Contents  on 4 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 4 February '20

The MPC's NEO Confirmation Page has 53 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 53 objects listed. Of these, 30 were "one nighters." So far The Tracking News has counted a total of 64 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 4 February '20

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 23 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-C89 - "22:30 UT" - 2020 CD1


MPEC 2020-C88 - "20:50 UT" - 131 New Distant Objects


MPEC 2020-C87 - "19:44 UT" - 2016 TT94


MPEC 2020-C86 - "19:42 UT" - 2016 TS94 = 2016 TV94


MPEC 2020-C85 - "19:42 UT" - 2016 SW57


MPEC 2020-C84 - "19:41 UT" - 2016 SU57


MPEC 2020-C83 - "19:40 UT" - 2016 SJ57


MPEC 2020-C82 - "19:39 UT" - 2016 SY56


MPEC 2020-C81 - "19:38 UT" - 2015 TP362


MPEC 2020-C80 - "19:37 UT" - 2015 TL361


MPEC 2020-C79 - "19:35 UT" - 2014 SN363


MPEC 2020-C78 - "19:02 UT" - 2003 QT90


MPEC 2020-C77 - "18:10 UT" - Comet C/2020 A2 (Iwamoto)


MPEC 2020-C76 - "18:04 UT" - Comet C/2019 Y4 (ATLAS)


MPEC 2020-C75 - "18:02 UT" - Comet P/2019 Y2 (Fuls)


MPEC 2020-C74 - "18:01 UT" - Comet C/2019 Y1 (ATLAS)


MPEC 2020-C73 - "17:29 UT" - 2007 TB418


MPEC 2020-C72 - "17:27 UT" - 2013 RS109


MPEC 2020-C71 - "17:24 UT" - 2013 RR109


MPEC 2020-C70 - "15:20 UT" - 2020 CC1


MPEC 2020-C69 - "14:55 UT" - 2020 CB1


<< DOU on 4 February '20 >>  MPEC 2020-C68 - "12:31 UT" - Daily Orbit Update


MPEC 2020-C67 - "01:50 UT" - 2020 CA1

Observers  on 4 February '20

A total of 41 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 2 in MPECs 2020-C74 & 2020-C77 -- C/2020 A2, C/2019 Y1
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2020-C67 & 2020-C68 -- 2020 CA1, 2020 BP7, 2020 BO11, 2020 BM2, 2020 BH8, 2020 BC1, 2019 YO6, 2018 VG3, 2012 FS62, 510190, 463216, 363831
T05ATLAS Haleakala in Hawaii, 23 in MPECs 2020-C68 & 2020-C75 -- 2020 BX12, 2020 BE2, P/2019 Y2, 2013 BA74, 90075, 86324, 66008, 54686, 512244, 492143, 467317, 439313, 243025, 203015, 159454, 143947, 138127, 137925, 137170, 137120, 11405, 11066, 10115
T08ATLAS Mauna Loa in Hawaii, 35 in MPECs 2020-C68 & 2020-C76 -- 2020 BZ14, 2020 BP14, C/2019 Y4, 2019 XG1, 2015 OX78, 2015 DJ155, 2015 DE200, 2012 BE124, 2009 AH16, 89830, 52768, 526238, 511523, 483878, 448818, 416591, 376864, 333555, 253062, 248926, 237805, 214088, 18172, 163696, 162080, 137199, 137064, 136993, 136795, 111253, 103067, 9400, 6047, 1981, 1866
G20Brignoles Obs., 1 in MPEC 2020-C77 -- C/2020 A2
703Catalina Sky Survey (CSS) in Arizona, 25 in MPECs 2020-C68, 2020-C75 & 2020-C76 -- 2020 BZ14, 2020 BW14, C/2019 Y4, P/2019 Y2, 2019 XG1, 2015 DE200, 2009 AH16, 2004 MD, 2002 EY2, 1996 AE2, 539940, 53319, 528807, 52768, 416591, 415267, 267729, 18172, 162080, 137199, 137099, 137064, 136993, 103067, 4401
807&Larry Wasserman via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-C88 -- 2013 TH187
8071Marc W. Buie via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPEC 2020-C88 -- 2013 SK106, 2013 SD106
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-C70 -- 2020 CC1
A77Chante-Perdrix Obs. in France, 2 in MPECs 2020-C74 & 2020-C76 -- C/2019 Y4, C/2019 Y1
Z99Clixby Obs. in England, 6 in MPEC 2020-C68 -- 2020 CC, 2020 BZ14, 2020 BX12, 2020 BL13, 2020 BD13, 2019 XG1
W84DECam in Chile, 144 in MPECs 2020-C71, 2020-C72, 2020-C73, 2020-C78, 2020-C79, 2020-C80, 2020-C81, 2020-C82, 2020-C83, 2020-C84, 2020-C85, 2020-C86, 2020-C87 & 2020-C88 -- 2016 TT94, 2016 TS94, 2016 SY56, 2016 SW57, 2016 SU57, 2016 SJ57, 2015 VJ181, 2015 TP362, 2015 TL361, 2014 YU72, 2014 YT72, 2014 YS72, 2014 YR72, 2014 XZ47, 2014 XY47, 2014 XX47, 2014 XW47, 2014 XC48, 2014 XB48, 2014 XA48, 2014 WZ555, 2014 WY555, 2014 WE556, 2014 WD556, 2014 WC556, 2014 WB556, 2014 WA556, 2014 VC41, 2014 VB41, 2014 UQ250, 2014 UP250, 2014 UO250, 2014 UN250, 2014 TT100, 2014 TS100, 2014 SZ373, 2014 SY373, 2014 SX373, 2014 SW373, 2014 SV373, 2014 SU373, 2014 ST373, 2014 SS373, 2014 SR373, 2014 SQ373, 2014 SP373, 2014 SO373, 2014 SN373, 2014 SN363, 2014 SM373, 2014 SC374, 2014 SB374, 2014 SA374, 2014 RO74, 2014 RN74, 2014 RM74, 2014 RL74, 2014 QZ510, 2014 QY510, 2014 QX510, 2014 QW510, 2014 QV510, 2014 QU510, 2014 QT510, 2014 QS510, 2013 XU33, 2013 WK123, 2013 WJ123, 2013 WH123, 2013 VS46, 2013 VR46, 2013 VQ46, 2013 VP46, 2013 VO46, 2013 VN46, 2013 VM46, 2013 VL46, 2013 VK46, 2013 UF31, 2013 UE31, 2013 TZ187, 2013 TY187, 2013 TX187, 2013 TW187, 2013 TV187, 2013 TU187, 2013 TT187, 2013 TS187, 2013 TR187, 2013 TQ187, 2013 TP187, 2013 TO187, 2013 TN187, 2013 TM187, 2013 TL187, 2013 TK187, 2013 TJ187, 2013 TH187, 2013 TG187, 2013 TF188, 2013 TF187, 2013 TE188, 2013 TE187, 2013 TD188, 2013 TD187, 2013 TC188, 2013 TC187, 2013 TB188, 2013 TB187, 2013 TA188, 2013 SN106, 2013 SM106, 2013 SL106, 2013 SK106, 2013 SJ106, 2013 SH106, 2013 SG106, 2013 SF106, 2013 SE106, 2013 SD106, 2013 RX124, 2013 RW124, 2013 RV124, 2013 RU124, 2013 RT124, 2013 RS124, 2013 RS109, 2013 RR124, 2013 RR109, 2013 RQ124, 2013 RP124, 2013 RO124, 2013 RN124, 2013 RM124, 2013 RL124, 2013 RK124, 2013 RJ124, 2013 RH124, 2013 RG124, 2013 RF124, 2013 RE124, 2013 RD124, 2007 TB418, 2003 QT90
W84!program code "!" (10) via DECam in Chile, 19 in MPECs 2020-C68 & 2020-C88 -- 2014 VB41, 2014 UQ250, 2014 SP373, 2014 SB374, 2013 XU33, 2013 WJ123, 2013 VN46, 2013 VK46, 2013 TT187, 2013 TR187, 2013 TO187, 2013 TN187, 2013 TB188, 2013 RT124, 2013 RL124, 2013 RH124, 467475, 455322, 210012
W845Lori Allen via DECam in Chile, 1 in MPEC 2020-C68 -- 538212
N31Eden Obs., 1 in MPEC 2020-C68 -- 433
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2020-C68 -- 152754
006Fabra Obs. in Spain, 1 in MPEC 2020-C68 -- 354030
F652Lothar Kurtze in Germany via Faulkes Telescope North in Hawaii, 1 in MPEC 2020-C69 -- 2020 CB1
J95Great Shefford Obs. in England, 5 in MPECs 2020-C67, 2020-C68 & 2020-C89 -- 2020 CT, 2020 CR, 2020 CN, 2020 CD1, 2020 CA1
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-C74 -- C/2019 Y1
Z32Javalambre Obs., 1 in MPEC 2020-C68 -- 522684
Q24Katori Obs. in Japan, 1 in MPEC 2020-C77 -- C/2020 A2
6951Marc W. Buie via Kitt Peak Natl. Obs. (KPNO) in Arizona, 2 in MPECs 2020-C72 & 2020-C88 -- 2013 SN106, 2013 RS109
D95Kurihara Obs. in Japan, 1 in MPEC 2020-C77 -- C/2020 A2
H01Magdalena Ridge Obs. (MRO) in New Mexico, 2 in MPECs 2020-C67 & 2020-C70 -- 2020 CC1, 2020 CA1
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-C68 -- 4954
568*Paul Wiegert on Mauna Kea in Hawaii, 2 in MPEC 2020-C68 -- 88254, 5332
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2020-C76 -- C/2019 Y4
G96Mt. Lemmon Survey (MLS) in Arizona, 29 in MPECs 2020-C67, 2020-C68, 2020-C69, 2020-C70 & 2020-C89 -- 2020 CD1, 2020 CC1, 2020 CB1, 2020 CA1, 2019 YX5, 2019 YD2, 2019 XW2, 2013 UR3, 99799, 529450, 526238, 511684, 483560, 482244, 479325, 459451, 420286, 414960, 388798, 386847, 378610, 308043, 306595, 256412, 25330, 214088, 163692, 138013, 7088
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2020-C68 -- 252373
J69North Obs. in England, 2 in MPEC 2020-C68 -- 2020 CC, 2020 BX12
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2020-C68 -- 2100
F51Pan-STARRS 1 (PS1) in Hawaii, 29 in MPECs 2020-C68 & 2020-C70 -- 2020 CC1, 2020 BZ12, 2020 BX6, 2010 XD11, 96315, 86667, 54686, 525484, 489486, 487580, 467317, 442243, 439908, 416231, 415027, 411201, 340048, 338567, 333510, 318050, 292165, 248926, 232691, 162273, 154658, 153842, 106589, 103067, 7088
F52Pan-STARRS 2 (PS2) in Hawaii, 31 in MPECs 2020-C68 & 2020-C69 -- 2020 CB1, 2020 BS8, 2019 YR4, 2019 WB6, 2015 OX78, 2014 YV43, 2013 CL89, 2013 CK89, 1999 DB2, 65706, 512245, 506074, 470310, 438452, 416217, 414772, 35107, 329520, 329340, 307070, 297418, 252373, 232691, 217430, 18172, 162038, 154278, 11405, 106538, 105141, 1620
654Pomona College Table Mtn. Obs. in southern California, 1 in MPEC 2020-C89 -- 2020 CD1
C95SATINO-1 in France, 1 in MPEC 2020-C68 -- 2004 CH52
691Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2020-C68 -- 2020 BW7, 2020 BF9
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-C68 -- 10145
I52Steward Obs. Mt. Lemmon Station in Arizona, 3 in MPECs 2020-C69, 2020-C70 & 2020-C89 -- 2020 CD1, 2020 CC1, 2020 CB1
J22Tacande Obs. in the Canary Islands, 1 in MPEC 2020-C75 -- P/2019 Y2
I81Tarbatness Obs. in Scotland, 2 in MPECs 2020-C76 & 2020-C77 -- C/2020 A2, C/2019 Y4
C35Terrassa Obs. in Spain, 1 in MPEC 2020-C74 -- C/2019 Y1
C57TESS in Earth orbit, 4 in MPEC 2020-C68 -- 2015 RZ35, 294739, 237805, 112221
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 3 in MPEC 2020-C68 -- 2019 YW2, 2019 XW2, 2013 BA74
C51WISE in Earth polar orbit, 3 in MPEC 2020-C68 -- 2006 XF2, 267221, 10115
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPEC 2020-C68 -- 2015 OX78, 2008 CZ21, 96189, 511243, 409342, 374188, 249886, 12923
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 4 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 CWNEODyS16452046-207651.56e-05-7.91-7.930NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2020-02-01.333 to 2020-02-01.465."
2020 BW14JPL Sentry16452025-2118181.0697606e-06-2.56-3.020JPL: Computed at 06:05 today Pacific time based on 76 observations spanning 5.8796 days (2020-Jan-28.246027 to 2020-Feb-03.12565). Diameter approximately 0.718 km. from weighted mean H=18.37.
NEODyS16452033-2118211.85e-06-2.30-2.780NEODyS: "Based on 76 optical observations (of which 1 are rejected as outliers) from 2020-01-28.247 to 2020-02-03.126."
2019 YW2NEODyS1645R E M O V E D-

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 4 February '20

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

2307Grabbed MPEC 2020-C89 - 2020 CD1 - see above
2100Grabbed MPEC 2020-C88 - 131 New Distant Objects - see above
2000Grabbed MPEC 2020-C79 - 2014 SN363 - see above
Grabbed MPEC 2020-C80 - 2015 TL361 - see above
Grabbed MPEC 2020-C81 - 2015 TP362 - see above
Grabbed MPEC 2020-C82 - 2016 SY56 - see above
Grabbed MPEC 2020-C83 - 2016 SJ57 - see above
Grabbed MPEC 2020-C84 - 2016 SU57 - see above
Grabbed MPEC 2020-C85 - 2016 SW57 - see above
Grabbed MPEC 2020-C86 - 2016 TS94 = 2016 TV94 - see above
Grabbed MPEC 2020-C87 - 2016 TT94 - see above
1935Grabbed MPEC 2020-C78 - 2003 QT90 - see above
1833Grabbed MPEC 2020-C74 - Comet C/2019 Y1 (ATLAS) - see above
Grabbed MPEC 2020-C75 - Comet P/2019 Y2 (Fuls) - see above
Grabbed MPEC 2020-C76 - Comet C/2019 Y4 (ATLAS) - see above
Grabbed MPEC 2020-C77 - Comet C/2020 A2 (Iwamoto) - see above
1736Grabbed MPEC 2020-C71 - 2013 RR109 - see above
Grabbed MPEC 2020-C72 - 2013 RS109 - see above
Grabbed MPEC 2020-C73 - 2007 TB418 - see above
1645Noted that NEODyS has removed 2019 YW2 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 BW14 risk assessment - see above
Noted that NEODyS has updated its 2020 BW14 risk assessment - see above
Noted that NEODyS has posted 2020 CW as an impact risk - see above
Grabbed MPEC 2020-C68 - Daily Orbit Update - see above
Grabbed MPEC 2020-C69 - 2020 CB1 - see above
Grabbed MPEC 2020-C70 - 2020 CC1 - see above
0212Grabbed MPEC 2020-C67 - 2020 CA1 - see above