Contents  on 9 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 9 March '20

The MPC's NEO Confirmation Page has 8 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of nine 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 9 March '20

Minor Planet Electronic Circulars

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


MPEC 2020-E37 - "16:46 UT" - 2019 GF1


MPEC 2020-E36 - "15:00 UT" - 2012 SV20


<< DOU on 9 March '20 >>  MPEC 2020-E35 - "12:06 UT" - Daily Orbit Update


MPEC 2020-E34 - "02:33 UT" - 2020 EM

Observers  on 9 March '20

Nineteen observers appear in today's MPECs.

CodeObserver / observatory
C97Al-Fulaij Obs., 1 in MPEC 2020-E35 -- 448818
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2020-E34 -- 2020 EM
T08ATLAS Mauna Loa in Hawaii, 1 in MPEC 2020-E34 -- 2020 EM
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 48 in MPEC 2020-E35 -- 2020 DZ1, 2020 DY3, 2020 DY1, 2020 DX, 2020 DT3, 2020 DR2, 2020 DQ, 2020 DM4, 2020 DJ4, 2020 DH4, 2020 DG2, 2020 DE3, 2020 CW1, 2020 CN1, 2020 CA2, 2020 BX14, 2020 BU12, 2020 BU1, 2020 BN9, 2020 BJ11, 2020 BH2, 2020 BD14, 2020 BC9, 2020 BA6, 2020 AN3, 2019 YW3, 2019 YV3, 2019 YQ5, 2019 YP4, 2019 YO6, 2019 YN4, 2019 YM6, 2019 YL1, 2019 YG1, 2019 YC, 2019 XY2, 2019 XG3, 2019 XC1, 2019 XB2, 2019 WZ, 2019 WT4, 2019 WR6, 2019 WQ3, 2019 UJ2, 2019 UG7, 2019 UG5, 2019 UC9, 2019 TO
W84!program code "!" (10) via DECam in Chile, 1 in MPEC 2020-E37 -- 2019 GF1
E89Geyserland Obs. in New Zealand, 2 in MPEC 2020-E35 -- 163243, 5660
203GiaGa Obs. in Italy, 1 in MPEC 2020-E34 -- 2020 EM
J95Great Shefford Obs. in England, 2 in MPECs 2020-E34 & 2020-E35 -- 2020 EM, 2020 DR2
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2020-E34 -- 2020 EM
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E35 -- 52768
W85LCO Cerro Tololo A in Chile, 1 in MPEC 2020-E34 -- 2020 EM
L52MASTER Tavrida, 1 in MPEC 2020-E35 -- 1866
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-E37 -- 2019 GF1
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-E34 -- 2020 EM
C95SATINO-1 in France, 2 in MPECs 2020-E34 & 2020-E35 -- 2020 EM, 2017 MX4
204Schiaparelli Obs. in Italy, 1 in MPEC 2020-E34 -- 2020 EM
587Sormano Obs. in Italy, 1 in MPEC 2020-E35 -- 52768
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-E36 -- 2012 SV20
L01Visnjan Obs. in Croatia, 1 in MPEC 2020-E34 -- 2020 EM
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 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 DB5NEODyS16302033-2118284.81e-07-3.46-3.810NEODyS: "Based on 29 optical observations (of which 1 are rejected as outliers) from 2020-02-29.518 to 2020-03-07.504."
2020 DR2JPL Sentry16302074-208122.0313e-06-2.54-2.550JPL: Computed at 06:33 today Pacific time based on 205 observations spanning 17.780 days (2020-Feb-20.19345 to 2020-Mar-08.973697). Diameter approximately 0.590 km. from weighted mean H=18.80.
NEODyS16302074-208125.95e-07-3.09-3.090NEODyS: "Based on 212 optical observations (of which 2 are rejected as outliers) from 2020-02-20.194 to 2020-03-08.974."
2020 AN3JPL Sentry16302106-210617.610e-08-5.01-5.010JPL: Computed at 06:31 today Pacific time based on 148 observations spanning 113.95 days (2019-Nov-09.147003 to 2020-Mar-02.1012). Diameter approximately 0.280 km. from weighted mean H=20.44.
NEODyS1630210611.38e-07-4.76-4.760NEODyS: "Based on 157 optical observations (of which 3 are rejected as outliers) from 2019-11-09.148 to 2020-03-02.102."
2010 LJ68JPL Sentry16302025-2106171.48417e-08-6.46-6.600JPL: Computed at 15:34 Oct. 3rd of 2018 Pacific time based on 23 observations spanning 6.5838 days (2010-Jun-11.740367 to 2010-Jun-18.32412). Diameter approximately 0.082 km. from weighted mean H=23.08.

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 9 March '20

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

1700Grabbed MPEC 2020-E37 - 2019 GF1 - see above
1630Noted that JPL Sentry has updated its 2010 LJ68 risk assessment - see above
Noted that JPL Sentry has updated its 2020 AN3 risk assessment - see above
Noted that NEODyS has updated its 2020 AN3 risk assessment - see above
Noted that NEODyS has updated its 2020 DB5 risk assessment - see above
Noted that JPL Sentry has updated its 2020 DR2 risk assessment - see above
Noted that NEODyS has updated its 2020 DR2 risk assessment - see above
Grabbed MPEC 2020-E35 - Daily Orbit Update - see above
Grabbed MPEC 2020-E36 - 2012 SV20 - see above
0403Grabbed MPEC 2020-E34 - 2020 EM - see above