPL: Computed at 11:57 April 9th of 2017 Pacific time based on 8 observations spanning .07124 days (2008-Mar-06.40768 to 2008-Mar-06.47892). Diameter approximately 0.009 km. from weighted mean H=27.92.

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 2 March '20

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

1700Noted that JPL Sentry has updated its 2008 EL68 risk assessment - see above
Noted that JPL Sentry has updated its 2020 DR2 risk assessment - see above
Grabbed MPEC 2020-E05 - 2020 DW4 - see above
Grabbed MPEC 2020-E06 - 2020 DX4 - see above
Grabbed MPEC 2020-E07 - Daily Orbit Update - see above