Contents  on 18 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 18 February '20

The MPC's NEO Confirmation Page has 48 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 48 objects listed. Of these, 22 were "one nighters." So far The Tracking News has counted a total of 79 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 18 February '20

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 26 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-D53 - "21:33 UT" - 2020 DE1


MPEC 2020-D52 - "21:33 UT" - 2020 DD1


MPEC 2020-D51 - "21:30 UT" - 2020 DC1


MPEC 2020-D50 - "21:30 UT" - 2020 DB1


MPEC 2020-D49 - "21:28 UT" - 2020 DA1


MPEC 2020-D48 - "21:23 UT" - 2020 DZ


MPEC 2020-D47 - "21:23 UT" - 2020 DY


MPEC 2020-D46 - "21:20 UT" - 2020 DX


MPEC 2020-D45 - "21:19 UT" - 2020 CB3


MPEC 2020-D44 - "21:12 UT" - 2020 DW


MPEC 2020-D43 - "19:03 UT" - 2020 DV


MPEC 2020-D42 - "18:39 UT" - 2020 DU


MPEC 2020-D41 - "17:49 UT" - 2020 DT


MPEC 2020-D40 - "17:46 UT" - 2020 DS


MPEC 2020-D39 - "17:15 UT" - 2020 DR


MPEC 2020-D38 - "16:00 UT" - 2020 DQ


MPEC 2020-D37 - "15:59 UT" - 2020 CA3


<< DOU on 18 February '20 >>  MPEC 2020-D36 - "12:10 UT" - Daily Orbit Update


MPEC 2020-D35 - "11:15 UT" - 2020 DO


MPEC 2020-D34 - "10:56 UT" - 2020 DN


MPEC 2020-D33 - "10:17 UT" - 2020 DM


MPEC 2020-D32 - "03:31 UT" - 2020 CZ2


MPEC 2020-D31 - "03:29 UT" - 2020 DL


MPEC 2020-D30 - "03:25 UT" - 2020 BC16


MPEC 2020-D29 - "03:18 UT" - 2020 DK


MPEC 2020-D28 - "03:09 UT" - 2020 DJ

Observers  on 18 February '20

A total of 50 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 1 in MPEC 2020-D36 -- 163373
C97Al-Fulaij Obs., 1 in MPEC 2020-D36 -- 525364
H21Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2020-D29, 2020-D32, 2020-D35, 2020-D36, 2020-D38 & 2020-D46 -- 2020 DX, 2020 DQ, 2020 DO, 2020 DK, 2020 CZ2, 2020 BO3, 2020 BL9, 2020 BD12, 2020 BB13, 2019 XY2
T08ATLAS Mauna Loa in Hawaii, 1 in MPEC 2020-D46 -- 2020 DX
L54Berthelot Obs., 2 in MPEC 2020-D36 -- 2020 DD, 163373
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2020-D46 -- 2020 DX
160Castelmartini Obs. in Italy, 15 in MPEC 2020-D36 -- 2019 SH6, 2016 CA138, 2008 EE5, 54686, 514041, 416002, 267221, 163373, 162825, 162004, 153267, 11405, 11066, 106589, 106538
703Catalina Sky Survey (CSS) in Arizona, 30 in MPECs 2020-D28, 2020-D36, 2020-D45 & 2020-D50 -- 2020 DJ, 2020 DH, 2020 DB1, 2020 CB3, 2020 BZ11, 2020 BH11, 2019 XG1, 2019 XG, 2017 MX4, 2017 DJ34, 2015 OX78, 2014 YD35, 2002 EY2, 90367, 89830, 539940, 52768, 52762, 511523, 483878, 463282, 416591, 248926, 237805, 18172, 162080, 153267, 137099, 136993, 111253
309'Martin Altmann in Germany via Cerro Paranal in Chile, 1 in MPEC 2020-D36 -- 2020 AF3
Z45Cosmos Obs., 1 in MPEC 2020-D36 -- 163373
V16Dark Sky New Mexico Obs. in New Mexico, 1 in MPEC 2020-D36 -- 163373
958Dax Obs. in France, 3 in MPECs 2020-D29, 2020-D44 & 2020-D46 -- 2020 DX, 2020 DW, 2020 DK
734Farpoint Obs. in Kansas, 1 in MPEC 2020-D37 -- 2020 CA3
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-D46 -- 2020 DX
L34Galhassin Robotic Telescope, 1 in MPEC 2020-D46 -- 2020 DX
E89Geyserland Obs. in New Zealand, 5 in MPEC 2020-D36 -- 66146, 40267, 159454, 137925, 137199
J95Great Shefford Obs. in England, 5 in MPECs 2020-D36, 2020-D44, 2020-D49, 2020-D50 & 2020-D51 -- 2020 DW, 2020 DL, 2020 DC1, 2020 DB1, 2020 DA1
L96ISON Byurakan Obs. in Armenia, 1 in MPEC 2020-D36 -- 163373
Q67JBL Obs., 1 in MPEC 2020-D36 -- 2100
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-D36 -- 52768, 163373
Z43Landehen Obs., 1 in MPEC 2020-D36 -- 333555
130Lumezzane Obs. in Italy, 1 in MPEC 2020-D36 -- 416002
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2020-D36 -- 159686
108Montelupo Obs. in Italy, 1 in MPEC 2020-D36 -- 163373
474Mt. John Obs. in New Zealand, 3 in MPECs 2020-D36, 2020-D38 & 2020-D46 -- 2020 DX, 2020 DQ, 216258
G96Mt. Lemmon Survey (MLS) in Arizona, 44 in MPECs 2020-D29, 2020-D30, 2020-D31, 2020-D32, 2020-D33, 2020-D34, 2020-D35, 2020-D36, 2020-D37, 2020-D38, 2020-D39, 2020-D40, 2020-D41, 2020-D42, 2020-D43, 2020-D44, 2020-D47, 2020-D48, 2020-D49, 2020-D51, 2020-D52 & 2020-D53 -- 2020 DZ, 2020 DY, 2020 DW, 2020 DV, 2020 DU, 2020 DT, 2020 DS, 2020 DR, 2020 DQ, 2020 DO, 2020 DN, 2020 DM, 2020 DL, 2020 DK, 2020 DE1, 2020 DD1, 2020 DC1, 2020 DA1, 2020 CZ2, 2020 CU1, 2020 CH1, 2020 CA3, 2020 BX14, 2020 BR13, 2020 BC16, 2020 AZ2, 2019 YE2, 2019 TH7, 2013 CL89, 2011 CX46, 2011 AO52, 2010 CH55, 2007 BJ29, 2000 BO28, 497135, 442037, 391033, 325769, 285944, 163081, 162210, 154652, 11066, 2061
J69North Obs. in England, 3 in MPEC 2020-D36 -- 2020 DD, 2020 DA, 2016 CA138
Z80Northolt Branch Obs. in England, 2 in MPECs 2020-D36 & 2020-D44 -- 2020 DW, 163373
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2020-D36 -- 68548
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPECs 2020-D28 & 2020-D30 -- 2020 DJ, 2020 BC16
W16Pleasant Groves Obs., 1 in MPEC 2020-D36 -- 2019 WB6
654Pomona College Table Mtn. Obs. in southern California, 1 in MPEC 2020-D36 -- 2020 DD
L18QOS Obs., 1 in MPEC 2020-D36 -- 162004
L04ROASTERR-1 in Romania, 2 in MPECs 2020-D29 & 2020-D36 -- 2020 DK, 163373
V83Rolling Hills Obs. in Missouri, 1 in MPEC 2020-D36 -- 163373
C95SATINO-1 in France, 1 in MPEC 2020-D36 -- 2011 AM24
K96Savelli Obs., 2 in MPECs 2020-D29 & 2020-D46 -- 2020 DX, 2020 DK
033Schwarzschild Obs. in Germany, 6 in MPECs 2020-D36, 2020-D44, 2020-D45, 2020-D47, 2020-D50 & 2020-D51 -- 2020 DY, 2020 DW, 2020 DJ, 2020 DC1, 2020 DB1, 2020 CB3
691Spacewatch 0.9m telescope in Arizona, 14 in MPECs 2020-D36 & 2020-D38 -- 2020 DQ, 2020 CU, 2020 CH1, 2020 CF2, 2020 BS12, 2020 BJ14, 2020 BC6, 2020 AU, 2019 YW3, 2018 VG3, 2016 XH1, 2015 FC35, 2011 UV63, 2001 BB16
291Spacewatch 1.8m telescope in Arizona, 9 in MPEC 2020-D36 -- 2020 CU1, 2020 CK2, 2019 TX6, 2019 BT2, 2016 TK, 2014 YW34, 2014 UR116, 2013 EO126, 2011 YT62
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-D36 -- 162004
I93St. Pardon de Conques Obs. in France, 8 in MPECs 2020-D28, 2020-D29, 2020-D30, 2020-D31, 2020-D35, 2020-D44, 2020-D46 & 2020-D49 -- 2020 DX, 2020 DW, 2020 DO, 2020 DL, 2020 DK, 2020 DJ, 2020 DA1, 2020 BC16
I52Steward Obs. Mt. Lemmon Station in Arizona, 33 in MPECs 2020-D28, 2020-D29, 2020-D30, 2020-D31, 2020-D32, 2020-D33, 2020-D34, 2020-D35, 2020-D36, 2020-D37, 2020-D38, 2020-D39, 2020-D40, 2020-D41, 2020-D42, 2020-D43, 2020-D44, 2020-D46, 2020-D47, 2020-D48, 2020-D50, 2020-D51, 2020-D52 & 2020-D53 -- 2020 DZ, 2020 DY, 2020 DX, 2020 DW, 2020 DV, 2020 DU, 2020 DT, 2020 DS, 2020 DR, 2020 DQ, 2020 DO, 2020 DN, 2020 DM, 2020 DL, 2020 DK, 2020 DJ, 2020 DE1, 2020 DD1, 2020 DC1, 2020 DC, 2020 DB1, 2020 CZ2, 2020 CX1, 2020 CS2, 2020 CQ2, 2020 CP2, 2020 CN1, 2020 CH2, 2020 CA3, 2020 BX7, 2020 BX14, 2020 BC16, 2019 XA3
A16Tentlingen Obs. in Switzerland, 4 in MPEC 2020-D36 -- 458732, 417871, 310442, 162004
H78Univ. of Narino Obs. in Colombia, 1 in MPEC 2020-D36 -- 163373
L01Visnjan Obs. in Croatia, 10 in MPECs 2020-D29, 2020-D30, 2020-D32, 2020-D33, 2020-D34, 2020-D35, 2020-D38, 2020-D39, 2020-D43 & 2020-D44 -- 2020 DW, 2020 DV, 2020 DR, 2020 DQ, 2020 DO, 2020 DN, 2020 DM, 2020 DK, 2020 CZ2, 2020 BC16
Z92West Park Obs. in England, 1 in MPEC 2020-D36 -- 163373
C51WISE in Earth polar orbit, 3 in MPEC 2020-D36 -- 2019 YH4, 86450, 18882
I15Wishing Star Obs. in Rhode Island, 2 in MPEC 2020-D36 -- 163373, 162004
I41Zwicky Transient Facility (ZTF) in southern California, 2 in MPECs 2020-D36 & 2020-D45 -- 2020 CB3, 162004
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 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 DWJPL Sentry22402050-2119187.215184e-06-8.01-8.400JPL: Computed at 14:39 today Pacific time based on 43 observations spanning 2.3871 days (2020-Feb-16.43421 to 2020-Feb-18.82135). Diameter approximately 0.003 km. from weighted mean H=30.35.
2020 DVJPL Sentry20322034-209825.872e-09-8.75-8.790JPL: Computed at 12:29 today Pacific time based on 14 observations spanning 1.1420 days (2020-Feb-16.28582 to 2020-Feb-17.42783). Diameter approximately 0.016 km. from weighted mean H=26.68.
2020 DKNEODyS16102077-2118361.72e-05-5.54-6.220NEODyS: "Based on 31 optical observations (of which 3 are rejected as outliers) from 2020-02-16.307 to 2020-02-18.101."
JPL Sentry05332089-2120202.2594181e-05-5.44-5.810JPL: Computed at 21:08 Feb. 17th Pacific time based on 29 observations spanning 1.7936 days (2020-Feb-16.30651 to 2020-Feb-18.10009). Diameter approximately 0.021 km. from weighted mean H=26.07.
2020 CK2JPL Sentry16102057-2118500.000322813547-5.72-5.900JPL: Computed at 05:36 today Pacific time based on 23 observations spanning 3.9016 days (2020-Feb-14.50537 to 2020-Feb-18.40697). Diameter approximately 0.005 km. from weighted mean H=29.26.
NEODyS16102057-21181931.79e-04-6.07-6.970NEODyS: "Based on 24 optical observations (of which 1 are rejected as outliers) from 2020-02-14.506 to 2020-02-18.408."
2020 CF2JPL Sentry16102072-2116115.917332e-06-6.92-7.190JPL: Computed at 05:41 today Pacific time based on 39 observations spanning 4.9975 days (2020-Feb-13.349028 to 2020-Feb-18.34653). Diameter approximately 0.011 km. from weighted mean H=27.53.
NEODyS16102072-2116191.05e-05-6.63-6.760NEODyS: "Based on 40 optical observations (of which 2 are rejected as outliers) from 2020-02-13.349 to 2020-02-18.347."
2020 BJ14JPL Sentry16102082-208725.90062e-06-4.99-4.990JPL: Computed at 05:28 today Pacific time based on 72 observations spanning 18.929 days (2020-Jan-30.399864 to 2020-Feb-18.32892). Diameter approximately 0.048 km. from weighted mean H=24.22.
2011 CF66JPL Sentry05332021-21178251.41685698e-05-6.04-7.220JPL: Computed at 03:11 April 7th of 2017 Pacific time based on 11 observations spanning .17761 days (2011-Feb-13.33976 to 2011-Feb-13.51737). Diameter approximately 0.009 km. from weighted mean H=27.83.

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 18 February '20

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

2240Noted that JPL Sentry has posted 2020 DW as an impact risk - see above
2210Grabbed MPEC 2020-D44 - 2020 DW - see above
Grabbed MPEC 2020-D45 - 2020 CB3 - see above
Grabbed MPEC 2020-D46 - 2020 DX - see above
Grabbed MPEC 2020-D47 - 2020 DY - see above
Grabbed MPEC 2020-D48 - 2020 DZ - see above
Grabbed MPEC 2020-D49 - 2020 DA1 - see above
Grabbed MPEC 2020-D50 - 2020 DB1 - see above
Grabbed MPEC 2020-D51 - 2020 DC1 - see above
Grabbed MPEC 2020-D52 - 2020 DD1 - see above
Grabbed MPEC 2020-D53 - 2020 DE1 - see above
2032Noted that JPL Sentry has posted 2020 DV as an impact risk - see above
1908Grabbed MPEC 2020-D42 - 2020 DU - see above
Grabbed MPEC 2020-D43 - 2020 DV - see above
1802Grabbed MPEC 2020-D40 - 2020 DS - see above
Grabbed MPEC 2020-D41 - 2020 DT - see above
1731Grabbed MPEC 2020-D38 - 2020 DQ - see above
Grabbed MPEC 2020-D39 - 2020 DR - see above
1610Noted 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 JPL Sentry has updated its 2020 CK2 risk assessment - see above
Noted that NEODyS has updated its 2020 CK2 risk assessment - see above
Noted that NEODyS has posted 2020 DK as an impact risk - see above
Grabbed MPEC 2020-D33 - 2020 DM - see above
Grabbed MPEC 2020-D34 - 2020 DN - see above
Grabbed MPEC 2020-D35 - 2020 DO - see above
Grabbed MPEC 2020-D36 - Daily Orbit Update - see above
Grabbed MPEC 2020-D37 - 2020 CA3 - see above
0533Noted that JPL Sentry has updated its 2011 CF66 risk assessment - see above
Noted that JPL Sentry has posted 2020 DK as an impact risk - see above
0508Grabbed MPEC 2020-D28 - 2020 DJ - see above
Grabbed MPEC 2020-D29 - 2020 DK - see above
Grabbed MPEC 2020-D30 - 2020 BC16 - see above
Grabbed MPEC 2020-D31 - 2020 DL - see above
Grabbed MPEC 2020-D32 - 2020 CZ2 - see above