Contents  on 22 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 22 February '20

The MPC's NEO Confirmation Page has 32 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 32 objects listed. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 42 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 22 February '20

Minor Planet Electronic Circulars

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


MPEC 2020-D95 - "21:51 UT" - 2020 DT2


MPEC 2020-D94 - "21:49 UT" - 2020 DS2


MPEC 2020-D93 - "21:43 UT" - 2020 DR2


MPEC 2020-D92 - "12:40 UT" - 2020 DP2


<< DOU on 22 February '20 >>  MPEC 2020-D91 - "12:13 UT" - Daily Orbit Update

Observers  on 22 February '20

A total of 54 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 23 in MPECs 2020-D91, 2020-D92, 2020-D93, 2020-D94 & 2020-D95 -- 2020 DT2, 2020 DS2, 2020 DR2, 2020 DR1, 2020 DP2, 2020 DM, 2020 CJ1, 2020 BO3, 2020 BJ9, 2020 BJ14, 2020 BD9, 2020 BD12, 2020 BC6, 2020 AU, 2016 TK, 2016 EY27, 2006 WF129, 2006 SO78, 2005 EQ70, 2003 MS2, 408792, 393908, 338049
T05ATLAS Haleakala in Hawaii, 15 in MPEC 2020-D91 -- 2020 BZ11, 2020 BP14, 2019 XG1, 2009 AH16, 89830, 52768, 416591, 248926, 18172, 162080, 153267, 137199, 136993, 136795, 1866
T08ATLAS Mauna Loa in Hawaii, 27 in MPEC 2020-D91 -- 2016 AX147, 2000 BO28, 90075, 65690, 54686, 531060, 512245, 512244, 500094, 492143, 436037, 30825, 243025, 163760, 162038, 159928, 152931, 152561, 138127, 137925, 11405, 11066, 106589, 106538, 8566, 4055, 2059
I47Auger Obs. in Argentina, 1 in MPEC 2020-D93 -- 2020 DR2
V00Bok Telescope in Arizona, 3 in MPECs 2020-D91 & 2020-D95 -- 2020 DT2, 2020 CP1, 2020 AS2
Z84Calar Alto Schmidt in Spain, 5 in MPECs 2020-D91, 2020-D93, 2020-D94 & 2020-D95 -- 2020 DT2, 2020 DS2, 2020 DR2, 2020 DF2, 2020 DD2
160Castelmartini Obs. in Italy, 8 in MPECs 2020-D91 & 2020-D93 -- 2020 DX, 2020 DR2, 2020 BZ12, 2020 BR10, 2016 AX147, 2015 BK509, 2008 EE5, 2003 OC3
703Catalina Sky Survey (CSS) in Arizona, 4 in MPECs 2020-D91, 2020-D92 & 2020-D93 -- 2020 DR2, 2020 DP2, 142348, 137805
K51Celado Obs. in Italy, 1 in MPEC 2020-D94 -- 2020 DS2
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-D92 -- 2020 DP2
850Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2020-D92 & 2020-D93 -- 2020 DR2, 2020 DP2
958Dax Obs. in France, 2 in MPECs 2020-D92 & 2020-D93 -- 2020 DR2, 2020 DP2
734Farpoint Obs. in Kansas, 3 in MPECs 2020-D92, 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2, 2020 DP2
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2020-D92 & 2020-D93 -- 2020 DR2, 2020 DP2
W46Foxfire Village Obs., 2 in MPECs 2020-D91 & 2020-D93 -- 2020 DR2, 248926
X31Galilei Obs., 2 in MPECs 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2
203GiaGa Obs. in Italy, 1 in MPEC 2020-D92 -- 2020 DP2
J95Great Shefford Obs. in England, 3 in MPECs 2020-D92, 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2, 2020 DP2
Z43Landehen Obs., 1 in MPEC 2020-D91 -- 2015 BK509
K93LCO Sutherland C in South Africa, 1 in MPEC 2020-D93 -- 2020 DR2
J136Martin Altman in Germany via the Liverpool Telescope in the Canary Islands, 1 in MPEC 2020-D91 -- 2020 AF3
K30Luscherz Obs. in Switzerland, 1 in MPEC 2020-D92 -- 2020 DP2
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-D91 -- 1864
568^R. Wainscoat on Mauna Kea in Hawaii, 11 in MPECs 2020-D91 & 2020-D92 -- 2020 DP2, 2020 CW1, 2020 CD2, 2020 BX10, 2020 BT15, 2020 BJ4, 2020 BH13, 2020 BG1, 2020 BF4, 2020 BE11, 2020 BD15
V01Mountainville Obs. in Utah, 1 in MPEC 2020-D92 -- 2020 DP2
474Mt. John Obs. in New Zealand, 1 in MPEC 2020-D94 -- 2020 DS2
G96Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2020-D91, 2020-D92, 2020-D94 & 2020-D95 -- 2020 DT2, 2020 DS2, 2020 DP2, 2020 BE2, 2008 CZ21, 409342, 35107, 329520, 159454, 102873
K74Muensterschwarzach Obs. in Germany, 2 in MPECs 2020-D91 & 2020-D92 -- 2020 DP2, 154993
J69North Obs. in England, 1 in MPEC 2020-D92 -- 2020 DP2
Z80Northolt Branch Obs. in England, 2 in MPECs 2020-D91 & 2020-D92 -- 2020 DP2, 2020 DD2
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPEC 2020-D91 -- 2019 HH4, 511523, 141498, 136582
F52Pan-STARRS 2 (PS2) in Hawaii, 3 in MPEC 2020-D91 -- 2020 CD2, 54686, 136582
K63Pascoli Obs. in Italy, 1 in MPEC 2020-D92 -- 2020 DP2
K19PASTIS Obs. in France, 1 in MPEC 2020-D93 -- 2020 DR2
586Pic du Midi Obs. in France, 1 in MPEC 2020-D91 -- 2020 DG2
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-D91 -- 2020 DH2
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 2 in MPEC 2020-D91 -- 2020 DQ, 2020 CS2
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2
H36Sandlot Obs. in Kansas, 3 in MPECs 2020-D92, 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2, 2020 DP2
C95SATINO-1 in France, 3 in MPECs 2020-D91, 2020-D92 & 2020-D93 -- 2020 DR2, 2020 DP2, 2003 SS84
K96Savelli Obs., 2 in MPECs 2020-D92 & 2020-D93 -- 2020 DR2, 2020 DP2
204Schiaparelli Obs. in Italy, 3 in MPECs 2020-D92, 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2, 2020 DP2
033Schwarzschild Obs. in Germany, 10 in MPECs 2020-D91, 2020-D92, 2020-D94 & 2020-D95 -- 2020 DT2, 2020 DS2, 2020 DP2, 2019 BO1, 2017 BP31, 2017 BM123, 2017 BE92, 2017 BB94, 2016 FG15, 2011 GD60
G40!M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-D91 -- 2017 BM123
587Sormano Obs. in Italy, 5 in MPECs 2020-D91, 2020-D92, 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2, 2020 DP2, 2020 DK2, 2020 DD2
W34Squirrel Valley Obs. in North Carolina, 3 in MPECs 2020-D91 & 2020-D94 -- 2020 DS2, 2015 BK509, 99942
I93St. Pardon de Conques Obs. in France, 3 in MPECs 2020-D92, 2020-D93 & 2020-D94 -- 2020 DS2, 2020 DR2, 2020 DP2
I52Steward Obs. Mt. Lemmon Station in Arizona, 4 in MPECs 2020-D92, 2020-D93, 2020-D94 & 2020-D95 -- 2020 DT2, 2020 DS2, 2020 DR2, 2020 DP2
A16Tentlingen Obs. in Switzerland, 2 in MPEC 2020-D91 -- 99248, 86450
W33Transit Dreams Obs., 4 in MPEC 2020-D91 -- 65690, 52768, 35107, 103067
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-D91 -- 2020 BU13
L01Visnjan Obs. in Croatia, 4 in MPECs 2020-D92, 2020-D93, 2020-D94 & 2020-D95 -- 2020 DT2, 2020 DS2, 2020 DR2, 2020 DP2
C51WISE in Earth polar orbit, 2 in MPEC 2020-D91 -- 139289, 1866
I41Zwicky Transient Facility (ZTF) in southern California, 13 in MPEC 2020-D91 -- 2020 BU12, 2019 XG1, 2017 DJ34, 2009 FU4, 2008 CZ21, 85490, 482244, 458732, 34613, 331769, 159454, 136582, 1627
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 22 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 DR2JPL Sentry23332044-2117352.0462585e-06-2.53-2.970JPL: Computed at 14:59 today Pacific time based on 110 observations spanning 2.6239 days (2020-Feb-20.19345 to 2020-Feb-22.81739). Diameter approximately 0.584 km. from weighted mean H=18.82.
2020 DO2NEODyS16302067-2118444.6e-06-6.04-6.480NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2020-02-20.303 to 2020-02-21.501."
2020 BJ14JPL Sentry20022082-208722.30012e-06-5.41-5.420JPL: Computed at 11:30 today Pacific time based on 82 observations spanning 21.847 days (2020-Jan-30.399864 to 2020-Feb-21.246972). Diameter approximately 0.048 km. from weighted mean H=24.26.
2020 BU13JPL Sentry2002R E M O V E DJPL: Risk listing removed at 1940 UTC today

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 22 February '20

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

2333Noted that JPL Sentry has posted 2020 DR2 as an impact risk - see above
2200Grabbed MPEC 2020-D93 - 2020 DR2 - see above
Grabbed MPEC 2020-D94 - 2020 DS2 - see above
Grabbed MPEC 2020-D95 - 2020 DT2 - see above
2002Noted that JPL Sentry has updated its 2020 BJ14 risk assessment - see above
Noted that JPL Sentry has removed 2020 BU13 as an impact risk - see above
1630Noted that NEODyS has posted 2020 DO2 as an impact risk - see above
Grabbed MPEC 2020-D91 - Daily Orbit Update - see above
Grabbed MPEC 2020-D92 - 2020 DP2 - see above