Contents  on 7 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 7 March '20

The MPC's NEO Confirmation Page has 10 listings

When last checked at 2332 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had ten objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of seventeen listings on the NEOCP today.

New MPECs  on 7 March '20

Minor Planet Electronic Circulars

As of last check at 2332 UTC, there have been five MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-E31 - "13:55 UT" - 2020 EK


MPEC 2020-E30 - "13:51 UT" - 2020 EJ


MPEC 2020-E29 - "13:47 UT" - 2020 EH


<< DOU on 7 March '20 >>  MPEC 2020-E28 - "12:05 UT" - Daily Orbit Update


MPEC 2020-E27 - "01:57 UT" - 2001 GS2

Observers  on 7 March '20

A total of 21 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 8 in MPECs 2020-E28, 2020-E29 & 2020-E31 -- 2020 EK, 2020 EH, 2020 DX, 2020 BZ12, 500094, 36284, 1864, 1627
T08ATLAS Mauna Loa in Hawaii, 13 in MPECs 2020-E27 & 2020-E28 -- 2019 XG1, 2001 GS2, 90367, 539940, 483878, 448818, 153267, 137199, 136993, 9400, 6047, 1866, 1864
C77Bernezzo Obs. in Italy, 1 in MPEC 2020-E28 -- 52768
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 3 in MPECs 2020-E29, 2020-E30 & 2020-E31 -- 2020 EK, 2020 EJ, 2020 EH
J95Great Shefford Obs. in England, 2 in MPECs 2020-E27 & 2020-E31 -- 2020 EK, 2001 GS2
Q62iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-E28 -- 2020 BZ12
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-E28 -- 2020 BZ12
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 8 in MPEC 2020-E28 -- 2020 DT4, 2020 CU1, 2020 CN2, 2020 BS12, 2020 BS11, 2020 BP13, 2020 BG1, 2019 BT2
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E28 -- 52768
W87LCO Cerro Tololo C in Chile, 2 in MPECs 2020-E29 & 2020-E30 -- 2020 EJ, 2020 EH
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-E28 -- 1866
L52MASTER Tavrida, 1 in MPEC 2020-E28 -- 1866
G96Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2020-E29, 2020-E30 & 2020-E31 -- 2020 EK, 2020 EJ, 2020 EH
J69North Obs. in England, 1 in MPEC 2020-E28 -- 52768
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPECs 2020-E27 & 2020-E28 -- 2019 GF1, 2001 GS2
O49Purple Mountain Observatory Yaoan Station in China, 1 in MPEC 2020-E28 -- 2020 DM4
C95SATINO-1 in France, 1 in MPEC 2020-E28 -- 2017 BM123
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2020-E28 -- 2020 DR2, 2016 SG1, 35107
291Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2020-E28 -- 2020 ED, 2020 DP4, 2020 CY2, 2020 CF2, 2020 CA3
I52Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2020-E28 & 2020-E29 -- 2020 EH, 2017 RQ16
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-E28 -- 2016 BX80
I41Zwicky Transient Facility (ZTF) in southern California, 15 in MPEC 2020-E28 -- 2019 XG1, 2019 WB6, 2019 UT9, 2017 KT4, 2005 RZ2, 90367, 89830, 68350, 54686, 35107, 315098, 26760, 175189, 7088, 6569
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 7 March '20

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2332 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 EDJPL Sentry16352096-211743.987331e-05-5.65-5.780JPL: Computed at 05:30 today Pacific time based on 23 observations spanning 2.0924 days (2020-Mar-05.18486 to 2020-Mar-07.27729). Diameter approximately 0.014 km. from weighted mean H=26.89.
NEODyS16352096-211765.87e-05-5.51-5.720NEODyS: "Based on 23 optical observations (of which 1 are rejected as outliers) from 2020-03-05.186 to 2020-03-07.278."
2020 DP4JPL Sentry1635R E M O V E DJPL: Risk listing removed at 1335 UTC today
NEODyS1635R E M O V E D-
2020 CF2JPL Sentry16352072-2116128.292997e-06-6.78-7.180JPL: Computed at 05:41 today Pacific time based on 91 observations spanning 22.991 days (2020-Feb-13.349028 to 2020-Mar-07.34005). Diameter approximately 0.011 km. from weighted mean H=27.54.
NEODyS16352096-2117139.92e-06-6.72-6.920NEODyS: "Based on 96 optical observations (of which 6 are rejected as outliers) from 2020-02-13.349 to 2020-03-07.341."

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 7 March '20

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

1635Noted that JPL Sentry has updated its 2020 CF2 risk assessment - see above
Noted that NEODyS has updated its 2020 CF2 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 JPL Sentry has updated its 2020 ED risk assessment - see above
Noted that NEODyS has updated its 2020 ED risk assessment - see above
Grabbed MPEC 2020-E28 - Daily Orbit Update - see above
Grabbed MPEC 2020-E29 - 2020 EH - see above
Grabbed MPEC 2020-E30 - 2020 EJ - see above
Grabbed MPEC 2020-E31 - 2020 EK - see above
0200Grabbed MPEC 2020-E27 - 2001 GS2 - see above