Contents  on 15 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 15 March '20

The MPC's NEO Confirmation Page has 12 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had twelve objects listed. Of these, four were "one nighters." So far The Tracking News has counted a total of fourteen 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 15 March '20

Minor Planet Electronic Circulars

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


MPEC 2020-E50 - "15:00 UT" - 2017 NH


<< DOU on 15 March '20 >>  MPEC 2020-E49 - "12:01 UT" - Daily Orbit Update

Observers  on 15 March '20

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

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-E49 -- 163243
H21Astronomical Research Obs. Westfield in Illinois, 22 in MPEC 2020-E49 -- 2020 DX, 2020 DR2, 2020 CE, 2020 CC2, 2020 BW10, 2020 BL10, 2020 BJ14, 2020 BE12, 2020 BD9, 2020 BC6, 2020 BC15, 2019 VN6, 2019 QV5, 2019 GO3, 2015 MO66, 52768, 500094, 36284, 8566, 5626, 1864, 1627
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 20 in MPECs 2020-E49 & 2020-E50 -- 2020 EH, 2020 EC, 2020 EA, 2020 DU4, 2020 DT4, 2020 DQ3, 2020 DM4, 2020 DG2, 2020 DC3, 2020 CW1, 2020 CL1, 2020 CF2, 2020 BS12, 2020 BO5, 2020 BJ11, 2020 BH11, 2020 AY2, 2019 XZ2, 2019 WU4, 2017 NH
G10Clavier Obs., 1 in MPEC 2020-E49 -- 333555
K87Dettelbach Vineyard Obs. in Germany, 9 in MPEC 2020-E49 -- 2020 EH, 2020 DX, 2020 DT3, 2020 DR2, 2020 DP4, 2020 DM4, 2020 DG2, 2020 BP14, 2020 AZ2
113Drebach Obs. in Germany, 6 in MPEC 2020-E49 -- 2020 DX, 2020 BP14, 65690, 448818, 276732, 6047
006Fabra Obs. in Spain, 1 in MPEC 2020-E49 -- 65690
E89Geyserland Obs. in New Zealand, 1 in MPEC 2020-E49 -- 34613
U68JPL SynTrack Robotic Telescope, 2 in MPEC 2020-E49 -- 65690, 35107
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 5 in MPEC 2020-E49 -- 2020 DF3, 2020 BZ14, 2020 AD3, 2019 XO2, 2019 SV7
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E49 -- 52768
L52MASTER Tavrida, 1 in MPEC 2020-E49 -- 154993
C94MASTER-II Tunka in Russia, 1 in MPEC 2020-E49 -- 154993
C47Nonndorf Obs. in Austria, 1 in MPEC 2020-E49 -- 2020 DP4
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-E49 -- 39796
D29Purple Mtn. Obs. Xuyi Station in China, 9 in MPEC 2020-E49 -- 2020 EH, 2020 DP4, 65674, 516154, 306462, 277810, 26760, 190166, 7088
L18QOS Obs., 2 in MPEC 2020-E49 -- 448818, 276732
C95SATINO-1 in France, 1 in MPEC 2020-E49 -- 2001 GS2
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2020-E49 -- 2020 DT4
I52Steward Obs. Mt. Lemmon Station in Arizona, 9 in MPEC 2020-E49 -- 2020 EO, 2020 EN, 2020 EF, 2020 DR2, 2020 DQ, 2020 DG2, 2020 BZ12, 2019 VE1, 2006 GB
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-E49 -- 2019 WN2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 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 DP4NEODyS2320208412.67e-10-9.88-9.880NEODyS: "Based on 53 optical observations (of which 0 are rejected as outliers) from 2020-02-27.379 to 2020-03-15.035."
2020 DF3NEODyS23202067-2115111.63e-06-5.03-5.220NEODyS: "Based on 73 optical observations (of which 1 are rejected as outliers) from 2020-02-24.445 to 2020-03-15.239."
JPL Sentry15402067-208131.8181e-06-4.95-5.190JPL: Computed at 07:52 today Pacific time based on 73 observations spanning 19.794 days (2020-Feb-24.44469 to 2020-Mar-15.23857). Diameter approximately 0.050 km. from weighted mean H=24.17.
2020 CF2NEODyS23202096-2116111.22e-05-6.63-7.110NEODyS: "Based on 99 optical observations (of which 6 are rejected as outliers) from 2020-02-13.349 to 2020-03-15.260."
JPL Sentry15402072-2120128.15626e-06-6.80-7.170JPL: Computed at 08:06 today Pacific time based on 94 observations spanning 30.910 days (2020-Feb-13.349028 to 2020-Mar-15.25934). Diameter approximately 0.010 km. from weighted mean H=27.55.
2020 BJ14JPL Sentry15402082-208218.261e-07-5.86-5.860JPL: Computed at 07:29 today Pacific time based on 85 observations spanning 22.849 days (2020-Jan-30.399864 to 2020-Feb-22.249022). Diameter approximately 0.047 km. from weighted mean H=24.27.

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 15 March '20

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

2320Noted that NEODyS has updated its 2020 CF2 risk assessment - see above
Noted that NEODyS has updated its 2020 DF3 risk assessment - see above
Noted that NEODyS has reposted 2020 DP4 as an impact risk - see above
1540Noted that JPL Sentry has updated its 2020 BJ14 risk assessment - see above
Noted that JPL Sentry has updated its 2020 CF2 risk assessment - see above
Noted that JPL Sentry has updated its 2020 DF3 risk assessment - see above
Grabbed MPEC 2020-E49 - Daily Orbit Update - see above
Grabbed MPEC 2020-E50 - 2017 NH - see above