Contents  on 15 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 15 February '20

The MPC's NEO Confirmation Page has 33 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 33 objects listed. Of these, sixteen 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 15 February '20

Minor Planet Electronic Circulars

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


MPEC 2020-C142 - "18:49 UT" - 2020 CK2


MPEC 2020-C141 - "18:45 UT" - 2020 CJ2


MPEC 2020-C140 - "18:43 UT" - 2020 CH2


MPEC 2020-C139 - "18:16 UT" - 2018 CW2


MPEC 2020-C138 - "18:12 UT" - 2020 CG2


<< DOU on 15 February '20 >>  MPEC 2020-C137 - "12:07 UT" - Daily Orbit Update

Observers  on 15 February '20

A total of 37 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 25 in MPECs 2020-C137, 2020-C138, 2020-C139, 2020-C140, 2020-C141 & 2020-C142 -- 2020 CX, 2020 CK2, 2020 CJ2, 2020 CH2, 2020 CH, 2020 CG2, 2020 BA10, 2020 AQ, 2019 YV1, 2019 YK4, 2019 UB11, 2019 SQ4, 2019 PR2, 2018 CW2, 2016 GZ215, 2013 AW52, 2008 YX32, 2004 MD, 90367, 89830, 68350, 35107, 143947, 137099, 136993
T08ATLAS Mauna Loa in Hawaii, 6 in MPECs 2020-C137 & 2020-C138 -- 2020 CG2, 2016 UT80, 2015 XL128, 99248, 159454, 4450
C77Bernezzo Obs. in Italy, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2020-C137 -- 5693
160Castelmartini Obs. in Italy, 10 in MPECs 2020-C137, 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2, 2008 EE5, 525364, 504074, 30825, 214088, 153267, 11405, 106538
703Catalina Sky Survey (CSS) in Arizona, 24 in MPEC 2020-C137 -- 2019 XG1, 2017 MX4, 2015 OX78, 2014 YD35, 2008 YX32, 90367, 539940, 52768, 511523, 483878, 463282, 459386, 416591, 415267, 331876, 248926, 237805, 18172, 163696, 162080, 153267, 137064, 136993, 6455
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 2 in MPECs 2020-C137 & 2020-C141 -- 2020 CJ2, 2020 CE
850Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
958Dax Obs. in France, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
K87Dettelbach Vineyard Obs. in Germany, 1 in MPEC 2020-C138 -- 2020 CG2
734Farpoint Obs. in Kansas, 1 in MPEC 2020-C140 -- 2020 CH2
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
203GiaGa Obs. in Italy, 4 in MPECs 2020-C138, 2020-C139, 2020-C140 & 2020-C141 -- 2020 CJ2, 2020 CH2, 2020 CG2, 2018 CW2
598Loiano Obs. in Italy, 1 in MPEC 2020-C140 -- 2020 CH2
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2020-C137 -- 2019 XN1, 2019 WB6, 2017 MX4
V01Mountainville Obs. in Utah, 1 in MPEC 2020-C139 -- 2018 CW2
G96Mt. Lemmon Survey (MLS) in Arizona, 42 in MPECs 2020-C137, 2020-C140, 2020-C141 & 2020-C142 -- 2020 CK2, 2020 CJ2, 2020 CH2, 2020 BE8, 2019 YD2, 2019 VN6, 2019 NM1, 2017 DU15, 2015 DJ155, 2015 DD200, 2012 RK15, 2011 CT4, 2011 AM24, 2010 DN1, 2005 SQ, 1995 CR, 85990, 458745, 455554, 455322, 36284, 354101, 354030, 34613, 331792, 331769, 319988, 257744, 163694, 15745, 154029, 153958, 152679, 138205, 136582, 13651, 12923, 105141, 10145, 5693, 5646, 1627
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-C138 -- 2020 CG2
F52Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-C138 -- 2020 CG2
K63Pascoli Obs. in Italy, 2 in MPECs 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2020-C137 -- 2020 BZ11, 2020 BE2, 2019 XN1, 2019 XG1, 2019 WB6, 2005 SQ, 35107
L04ROASTERR-1 in Romania, 1 in MPEC 2020-C137 -- 2020 BP14
K61Rokycany Obs. in the Czech Republic, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
619Sabadell Obs. in Spain, 1 in MPEC 2020-C137 -- 52768
104San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-C140 -- 2020 CH2
C95SATINO-1 in France, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
204Schiaparelli Obs. in Italy, 4 in MPECs 2020-C138, 2020-C139, 2020-C140 & 2020-C141 -- 2020 CJ2, 2020 CH2, 2020 CG2, 2018 CW2
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2020-C137 -- 2019 YH4, 2019 WF3
291Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2020-C137 -- 2020 CE1, 2020 BV9, 2020 BU1, 2020 BN10, 2020 BH, 2012 BS23
W34Squirrel Valley Obs. in North Carolina, 2 in MPECs 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2
I93St. Pardon de Conques Obs. in France, 4 in MPECs 2020-C138, 2020-C139, 2020-C140 & 2020-C141 -- 2020 CJ2, 2020 CH2, 2020 CG2, 2018 CW2
I52Steward Obs. Mt. Lemmon Station in Arizona, 23 in MPECs 2020-C137, 2020-C139, 2020-C140 & 2020-C141 -- 2020 CU1, 2020 CJ2, 2020 CH2, 2020 CG1, 2020 BS8, 2020 BS2, 2020 BP6, 2020 BN15, 2020 BL14, 2020 BL10, 2020 BJ14, 2020 BH5, 2020 BG8, 2020 BE8, 2020 BC8, 2020 BA12, 2020 AF3, 2019 YP4, 2019 YG7, 2019 WE5, 2019 TL4, 2018 CW2, 2016 CO246
L01Visnjan Obs. in Croatia, 5 in MPECs 2020-C138, 2020-C139, 2020-C140, 2020-C141 & 2020-C142 -- 2020 CK2, 2020 CJ2, 2020 CH2, 2020 CG2, 2018 CW2
718Wiggins Obs. in Utah, 1 in MPEC 2020-C138 -- 2020 CG2
I15Wishing Star Obs. in Rhode Island, 8 in MPEC 2020-C137 -- 2020 BZ11, 52768, 511523, 459386, 416591, 138846, 137199, 136582
I41Zwicky Transient Facility (ZTF) in southern California, 2 in MPECs 2020-C138 & 2020-C139 -- 2020 CG2, 2018 CW2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 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 CK2JPL Sentry20302045-2118890.0017704142786-4.95-5.240JPL: Computed at 12:07 today Pacific time based on 15 observations spanning .75499 days (2020-Feb-14.50537 to 2020-Feb-15.260364). Diameter approximately 0.005 km. from weighted mean H=29.29.
2020 CF2NEODyS16102072-2116216.58e-06-6.87-7.210NEODyS: "Based on 19 optical observations (of which 2 are rejected as outliers) from 2020-02-13.349 to 2020-02-14.838."
2020 CE1JPL Sentry16102095-209525.557e-06-5.71-5.980JPL: Computed at 05:29 today Pacific time based on 26 observations spanning 13.167 days (2020-Feb-02.15265 to 2020-Feb-15.31939). Diameter approximately 0.024 km. from weighted mean H=25.76.
NEODyS1610209525.58e-06-5.72-5.990NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2020-02-02.153 to 2020-02-15.320."
2020 BJ14JPL Sentry16102082-208721.74832e-05-4.51-4.510JPL: Computed at 05:28 today Pacific time based on 67 observations spanning 15.879 days (2020-Jan-30.399864 to 2020-Feb-15.27907). Diameter approximately 0.049 km. from weighted mean H=24.21.
2020 BHJPL Sentry16102104-211142.3294e-05-6.65-6.830JPL: Computed at 05:33 today Pacific time based on 56 observations spanning 28.060 days (2020-Jan-18.33189 to 2020-Feb-15.39195). Diameter approximately 0.008 km. from weighted mean H=28.23.
NEODyS16102104-2117101.9e-06-7.78-8.080NEODyS: "Based on 57 optical observations (of which 1 are rejected as outliers) from 2020-01-18.333 to 2020-02-15.393."
2019 YV1JPL Sentry16102090-211981.1235915e-05-5.47-5.620JPL: Computed at 05:39 today Pacific time based on 94 observations spanning 44.047 days (2019-Dec-21.11125 to 2020-Feb-03.15796). Diameter approximately 0.031 km. from weighted mean H=25.18.
2017 AA21NEODyS16102027-2118541.04e-06-6.15-6.640NEODyS: "Based on 7 optical observations (of which 0 are rejected as outliers) from 2017-01-03.461 to 2017-01-04.441."
2008 JD33JPL Sentry16102021-21171562.430918e-07-7.82-9.120JPL: Computed at 23:43 April 6th of 2017 Pacific time based on 13 observations spanning .11183 days (2008-May-15.28689 to 2008-May-15.39872). Diameter approximately 0.009 km. from weighted mean H=28.04.

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 February '20

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

2030Noted that JPL Sentry has posted 2020 CK2 as an impact risk - see above
1900Grabbed MPEC 2020-C140 - 2020 CH2 - see above
Grabbed MPEC 2020-C141 - 2020 CJ2 - see above
Grabbed MPEC 2020-C142 - 2020 CK2 - see above
1834Grabbed MPEC 2020-C138 - 2020 CG2 - see above
Grabbed MPEC 2020-C139 - 2018 CW2 - see above
1610Noted that JPL Sentry has updated its 2008 JD33 risk assessment - see above
Noted that NEODyS has updated its 2017 AA21 risk assessment - see above
Noted that JPL Sentry has updated its 2019 YV1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 BH risk assessment - see above
Noted that NEODyS has updated its 2020 BH 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 CE1 risk assessment - see above
Noted that NEODyS has updated its 2020 CE1 risk assessment - see above
Noted that NEODyS has posted 2020 CF2 as an impact risk - see above
Grabbed MPEC 2020-C137 - Daily Orbit Update - see above