Contents  on 10 April '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 10 April '20

The MPC's NEO Confirmation Page has 26 listings

When last checked at 2300 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 26 objects listed. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 32 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 10 April '20

Minor Planet Electronic Circulars

As of last check at 2300 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-G83 - "21:34 UT" - 2020 BP14


MPEC 2020-G82 - "12:41 UT" - 2020 GC2


MPEC 2020-G81 - "12:39 UT" - 2020 GB2


<< DOU on 10 April '20 >>  MPEC 2020-G80 - "12:13 UT" - Daily Orbit Update


MPEC 2020-G79 - "10:02 UT" - 2020 GA2


MPEC 2020-G78 - "00:47 UT" - A/2020 F7

Observers  on 10 April '20

A total of 44 observers appear in today's MPECs.

CodeObserver / observatory
B37Ametlla del Valles Obs. in Spain, 1 in MPEC 2020-G79 -- 2020 GA2
R57Aorangi Iti Obs. in New Zealand, 5 in MPEC 2020-G80 -- 2020 GL, 2020 FO5, 2020 AZ2, 2017 ES2, 2006 FH36
H21Astronomical Research Obs. Westfield in Illinois, 8 in MPECs 2020-G79 & 2020-G80 -- 2020 GA2, 2011 FZ2, 86667, 85628, 539940, 373428, 169675, 137064
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2020-G83 -- 2020 BP14
T08ATLAS Mauna Loa in Hawaii, 17 in MPECs 2020-G79 & 2020-G80 -- 2020 GA2, 2019 XG1, 52768, 436325, 388838, 30825, 276732, 192563, 18172, 137170, 11405, 8566, 6047, 5626, 4581, 1864, 1627
B88Bigmuskie Obs. in Italy, 1 in MPEC 2020-G80 -- 2010 XD11
B96Brixiis Obs. in Belgium, 1 in MPEC 2020-G78 -- 2020 F7
160Castelmartini Obs. in Italy, 4 in MPEC 2020-G80 -- 36284, 35107, 18172, 11405
703Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2020-G78 & 2020-G81 -- 2020 GB2, 2020 F7
K51Celado Obs. in Italy, 1 in MPEC 2020-G81 -- 2020 GB2
Z99Clixby Obs. in England, 1 in MPEC 2020-G81 -- 2020 GB2
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2020-G80 -- 539940
K87Dettelbach Vineyard Obs. in Germany, 5 in MPECs 2020-G80 & 2020-G81 -- 2020 GB2, 2020 FO2, 2020 FA7, 2020 FA3, 363599
E89Geyserland Obs. in New Zealand, 3 in MPEC 2020-G80 -- 163243, 144411, 142555
K73Gravina Obs. in Italy, 5 in MPEC 2020-G80 -- 65690, 52768, 35107, 1866, 1627
J95Great Shefford Obs. in England, 5 in MPECs 2020-G78, 2020-G79, 2020-G80 & 2020-G81 -- 2020 GM1, 2020 GE, 2020 GB2, 2020 GA2, 2020 F7
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G78 -- 2020 F7
246KLENOT in the Czech Republic, 2 in MPECs 2020-G78 & 2020-G81 -- 2020 GB2, 2020 F7
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-G80 -- 52768
K38M57 Obs. in Italy, 1 in MPEC 2020-G79 -- 2020 GA2
108Montelupo Obs. in Italy, 1 in MPEC 2020-G79 -- 2020 GA2
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-G78 -- 2020 F7
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-G79 -- 2020 GA2
C23Olmen Obs. in Belgium, 1 in MPEC 2020-G80 -- 52768
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPECs 2020-G78, 2020-G81, 2020-G82 & 2020-G83 -- 2020 GC2, 2020 GB2, 2020 F7, 2020 BP14
F52Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-G78 -- 2020 F7
B49Paus Obs. in Spain, 1 in MPEC 2020-G79 -- 2020 GA2
V93Pin Oak Obs., 3 in MPEC 2020-G80 -- 2020 DM4, 65690, 52768
K80Platanus Obs., 1 in MPEC 2020-G79 -- 2020 GA2
L04ROASTERR-1 in Romania, 2 in MPECs 2020-G79 & 2020-G80 -- 2020 GA2, 1866
L40Saarbruecken Rastpfuhl Obs., 2 in MPEC 2020-G80 -- 52768, 137064
233San Vito Obs. in Italy, 1 in MPEC 2020-G80 -- 52768
H36Sandlot Obs. in Kansas, 3 in MPECs 2020-G78, 2020-G79 & 2020-G81 -- 2020 GB2, 2020 GA2, 2020 F7
C95SATINO-1 in France, 1 in MPEC 2020-G80 -- 2019 YR4
204Schiaparelli Obs. in Italy, 1 in MPEC 2020-G79 -- 2020 GA2
033Schwarzschild Obs. in Germany, 14 in MPECs 2020-G78, 2020-G79, 2020-G80 & 2020-G81 -- 2020 GX1, 2020 GU1, 2020 GM1, 2020 GL, 2020 GB2, 2020 GA2, 2020 GA1, 2020 FW4, 2020 FO5, 2020 F7, 2017 UZ44, 2016 EE157, 2013 AO27, 2011 GD60
L03SGT Obs., 1 in MPEC 2020-G80 -- 52768
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2020-G79 & 2020-G81 -- 2020 GB2, 2020 GA2
I52Steward Obs. Mt. Lemmon Station in Arizona, 19 in MPECs 2020-G80, 2020-G81 & 2020-G82 -- 2020 GY1, 2020 GR1, 2020 GQ, 2020 GM1, 2020 GL, 2020 GE1, 2020 GD1, 2020 GD, 2020 GC2, 2020 GB2, 2020 GA1, 2020 FX6, 2020 FX3, 2020 FT3, 2020 FS1, 2020 FR3, 2020 FO1, 2020 DR2, 2017 BE32
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 1 in MPEC 2020-G78 -- 2020 F7
858Tebbutt Obs. in New Mexico, 2 in MPECs 2020-G78 & 2020-G81 -- 2020 GB2, 2020 F7
A16Tentlingen Obs. in Switzerland, 4 in MPEC 2020-G80 -- 54686, 52768, 154993, 8566
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-G80 -- 2020 BA15
L01Visnjan Obs. in Croatia, 3 in MPECs 2020-G78, 2020-G79 & 2020-G81 -- 2020 GB2, 2020 GA2, 2020 F7
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 April '20

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2300 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 GEJPL Sentry17102089-211450.000133848-5.94-6.120JPL: Computed at 07:08 today Pacific time based on 29 observations spanning 11.570 days (2020-Mar-29.509111 to 2020-Apr-10.078956). Diameter approximately 0.008 km. from weighted mean H=28.22.
NEODyS17102089-2115282.55e-04-5.68-5.720NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2020-03-29.510 to 2020-04-10.080."
2020 FT3JPL Sentry17102089-211471.191452e-05-4.16-4.180JPL: Computed at 07:04 today Pacific time based on 29 observations spanning 18.839 days (2020-Mar-22.30472 to 2020-Apr-10.14348). Diameter approximately 0.089 km. from weighted mean H=22.91.
NEODyS17102089-2114151.39e-05-4.12-4.130NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2020-03-22.306 to 2020-04-10.144."
2020 BA15JPL Sentry1710R E M O V E DJPL: Risk listing removed at 1400 UTC today
NEODyS17102051-205343.74e-10-10.37-10.610NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2020-01-30.465 to 2020-02-19.581."

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 10 April '20

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

2203Grabbed MPEC 2020-G83 - 2020 BP14 - see above
1710Noted that JPL Sentry has removed 2020 BA15 as an impact risk - see above
Noted that NEODyS has updated its 2020 BA15 risk assessment - see above
Noted that JPL Sentry has updated its 2020 FT3 risk assessment - see above
Noted that NEODyS has updated its 2020 FT3 risk assessment - see above
Noted that JPL Sentry has updated its 2020 GE risk assessment - see above
Noted that NEODyS has updated its 2020 GE risk assessment - see above
Grabbed MPEC 2020-G79 - 2020 GA2 - see above
Grabbed MPEC 2020-G80 - Daily Orbit Update - see above
Grabbed MPEC 2020-G81 - 2020 GB2 - see above
Grabbed MPEC 2020-G82 - 2020 GC2 - see above
0415Grabbed MPEC 2020-G78 - A/2020 F7 - see above