Contents  on 21 February '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 21 February '20

The MPC's NEO Confirmation Page has 34 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 34 objects listed. Of these, fourteen were "one nighters." So far The Tracking News has counted a total of 43 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 21 February '20

Minor Planet Electronic Circulars

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


MPEC 2020-D90 - "19:22 UT" - 2020 DO2


MPEC 2020-D89 - "15:01 UT" - 2019 GO3


MPEC 2020-D88 - "15:00 UT" - 2018 KP


<< DOU on 21 February '20 >>  MPEC 2020-D87 - "12:11 UT" - Daily Orbit Update


MPEC 2020-D86 - "11:52 UT" - 2020 DM2


MPEC 2020-D85 - "11:43 UT" - 2020 DL2


MPEC 2020-D84 - "07:28 UT" - 2020 DK2


MPEC 2020-D83 - "06:22 UT" - 2020 DJ2


MPEC 2020-D82 - "01:32 UT" - 2020 DH2

Observers  on 21 February '20

A total of 48 observers appear in today's MPECs.

CodeObserver / observatory
L2729PREMOTE Obs., 1 in MPEC 2020-D87 -- 3200
H21Astronomical Research Obs. Westfield in Illinois, 15 in MPECs 2020-D85, 2020-D87 & 2020-D89 -- 2020 DL2, 2020 BC5, 2020 AU, 2019 GO3, 2016 QD, 2014 LW21, 2013 EO126, 2005 EQ70, 2000 EU70, 483560, 393908, 317685, 277810, 164222, 141670
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2020-D87 -- 1620
V00Bok Telescope in Arizona, 13 in MPECs 2020-D87 & 2020-D90 -- 2020 DO2, 2020 DO, 2020 DK, 2020 BJ14, 2020 BE2, 2019 WE5, 2016 CB194, 2015 AR45, 2013 DL1, 385497, 35107, 329520, 102873
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2020-D88 -- 2018 KP
160Castelmartini Obs. in Italy, 4 in MPECs 2020-D82, 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DH2, 2020 DF2, 2020 DD2
703Catalina Sky Survey (CSS) in Arizona, 27 in MPECs 2020-D84 & 2020-D87 -- 2020 DK2, 2020 DC, 2020 BZ12, 2020 BA4, 2020 AZ2, 2019 TH7, 2017 XD, 2013 CL89, 2005 RZ2, 2003 OC3, 2000 BO28, 65690, 54686, 512245, 492143, 402267, 250620, 183548, 162038, 159928, 154229, 144411, 143527, 141765, 11066, 8566, 5131
K51Celado Obs. in Italy, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
Z99Clixby Obs. in England, 4 in MPECs 2020-D82, 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DH2, 2020 DF2, 2020 DD2
958Dax Obs. in France, 1 in MPEC 2020-D82 -- 2020 DH2
734Farpoint Obs. in Kansas, 6 in MPEC 2020-D87 -- 2020 DJ2, 2020 BE2, 2019 YR4, 2019 YE4, 2017 BP31, 2016 WE1
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
J95Great Shefford Obs. in England, 7 in MPECs 2020-D82, 2020-D83, 2020-D84, 2020-D86 & 2020-D87 -- 2020 DM2, 2020 DK2, 2020 DJ2, 2020 DH2, 2020 DG2, 2020 DD2, 2020 CP2
P93JAXA Space Tracking & Communications Center in Japan, 1 in MPEC 2020-D82 -- 2020 DH2
K38M57 Obs. in Italy, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
C94MASTER-II Tunka in Russia, 1 in MPEC 2020-D87 -- 136993
568^R. Wainscoat on Mauna Kea in Hawaii, 1 in MPEC 2020-D90 -- 2020 DO2
932McCarthy Obs. in Connecticut, 1 in MPEC 2020-D82 -- 2020 DH2
B67Mirasteilas Obs. in Switzerland, 2 in MPEC 2020-D87 -- 2015 DE200, 2005 SQ
V01Mountainville Obs. in Utah, 1 in MPEC 2020-D87 -- 2020 DJ2
G96Mt. Lemmon Survey (MLS) in Arizona, 23 in MPECs 2020-D85, 2020-D86 & 2020-D87 -- 2020 DX, 2020 DM2, 2020 DL2, 2020 BS12, 2020 BO5, 2018 BA7, 2016 GT220, 2015 RH2, 2015 HB10, 2013 CN128, 2012 QG8, 2012 PW, 2006 YU1, 2006 PY17, 2003 OC3, 66251, 439908, 349928, 277142, 276274, 138911, 11284, 4954
566NEAT's GEODSS Haleakala telescope in Hawaii, 1 in MPEC 2020-D87 -- 2010 EF181
J69North Obs. in England, 2 in MPECs 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DD2
Z80Northolt Branch Obs. in England, 5 in MPECs 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DE, 2020 DA, 2020 CP2, 2015 BK509
K63Pascoli Obs. in Italy, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
K19PASTIS Obs. in France, 1 in MPEC 2020-D87 -- 2020 BZ12
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 20 in MPEC 2020-D87 -- 2020 DX, 2020 BZ12, 2020 BH11, 2020 BE2, 2020 BB16, 2020 BA4, 2019 XN1, 2019 XG1, 2019 WB6, 2017 BM123, 2016 AX147, 2015 DE200, 2015 BK509, 2011 AM24, 2006 DY, 2005 SQ, 2003 SS84, 90075, 52768, 35107
586Pic du Midi Obs. in France, 1 in MPEC 2020-D87 -- 153814
122Pises Obs. in France, 2 in MPEC 2020-D87 -- 52768, 18172
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-D87 -- 2020 DZ1
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 3 in MPECs 2020-D82 & 2020-D87 -- 2020 DH2, 2020 CA2, 2015 OX78
L04ROASTERR-1 in Romania, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
104San Marcello Pistoiese Obs. in Italy, 3 in MPECs 2020-D82, 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DH2, 2020 DF2
H36Sandlot Obs. in Kansas, 2 in MPEC 2020-D87 -- 2020 BS8, 2016 FG15
C95SATINO-1 in France, 3 in MPECs 2020-D82, 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DH2, 2000 BO28
204Schiaparelli Obs. in Italy, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
033Schwarzschild Obs. in Germany, 6 in MPECs 2020-D82, 2020-D83, 2020-D85 & 2020-D87 -- 2020 DL2, 2020 DK2, 2020 DJ2, 2020 DH2, 2019 BO1, 2016 FG15
G40'W.F. Cashwell in Nevada via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-D87 -- 2015 BK509
587Sormano Obs. in Italy, 2 in MPECs 2020-D82 & 2020-D83 -- 2020 DJ2, 2020 DH2
691Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2020-D87 -- 2020 CF2, 2008 YZ32, 2006 BA9, 1995 CR, 35107
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2020-D87 -- 2003 SJ154
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-D87 -- 232368
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2020-D82 -- 2020 DH2
I52Steward Obs. Mt. Lemmon Station in Arizona, 16 in MPECs 2020-D84, 2020-D85, 2020-D86 & 2020-D87 -- 2020 DX1, 2020 DR, 2020 DO, 2020 DM2, 2020 DL2, 2020 DK2, 2020 DK, 2020 DF1, 2020 DC, 2020 DB1, 2020 CH2, 2020 CF2, 2020 CB3, 2020 BZ11, 2020 BC13, 2020 AC3
A16Tentlingen Obs. in Switzerland, 1 in MPEC 2020-D87 -- 5693
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-D87 -- 2020 BA5, 2020 AY1
L01Visnjan Obs. in Croatia, 7 in MPECs 2020-D82, 2020-D83, 2020-D85, 2020-D86 & 2020-D87 -- 2020 DM2, 2020 DL2, 2020 DJ2, 2020 DH2, 2017 BE92, 2016 FG15, 2011 GD60
I41Zwicky Transient Facility (ZTF) in southern California, 28 in MPECs 2020-D82, 2020-D83 & 2020-D87 -- 2020 DJ2, 2020 DH2, 2020 BE2, 2019 YG7, 2019 YE4, 2019 WB6, 2019 TH6, 2017 DJ34, 2016 FG15, 2014 AD17, 99248, 86450, 68548, 539940, 482244, 425450, 416591, 415267, 388838, 35107, 310442, 18172, 163696, 162038, 136993, 6455, 5646, 1866
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 21 February '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 DO2JPL Sentry21022067-2120915.9665301e-06-5.91-6.620JPL: Computed at 12:35 today Pacific time based on 12 observations spanning 1.1972 days (2020-Feb-20.30254 to 2020-Feb-21.49971). Diameter approximately 0.015 km. from weighted mean H=26.80.
2020 DC2NEODyS16402029-2114204.93e-08-4.46-5.070NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2020-02-16.192 to 2020-02-20.191."
2020 DJ1NEODyS16402083-2117761.42e-05-5.00-5.440NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2020-02-17.243 to 2020-02-20.114."
2020 DKJPL Sentry16402089-2119222.021031e-05-5.43-6.170JPL: Computed at 06:11 today Pacific time based on 44 observations spanning 4.8949 days (2020-Feb-16.30651 to 2020-Feb-21.20142). Diameter approximately 0.021 km. from weighted mean H=26.00.
NEODyS16402077-2118301.79e-05-5.47-6.10NEODyS: "Based on 47 optical observations (of which 3 are rejected as outliers) from 2020-02-16.307 to 2020-02-21.202."
2020 CF2JPL Sentry16402072-2116117.964179e-06-6.79-7.110JPL: Computed at 05:47 today Pacific time based on 67 observations spanning 7.9669 days (2020-Feb-13.349028 to 2020-Feb-21.31595). Diameter approximately 0.011 km. from weighted mean H=27.51.
NEODyS16402096-2116167.59e-06-6.81-7.180NEODyS: "Based on 68 optical observations (of which 2 are rejected as outliers) from 2020-02-13.349 to 2020-02-21.317."
2020 BJ14JPL Sentry16402082-208211.034e-06-5.76-5.760JPL: Computed at 05:35 today Pacific time based on 79 observations spanning 20.943 days (2020-Jan-30.399864 to 2020-Feb-20.34286). Diameter approximately 0.048 km. from weighted mean H=24.26.
2020 AY1JPL Sentry1640R E M O V E DJPL: Risk listing removed at 1343 UTC today
NEODyS1640210314.62e-11-10.85-10.850NEODyS: "Based on 126 optical observations (of which 4 are rejected as outliers) from 2020-01-05.242 to 2020-02-19.255."

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 21 February '20

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

2102Noted that JPL Sentry has posted 2020 DO2 as an impact risk - see above
1931Grabbed MPEC 2020-D90 - 2020 DO2 - see above
1640Noted that JPL Sentry has removed 2020 AY1 as an impact risk - see above
Noted that NEODyS has updated its 2020 AY1 risk assessment - see above
Noted 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 NEODyS has updated its 2020 CF2 risk assessment - see above
Noted that NEODyS has posted 2020 DC2 as an impact risk - see above
Noted that NEODyS has updated its 2020 DJ1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 DK risk assessment - see above
Noted that NEODyS has updated its 2020 DK risk assessment - see above
Grabbed MPEC 2020-D84 - 2020 DK2 - see above
Grabbed MPEC 2020-D85 - 2020 DL2 - see above
Grabbed MPEC 2020-D86 - 2020 DM2 - see above
Grabbed MPEC 2020-D87 - Daily Orbit Update - see above
Grabbed MPEC 2020-D88 - 2018 KP - see above
Grabbed MPEC 2020-D89 - 2019 GO3 - see above
0630Grabbed MPEC 2020-D83 - 2020 DJ2 - see above
0240Grabbed MPEC 2020-D82 - 2020 DH2 - see above