Contents  on 19 January '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.

Traffic Report  on 19 January '20

Twelve objects reported inside ten LD

There are twelve asteroids reported moving within ten lunar distances (LD) of our planet today. Closest is newly announced risk-listed 2020 BB, which moves in from 3.02 to 2.46 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 1.0, 2.41, 5.0 & 10.0 LD boundaries
Earth passage I D ~Size Distance today  Inside ten LD Notes
2.00 LD Jan. 21 2020 BB 6 m  2.46 from 3.02 LD Jan. 9 - Feb. 2 NEW, NHATS target, risk - MPEC, DOU
2.7   LD Jan. 14* 2020 BH 8 m  4.6 to 5.3 LD Jan. 1 - 26 NEW, EPU +/- 5 mins.* - MPEC
3.67 LD Jan. 21 2020 BP 27 m  7.42 from 10.85 LD today - Jan. 24 NEW, enters ten LD - MPEC
3.71 LD Jan. 10 2019 YF4 13 m  6.61 to 7.14 LD Dec. 27 - Jan. 25 NHATS target
6.05 LD Jan. 17 2020 AL3 20 m  8.14 to 10.24 LD Jan. 14 - 19 exits ten LD
6.4   LD today* 2020 BK 16 m  6.4 LD Jan. 11 - 27 NEW, EPU +/- 12 mins.*, Earth closest
at 0656 UTC - MPEC
6.5   LD Jan. 13* 2020 AE1 11 m  8.3 to 8.8 LD Jan. 5 - 21 EPU +/- 1.28 hours*, NHATS target
6.85 LD Jan. 16 2019 YD3 21 m  7.50 to 8.00 LD Jan. 9 - 22 NHATS target
7.43 LD today 2020 AM3 35 m  7.43 LD Jan. 17 - 20 Earth closest at 0628 UTC
8.2   LD Jan. 17* 2020 BL 14 m  8.5 to 9.1 LD Jan. 13 - 21 NEW, EPU +/- 7 mins.* - MPEC
8.23 LD Jan. 16 2020 AZ1 16 m  8.64 to 8.95 LD Jan. 9 - 22 NHATS target
9.08 LD Jan. 17 2020 AD1 19 m  9.15 to 9.33 LD Jan. 13 - 22 NHATS target
Approaching - sorted by 10-LD bubble entry date
Earth passage I D ~Size Distance today  Inside ten LD Notes
9.8   LD Jan. 21* 2020 BN 9 m  10.2 from 10.6 LD tomorrow - Jan. 23 NEW, EPU +/- 25 mins.* - MPEC
8.29 LD Jan. 25 2020 AK3 21 m  11.73 from 12.89 LD Jan. 21 - 28 NHATS target - DOU
* EPU = Earth passage uncertainty

This report was generated at 2040 UTC with seven discoveries: approaching 2020 BN (MPEC), inbound objects 2020 BP (MPEC) and risk-listed 2020 BB (MPEC, DOU), passing 2020 BK (MPEC), outbound 2020 BL (MPEC) and 2020 BH (MPEC), and already departed 2020 BD (MPEC, DOU), which went by us at about 4.84 LD on January 14th. Today's DOU MPEC has the recovery of distant radar target 2018 BM5 and follow-up for approaching 2020 AK3 and departed objects 2019 YA4 and 2019 YP3, plus observation of 2019 SD from last October and astrometry from early this month for 2020 AG, and from October for 2019 UG11, 2019 UJ6, 2019 UL5, and 2019 UG3.



Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting about transient natural objects that approach our planet's gravitational sphere of influence (SOI), which has a radius of about 2.41 LD from Earth's center. This puts a focus on some of the most important and very best NEO observation work, representative of the much larger NEO discovery and tracking effort. "Distant" is used here to describe an object under observation that has come within ten LD since A/CC began this traffic reporting (2007) but is not now so close. Object temporal distances are derived by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 19 January '20

The MPC's NEO Confirmation Page has 89 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 89 objects listed. Of these, 57 were "one nighters." So far The Tracking News has counted a total of 122 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 19 January '20

Minor Planet Electronic Circulars

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


MPEC 2020-B24 - "23:18 UT" - 2020 BU


MPEC 2020-B23 - "23:16 UT" - 2020 BT


MPEC 2020-B22 - "23:14 UT" - 2020 BS


MPEC 2020-B21 - "14:19 UT" - 2020 BR


MPEC 2020-B20 - "14:14 UT" - 2020 BQ


MPEC 2020-B19 - "14:12 UT" - 2020 BP


MPEC 2020-B18 - "14:11 UT" - 2020 BO


MPEC 2020-B17 - "14:07 UT" - 2020 BN


MPEC 2020-B16 - "14:04 UT" - 2020 BM


MPEC 2020-B15 - "13:58 UT" - 2020 BL


MPEC 2020-B14 - "13:54 UT" - 2020 BK


MPEC 2020-B13 - "13:50 UT" - 2020 BJ


MPEC 2020-B12 - "13:48 UT" - 2020 BH


<< DOU on 19 January '20 >>  MPEC 2020-B11 - "12:03 UT" - Daily Orbit Update


MPEC 2020-B10 - "04:20 UT" - 2020 BE


MPEC 2020-B09 - "02:39 UT" - 2020 BD


MPEC 2020-B08 - "02:36 UT" - 2020 BC


MPEC 2020-B07 - "00:52 UT" - 2020 BB

Observers  on 19 January '20

A total of 46 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPEC 2020-B11 -- 2019 XU2, 2019 XO2, 2019 QT6
T05ATLAS Haleakala in Hawaii, 32 in MPECs 2020-B10, 2020-B11 & 2020-B22 -- 2020 BS, 2020 BE, 2018 BP, 2015 XK351, 2007 BJ29, 2006 KY86, 90075, 53110, 512245, 492143, 458732, 428223, 36236, 35107, 338347, 311044, 310442, 30825, 205378, 203015, 162038, 138013, 137925, 137120, 11405, 11066, 106589, 106538, 7088, 5693, 5626, 2059
T08ATLAS Mauna Loa in Hawaii, 20 in MPEC 2020-B11 -- 2013 AW52, 2012 BE124, 2012 BD124, 2008 LW16, 2002 EY2, 483878, 416591, 363067, 281365, 250577, 192563, 18172, 163696, 162004, 137199, 137064, 136993, 136795, 111253, 6455
I47Auger Obs. in Argentina, 1 in MPEC 2020-B11 -- 2020 BE
C77Bernezzo Obs. in Italy, 4 in MPECs 2020-B07, 2020-B18, 2020-B19 & 2020-B21 -- 2020 BR, 2020 BP, 2020 BO, 2020 BB
160Castelmartini Obs. in Italy, 4 in MPEC 2020-B11 -- 2019 UJ6, 137120, 103067, 1627
703Catalina Sky Survey (CSS) in Arizona, 49 in MPECs 2020-B07, 2020-B11, 2020-B12, 2020-B13, 2020-B14, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BK, 2020 BJ, 2020 BH, 2020 BB, 2020 AZ2, 2020 AD3, 2019 YD2, 2019 SH6, 2016 UT80, 2016 AX147, 2015 HU116, 2014 AD17, 2013 PV2, 2011 CT4, 86326, 85628, 68548, 68350, 512245, 511684, 474223, 455322, 438452, 427778, 374188, 34613, 307070, 163373, 162038, 152931, 137924, 137120, 137084, 136582, 11066, 10145, 7088, 5693, 5626, 4183, 3752, 3200, 3102, 1627, 1620
Z99Clixby Obs. in England, 10 in MPECs 2020-B07, 2020-B10, 2020-B11, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BE, 2020 BB, 2019 XG1, 2017 AE5, 2011 CT4, 1996 AE2
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 8 in MPECs 2020-B10 & 2020-B11 -- 2020 BE, 2020 AX1, 2020 AW2, 2020 AW1, 2020 AR2, 2020 AB3, 2019 NM1, 2018 BM5
006Fabra Obs. in Spain, 2 in MPEC 2020-B11 -- 437316, 137199
734Farpoint Obs. in Kansas, 11 in MPECs 2020-B11, 2020-B12, 2020-B13, 2020-B18, 2020-B19 & 2020-B21 -- 2020 BR, 2020 BP, 2020 BO, 2020 BJ, 2020 BH, 2020 BC, 2019 XW2, 2019 UJ6, 2019 UJ15, 2017 ME, 2016 WE1
X31Galilei Obs., 1 in MPEC 2020-B10 -- 2020 BE
E89Geyserland Obs. in New Zealand, 3 in MPEC 2020-B11 -- 36284, 11405, 1627
203GiaGa Obs. in Italy, 4 in MPECs 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO
J95Great Shefford Obs. in England, 14 in MPECs 2020-B07, 2020-B08, 2020-B09, 2020-B10, 2020-B11, 2020-B14, 2020-B15, 2020-B17, 2020-B18, 2020-B19, 2020-B20, 2020-B21, 2020-B23 & 2020-B24 -- 2020 BU, 2020 BT, 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BN, 2020 BL, 2020 BK, 2020 BE, 2020 BD, 2020 BC, 2020 BB, 2020 AQ1
246KLENOT in the Czech Republic, 1 in MPEC 2020-B11 -- 2019 UJ6
W87LCO Cerro Tololo C in Chile, 1 in MPEC 2020-B11 -- 2019 UG11
K30Luscherz Obs. in Switzerland, 2 in MPECs 2020-B10 & 2020-B19 -- 2020 BP, 2020 BE
K38M57 Obs. in Italy, 4 in MPECs 2020-B07, 2020-B18, 2020-B19 & 2020-B21 -- 2020 BR, 2020 BP, 2020 BO, 2020 BB
H01Magdalena Ridge Obs. (MRO) in New Mexico, 4 in MPECs 2020-B11, 2020-B13, 2020-B15 & 2020-B24 -- 2020 BU, 2020 BL, 2020 BJ, 2019 UJ6
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2020-B11 -- 137170
711McDonald Obs. in Texas, 20 in MPECs 2020-B09, 2020-B10, 2020-B11, 2020-B12, 2020-B13, 2020-B14, 2020-B15, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BL, 2020 BK, 2020 BJ, 2020 BH, 2020 BE, 2020 BD, 2020 AZ2, 2020 AY2, 2019 YU3, 2019 YJ3, 2019 YA4, 2019 XY2, 2019 WF3, 2019 NE1, 2016 XO23, 2016 AR130
474Mt. John Obs. in New Zealand, 4 in MPECs 2020-B10, 2020-B13, 2020-B21 & 2020-B23 -- 2020 BT, 2020 BR, 2020 BJ, 2020 BE
G96Mt. Lemmon Survey (MLS) in Arizona, 30 in MPECs 2020-B08, 2020-B09, 2020-B11, 2020-B15, 2020-B16, 2020-B17 & 2020-B24 -- 2020 BU, 2020 BN, 2020 BM, 2020 BL, 2020 BD, 2020 BC, 2019 YR4, 2019 XU2, 2019 UZ13, 2019 UL5, 2019 UK5, 2019 UJ6, 2019 UG3, 2019 TZ4, 2017 BE92, 2016 HD19, 2015 XL128, 2013 CA88, 52762, 516396, 456946, 455432, 415949, 337557, 281365, 162186, 162080, 162004, 152978, 137099
J69North Obs. in England, 1 in MPEC 2020-B10 -- 2020 BE
Z80Northolt Branch Obs. in England, 2 in MPECs 2020-B07 & 2020-B20 -- 2020 BQ, 2020 BB
F51Pan-STARRS 1 (PS1) in Hawaii, 29 in MPECs 2020-B09, 2020-B11, 2020-B16, 2020-B20 & 2020-B23 -- 2020 BT, 2020 BQ, 2020 BM, 2020 BD, 2019 WZ, 2019 WF3, 2019 UZ13, 2019 UO9, 2019 UF7, 2019 SF7, 2019 QT6, 2019 PE2, 2017 BP31, 2016 VQ5, 2011 VR5, 2011 UG256, 2011 AO52, 2006 OZ, 529668, 497135, 415027, 405212, 307070, 258325, 254419, 163373, 138883, 138846, 10145
F52Pan-STARRS 2 (PS2) in Hawaii, 8 in MPEC 2020-B11 -- 2019 QR6, 2019 PR2, 2012 BD124, 2007 BJ29, 2006 YU1, 52768, 413421, 138175
K63Pascoli Obs. in Italy, 5 in MPECs 2020-B07, 2020-B10, 2020-B11 & 2020-B18 -- 2020 BO, 2020 BE, 2020 BB, 2019 UL5, 2019 UJ6
104San Marcello Pistoiese Obs. in Italy, 13 in MPECs 2020-B07, 2020-B08, 2020-B09, 2020-B10, 2020-B12, 2020-B13, 2020-B14, 2020-B15, 2020-B16, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BM, 2020 BL, 2020 BK, 2020 BJ, 2020 BH, 2020 BE, 2020 BD, 2020 BC, 2020 BB
H36Sandlot Obs. in Kansas, 2 in MPECs 2020-B18 & 2020-B21 -- 2020 BR, 2020 BO
C95SATINO-1 in France, 8 in MPECs 2020-B07, 2020-B10, 2020-B11, 2020-B14, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BK, 2020 BE, 2020 BB, 2011 CT4
K96Savelli Obs., 1 in MPEC 2020-B19 -- 2020 BP
204Schiaparelli Obs. in Italy, 9 in MPECs 2020-B07, 2020-B08, 2020-B12, 2020-B13, 2020-B14, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BK, 2020 BJ, 2020 BH, 2020 BC, 2020 BB
033Schwarzschild Obs. in Germany, 1 in MPEC 2020-B11 -- 2020 AG
G40!M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-B11 -- 2012 BU61
G40'W.F. Cashwell in Nevada via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-B11 -- 214088
G40-program code "-" (22) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-B11 -- 2020 BE
587Sormano Obs. in Italy, 7 in MPECs 2020-B07, 2020-B10, 2020-B12, 2020-B18, 2020-B19, 2020-B20 & 2020-B21 -- 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BH, 2020 BE, 2020 BB
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2020-B11 -- 2019 XL1, 2019 OA5, 2006 WF129
291Spacewatch 1.8m telescope in Arizona, 8 in MPEC 2020-B11 -- 2020 AQ, 2019 YP3, 2019 YA2, 2019 US6, 2018 VL7, 2018 VG3, 2018 KB1, 2013 FX7
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2020-B22 -- 2020 BS
I52Steward Obs. Mt. Lemmon Station in Arizona, 34 in MPECs 2020-B07, 2020-B08, 2020-B09, 2020-B10, 2020-B11, 2020-B12, 2020-B13, 2020-B14, 2020-B16, 2020-B18, 2020-B19, 2020-B20, 2020-B21, 2020-B23 & 2020-B24 -- 2020 BU, 2020 BT, 2020 BR, 2020 BQ, 2020 BP, 2020 BO, 2020 BM, 2020 BK, 2020 BJ, 2020 BH, 2020 BE, 2020 BD, 2020 BC, 2020 BB, 2020 AO3, 2020 AK3, 2020 AD3, 2019 YR4, 2019 YP5, 2019 YM6, 2019 YK4, 2019 YJ3, 2019 XX, 2019 XU2, 2019 UV3, 2019 UK5, 2019 UJ6, 2019 UG3, 2019 QT8, 2019 QR6, 2019 PR2, 2019 OP2, 2016 GZ215, 2008 TC2
J22Tacande Obs. in the Canary Islands, 1 in MPEC 2020-B10 -- 2020 BE
A16Tentlingen Obs. in Switzerland, 6 in MPEC 2020-B11 -- 2018 BP, 99248, 86326, 85490, 13651, 1620
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-B11 -- 2019 UK, 2019 SD
L01Visnjan Obs., 5 in MPECs 2020-B10, 2020-B11, 2020-B22, 2020-B23 & 2020-B24 -- 2020 BU, 2020 BT, 2020 BS, 2020 BE, 2019 UJ6
I41Zwicky Transient Facility (ZTF) in southern California, 7 in MPECs 2020-B11 & 2020-B22 -- 2020 BS, 2019 YK4, 2019 QV5, 2002 EY2, 539940, 409342, 250577
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 19 January '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 BHNEODyS22502097-2117156.19e-06-7.26-7.320NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2020-01-18.333 to 2020-01-19.375."
2020 BBNEODyS22502105-210722.73e-08-9.82-9.890NEODyS: "Based on 47 optical observations (of which 0 are rejected as outliers) from 2020-01-18.290 to 2020-01-19.148."
JPL Sentry16302110-211013.688e-07-8.69-8.690JPL #2 for the day: Computed at 06:26 today Pacific time based on 47 observations spanning .85795 days (2020-Jan-18.28892 to 2020-Jan-19.14687). Diameter approximately 0.006 km. from weighted mean H=28.68.
2019 YP3NEODyS2250211111.07e-07-7.78-7.780NEODyS: "Based on 57 optical observations (of which 0 are rejected as outliers) from 2019-12-27.534 to 2020-01-19.346."
JPL Sentry16302103-210312.692e-09-9.26-9.260JPL: Computed at 05:59 today Pacific time based on 57 observations spanning 22.811 days (2019-Dec-27.53345 to 2020-Jan-19.34474). Diameter approximately 0.023 km. from weighted mean H=25.86.
2019 YA2NEODyS2250R 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 19 January '20

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

2331Grabbed MPEC 2020-B22 - 2020 BS - see above
Grabbed MPEC 2020-B23 - 2020 BT - see above
Grabbed MPEC 2020-B24 - 2020 BU - see above
2250Noted that NEODyS has removed 2019 YA2 as an impact risk - see above
Noted that NEODyS has updated its 2019 YP3 risk assessment - see above
Noted that NEODyS has posted 2020 BB as an impact risk - see above
Noted that NEODyS has posted 2020 BH as an impact risk - see above
2040Generated Traffic Report
1630Noted that JPL Sentry has updated its 2019 YP3 risk assessment - see above
Noted that JPL Sentry has updated its 2020 BB risk assessment - see above
Grabbed MPEC 2020-B11 - Daily Orbit Update - see above
Grabbed MPEC 2020-B12 - 2020 BH - see above
Grabbed MPEC 2020-B13 - 2020 BJ - see above
Grabbed MPEC 2020-B14 - 2020 BK - see above
Grabbed MPEC 2020-B15 - 2020 BL - see above
Grabbed MPEC 2020-B16 - 2020 BM - see above
Grabbed MPEC 2020-B17 - 2020 BN - see above
Grabbed MPEC 2020-B18 - 2020 BO - see above
Grabbed MPEC 2020-B19 - 2020 BP - see above
Grabbed MPEC 2020-B20 - 2020 BQ - see above
Grabbed MPEC 2020-B21 - 2020 BR - see above
0500Grabbed MPEC 2020-B10 - 2020 BE - see above
0256Noted that JPL Sentry has posted 2020 BB as an impact risk - see above
Grabbed MPEC 2020-B08 - 2020 BC - see above
Grabbed MPEC 2020-B09 - 2020 BD - see above
0130Grabbed MPEC 2020-B07 - 2020 BB - see above