2020-02-15 Tracking News

Contents on 15 February '20

IAU Minor Planet Center
- NEOCP Activity -- 33 listings
- New MPECs -- six MPECs
Observers -- 37 observers
Impact Risk Monitoring -- eight objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1101 risk-listed objects, 60 have had news in the last 31 days. Updated at 2030 UTC on 15 Feb.
Earth's Busy Neighborhood traffic page
Ephemerides for risk-listed objects & close passers
News archive (old) & news image catalog (discontinued)
Object Links - mainly for radar targets & close passers (mostly discontinued)
Observing Campaigns (old)

The latest A/CC news is available via framed access, 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-C137 time-stamped "12:07 UT" - Daily Orbit Update - see below
MPEC 2020-C138 time-stamped "18:12 UT" - 2020 CG2 - see below
MPEC 2020-C139 time-stamped "18:16 UT" - 2018 CW2 - see below
MPEC 2020-C140 time-stamped "18:43 UT" - 2020 CH2 - see below
MPEC 2020-C141 time-stamped "18:45 UT" - 2020 CJ2 - see below
MPEC 2020-C142 time-stamped "18:49 UT" - 2020 CK2

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

K20C02K 2020 CK2 (risk listed, Earth MOID=0.1 LD, H=29.3 ~5m, close passer) was picked up at 1207 UT on 14 Feb. by the Mt. Lemmon Survey (MLS), observing it at Feb. 14.51-52p4. This detection was confirmed by Visnjan Obs. (Feb. 14.93p4 & 15.00-01p3) and Astronomical Research Obs. Westfield (Feb. 15.25-26p4).

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

K20C02J 2020 CJ2 (Earth MOID=1.1 LD, H=27.2 ~12m) was picked up at 1134 UT on 14 Feb. by MLS, observing it at Feb. 14.48-50p4. This detection was confirmed by the Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) (Feb. 14.54p4), Steward Obs. Mt. Lemmon Station (Feb. 14.54p3 & 15.31-32p4), Visnjan Obs. (Feb. 14.94-95p3), St. Pardon de Conques Obs. (Feb. 14.95-96p2 & 15.02p1), Schiaparelli Obs. (Feb. 14.99-01p2), GiaGa Obs. (Feb. 15.02-05p2), and ARO Westfield (Feb. 15.29-30p5).

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

K20C02H 2020 CH2 (small asteroid, H=24.7 ~39m) was picked up at 0705 UT on 14 Feb. by MLS, observing it at Feb. 14.30-31p4. This detection was confirmed by Farpoint Obs. (Feb. 14.36-37p5), Steward Mt. Lemmon Sta. (Feb. 14.44-45p4 & 15.14p4), Visnjan Obs. (Feb. 14.78p3 & 14.89p3), Schiaparelli Obs. (Feb. 14.82-83p3), Pascoli Obs. (Feb. 14.86-88p3), St. Pardon de Conques Obs. (Feb. 14.87-91p4), SATINO-1 (Feb. 14.88-92p3), Loiano Obs. (Feb. 14.88-90p4), Bernezzo Obs. (Feb. 14.92-93p3), Castelmartini Obs. (Feb. 14.92-93p5), Farra d'Isonzo Obs. (Feb. 14.95-97p4), GiaGa Obs. (Feb. 14.95-98p3), Dax Obs. (Feb. 15.03-04p3), Squirrel Valley Obs. (Feb. 15.08-10p5), San Marcello Pistoiese Obs. (Feb. 15.10p3), ARO Westfield (Feb. 15.16p4), Cordell-Lorenz Obs. (Feb. 15.18-21p4), Sandlot Obs. (Feb. 15.22-23p3), and Rokycany Obs. (Feb. 15.76p3).

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

K18C02W 2018 CW2 (Earth MOID=1.7 LD, H=25.8 ~23m) from the Zwicky Transient Facility (ZTF) (Feb. 14.25p2, 14.31-33p6 & 15.27-30p8), Visnjan Obs. (Feb. 14.81p4 & 14.86-87p5), St. Pardon de Conques Obs. (Feb. 14.89-90p3), Bernezzo Obs. (Feb. 14.90p3), GiaGa Obs. (Feb. 14.91-93p3), Dax Obs. (Feb. 14.92-93p4), Schiaparelli Obs. (Feb. 14.95-97p3), Pascoli Obs. (Feb. 14.95-96p3), Farra d'Isonzo Obs. (Feb. 14.97-98p4), Castelmartini Obs. (Feb. 14.98-99p5), San Marcello Pistoiese Obs. (Feb. 15.09-10p4), SATINO-1 (Feb. 15.12-15p3), Squirrel Valley Obs. (Feb. 15.12-14p5), Mountainville Obs. (Feb. 15.13-14p2 & 15.18-19p2), Cordell-Lorenz Obs. (Feb. 15.18p2), ARO Westfield (Feb. 15.21-22p5), Steward Mt. Lemmon Sta. (Feb. 15.22p4), and Rokycany Obs. (Feb. 15.74p3)

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

K20C02G 2020 CG2 (Earth MOID=0.5 LD, H=24.5 ~43m) was picked up at 0329 UT on 14 Feb. by ZTF, observing it at Feb. 14.15-17p4. This detection was confirmed by Pan-STARRS 1 (PS1) (Dec. 30.49-50p2 at G=23.1-7, Jan. 1.44-48p4 at G=22.4-23.3, 2.45-49p4 at G=22.6-9, 24.40-41p2 at G=21.3 & 26.30-33p3 at G=21.1-3), Pan-STARRS 2 (PS2) (Jan. 18.41-43p2 at G=21.9-22.9 & Feb. 3.33-36p3 at G=21.6-22.1), Visnjan Obs. (Feb. 14.76-77p6), SATINO-1 (Feb. 14.82p5), St. Pardon de Conques Obs. (Feb. 14.85-86p4), GiaGa Obs. (Feb. 14.86-88p3), Bernezzo Obs. (Feb. 14.87-88p5), Dax Obs. (Feb. 14.87-88p4), Schiaparelli Obs. (Feb. 14.89-91p5), Farra d'Isonzo Obs. (Feb. 14.94-95p4), ARO Westfield (Feb. 15.04p3), Cordell-Lorenz Obs. (Feb. 15.11-14p9), Wiggins Obs. (Feb. 15.16-17p10), ATLAS Mauna Loa (Feb. 15.26-28p4), Rokycany Obs. (Feb. 15.73p5), and Dettelbach Vineyard Obs. (Feb. 15.73-74p3).

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

Observations of risk-listed objects
K20C01E 2020 CE1 (small asteroid, arc=13 days, H=25.8 ~23m) from the Spacewatch 1.8m telescope (Feb. 15.28-32p3 at R=22.8-23.0)
K20B14J 2020 BJ14 (small asteroid, Q=4.786 AU, arc=16 days, H=24.2 ~49m, close passer) from Steward Mt. Lemmon Sta. (Feb. 15.27-28p3 at G=20.6-22.2)
K20B00H 2020 BH (small asteroid, arc=28 days, H=28.2 ~8m, close passer, NHATS target) from Spacewatch 1.8m (Feb. 15.35-39p3 at R=22.6-23.3)
K19Y01V 2019 YV1 (small asteroid, arc=44 days, H=25.2 ~31m, close passer, NHATS target) from ARO Westfield (Jan. 14.10-14p2 at V=22.2-6)
Observations of recently (no longer) risk-listed objects
K20B08C 2020 BC8 (Q=4.048 AU, arc=75 days, H=20.0 ~339m) from Steward Mt. Lemmon Sta. (Feb. 15.11-12p4 at G=21.4-22.7)
Observations of close-passing objects
K12R15K 2012 RK15 (arc=2 opp, H=23.4 ~71m) from MLS (Feb. 14.34-36p4)
J95C00R 1995 CR from MLS (Feb. 14.32-33p4)
Observation campaigns (NHATS targets, radar support)
K20C01U 2020 CU1 (arc=11 days, H=23.9 ~56m, NHATS) from Steward Mt. Lemmon Sta. (Feb. 15.38p4 at G=21.1-22.9)
K20B09V 2020 BV9 (arc=21 days, H=26.1 ~20m, NHATS) from Spacewatch 1.8m (Feb. 15.24-25p2)
K20B08E 2020 BE8 (arc=113 days, H=25.2 ~31m, NHATS) from MLS (Feb. 14.34-36p4) and Steward Mt. Lemmon Sta. (Feb. 15.45-46p4)
K16CO6O 2016 CO246 (arc=5 opp, H=25.8 ~23m, NHATS) from Steward Mt. Lemmon Sta. (Feb. 15.36-37p4)
K11A24M 2011 AM24 (arc=3 opp, H=20.5 ~269m, NHATS) from MLS (Feb. 14.44-46p4)
-- NHATS target table
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20C01G 2020 CG1 (arc=14 days, H=24.1 ~51m) from Steward Mt. Lemmon Sta. (Feb. 15.35-36p4)
K20C00X 2020 CX (arc=13 days, H=23.2 ~78m) from ARO Westfield (Feb. 14.34p3)
K20C00H 2020 CH (arc=13 days, H=25.3 ~29m) from ARO Westfield (Feb. 14.42-43p5)
K20C00E 2020 CE (arc=23 days, H=25.0 ~34m) from CSS-Kuiper (Feb. 14.53p3 at G=20.9-22.2)
K20B14L 2020 BL14 (arc=17 days, H=25.2 ~31m) from Steward Mt. Lemmon Sta. (Feb. 15.38-39p4)
K20B12A 2020 BA12 (arc=81 days, H=24.3 ~47m) from Steward Mt. Lemmon Sta. (Feb. 15.33-34p4)
K20B11Z 2020 BZ11 (arc=27 days, H=22.1 ~129m) from Wishing Star Obs. (Feb. 15.15p3) and Petit Jean Mtn. South Obs. (PJMSO) (Feb. 15.24-25p7)
K20B10L 2020 BL10 (arc=26 days, H=25.0 ~34m) from Steward Mt. Lemmon Sta. (Feb. 15.34-35p4)
K20B10A 2020 BA10 (arc=20 days, H=25.5 ~27m) from ARO Westfield (Feb. 14.36-37p3)
K20B06P 2020 BP6 (arc=49 days, H=22.8 ~93m) from Steward Mt. Lemmon Sta. (Feb. 15.23-24p3)
K20B05H 2020 BH5 (arc=24 days, H=23.5 ~68m) from Steward Mt. Lemmon Sta. (Feb. 15.28-31p4)
K20B01U 2020 BU1 (Q=4.831 AU, arc=28 days, H=23.0 ~85m) from Spacewatch 1.8m (Feb. 15.41-42p3)
K19Y04P 2019 YP4 (arc=49 days, H=22.5 ~107m) from Steward Mt. Lemmon Sta. (Feb. 15.28-31p4)
K19W05E 2019 WE5 (arc=79 days, H=23.2 ~78m) from Steward Mt. Lemmon Sta. (Feb. 15.45-46p4)
K15DK0D 2015 DD200 (arc=2 opp, H=22.8 ~93m) from MLS (Feb. 14.34-35p3)
K15DF5J 2015 DJ155 (arc=2 opp, H=24.0 ~54m) from MLS (Feb. 14.34-35p4)
K19Y02D 2019 YD2 (arc=2 opp, H=21.8 ~148m) from MLS (Feb. 14.53-54p4)
K19X01N 2019 XN1 (arc=4 opp, H=22.0 ~135m) from Mirasteilas Obs. (Feb. 14.97-98p3) and PJMSO (Feb. 15.29-30p6)
Observations of other objects
K20B15N 2020 BN15 from Steward Mt. Lemmon Sta. (Feb. 15.39p3)
K20B14P 2020 BP14 from ROASTERR-1 (Feb. 12.86-87p2)
K20B10N 2020 BN10 (arc=23 days, H=20.9 ~224m) from Spacewatch 1.8m (Feb. 15.09-10p2)
K20B08S 2020 BS8 (arc=28 days, H=20.7 ~245m) from Steward Mt. Lemmon Sta. (Feb. 15.33p3)
K20B08G 2020 BG8 (arc=53 days, H=21.0 ~214m) from Steward Mt. Lemmon Sta. (Feb. 15.33-34p4)
K20B02S 2020 BS2 (Q=4.559 AU, arc=27 days, H=20.4 ~282m) from Steward Mt. Lemmon Sta. (Feb. 15.34p4)
K20B02E 2020 BE2 (arc=27 days, H=20.1 ~323m) from PJMSO (Feb. 15.31-32p6)
K20A03F 2020 AF3 (arc=41 days, H=20.4 ~282m) from Steward Mt. Lemmon Sta. (Feb. 15.25-27p4)
K20A00Q 2020 AQ from ARO Westfield (Jan. 17.08-10p3 at V=21.9-22.1)
K19Y07G 2019 YG7 (Q=4.977 AU, arc=58 days, H=18.6 ~645m) from Steward Mt. Lemmon Sta. (Feb. 15.23-24p4)
K19Y04K 2019 YK4 (arc=31 days, H=20.3 ~295m) from ARO Westfield (Jan. 14.22p3)
K19Y04H 2019 YH4 (i=42.8°, arc=67 days, H=20.0 ~339m) from the Spacewatch 0.9m telescope (Feb. 15.14p2)
K19X01G 2019 XG1 (Q=4.163 AU, arc=2 opp, H=19.1 ~513m) from the Catalina Sky Survey (CSS) (Feb. 14.26-27p4) and PJMSO (Feb. 15.28-29p6)
K19W06B 2019 WB6 (arc=82 days, H=20.6 ~257m) from Mirasteilas Obs. (Feb. 14.91-93p3) and PJMSO (Feb. 15.32-33p6)
K19W03F 2019 WF3 (arc=82 days, H=20.9 ~224m) from Spacewatch 0.9m (Feb. 15.10-11p3)
K19V06N 2019 VN6 (arc=102 days, H=18.0 ~851m) from MLS (Feb. 14.23-25p3 at G=21.4-22.4)
K19U11B 2019 UB11 (Q=4.595 AU, arc=172 days, H=20.6 ~257m) from ARO Westfield (Jan. 14.16p4)
K19T04L 2019 TL4 (Q=5.087 AU, arc=139 days, H=19.1 ~513m) from Steward Mt. Lemmon Sta. (Feb. 15.10p3)
K19S04Q 2019 SQ4 (Q=4.075 AU, arc=144 days, H=21.3 ~186m) from ARO Westfield (Jan. 17.00-01p2 at V=22.2)
K19P02R 2019 PR2 (Q=10.375 AU, arc=165 days, H=18.8 ~589m) from ARO Westfield (Jan. 14.28-29p7)
K19N01M 2019 NM1 (arc=2 opp, H=20.9 ~224m) from MLS (Feb. 14.34-36p4)
K17M04X 2017 MX4 (arc=4 opp, H=20.8 ~234m) from CSS (Feb. 14.30-32p4) and Mirasteilas Obs. (Feb. 14.95-96p3)
K17D15U 2017 DU15 (i=48.0°, arc=3 opp, H=20.8 ~234m) from MLS (Feb. 14.32-34p3)
K16U80T 2016 UT80 (arc=3 opp, H=19.0 ~537m) from ATLAS Mauna Loa (Feb. 14.26p2 & 14.31-32p2)
K16GL5Z 2016 GZ215 (arc=3 opp, H=20.8 ~234m) from ARO Westfield (Feb. 14.37-38p3)
K15XC8L 2015 XL128 (Q=4.392 AU, arc=4 opp, H=17.9 ~891m) from ATLAS Mauna Loa (Feb. 15.25-27p4)
K15O78X 2015 OX78 (i=40.4°, arc=3 opp, H=20.0 ~339m) from CSS (Feb. 14.17-18p2)
K14Y35D 2014 YD35 (arc=2 opp, H=21.0 ~214m) from CSS (Feb. 14.27-29p3)
K13A52W 2013 AW52 (arc=5 opp, H=20.0 ~339m) from ARO Westfield (Jan. 14.18-19p4)
K12B23S 2012 BS23 (arc=3 opp, H=21.4 ~178m) from Spacewatch 1.8m (Feb. 15.18-20p2)
K11C04T 2011 CT4 (arc=3 opp, H=20.5 ~269m) from MLS (Feb. 14.25-27p4)
K10D01N 2010 DN1 (arc=3 opp, H=18.9 ~562m) from MLS (Feb. 14.14-16p3)
K08Y32X 2008 YX32 (arc=6 opp, H=20.8 ~234m) from ARO Westfield (Feb. 14.44-45p6) and CSS (Feb. 14.49-51p4)
K08E05E 2008 EE5 (i=44.8°, arc=4 opp, H=19.7 ~389m) from Castelmartini Obs. (Feb. 14.79p3)
K05S00Q 2005 SQ (arc=4 opp, H=20.1 ~323m) from MLS (Feb. 14.32-34p4) and PJMSO (Feb. 15.25-26p5)
K04M00D 2004 MD (arc=5 opp, H=20.1 ~323m) from ARO Westfield (Feb. 14.38-39p5)
r9940 539940 2017 HW1 from CSS (Feb. 14.47-48p4)
q5364 525364 2005 CL7 from Castelmartini Obs. (Feb. 14.89-90p3)
p1523 511523 2014 QS439 from CSS (Feb. 14.21-22p4) and Wishing Star Obs. (Feb. 15.08-09p3)
o4074 504074 2006 AD from Castelmartini Obs. (Feb. 14.75-76p3)
m3878 483878 2005 YS165 from CSS (Feb. 14.47-49p4)
k3282 463282 2012 HR15 from CSS (Feb. 14.45-47p4)
j9386 459386 2012 KJ11 from CSS (Feb. 14.26-27p4) and Wishing Star Obs. (Feb. 15.12-14p3)
j8745 458745 2011 QY37 from MLS (Feb. 14.21-22p4)
j5554 455554 2004 MQ1 from MLS (Feb. 14.48-50p4)
j5322 455322 2002 NX18 from MLS (Feb. 14.27-29p4)
f6591 416591 2004 LC2 from CSS (Feb. 14.23-25p4) and Wishing Star Obs. (Feb. 15.10-11p3)
f5267 415267 2013 BQ45 from CSS (Feb. 14.21-22p4)
Z4101 354101 2001 YF1 from MLS (Feb. 14.09-11p4 at G=21.1-22.4)
Z4030 354030 2001 RB18 from MLS (Feb. 14.16-18p4)
X1876 331876 2004 CL from CSS (Feb. 14.14-16p4)
X1792 331792 2003 MT2 from MLS (Feb. 14.23-25p4)
X1769 331769 2003 BQ35 from MLS (Feb. 14.32-34p4)
V9988 319988 2007 DK from MLS (Feb. 14.23-25p4 at G=21.8-22.6)
P7744 257744 2000 AD205 from MLS (Feb. 14.25-27p4)
O8926 248926 2006 WZ2 from CSS (Feb. 14.21-23p4)
N7805 237805 2002 CF26 from CSS (Feb. 14.15-16p3)
L4088 214088 2004 JN13 from Castelmartini Obs. (Feb. 14.90-91p3)
G3696 163696 2003 EB50 from CSS (Feb. 14.12-14p4)
G3694 163694 2003 DP13 from MLS (Feb. 14.34-36p4)
G2080 162080 1998 DG16 from CSS (Feb. 14.25-27p4)
F9454 159454 2000 DJ8 from ATLAS Mauna Loa (Feb. 14.37-39p3)
F4029 154029 2002 CY46 from MLS (Feb. 14.46-48p4)
F3958 153958 2002 AM31 from MLS (Feb. 14.32-34p4)
F3267 153267 2001 CB32 from CSS (Feb. 14.12-13p4) and Castelmartini Obs. (Feb. 14.78p3)
F2679 152679 1998 KU2 from MLS (Feb. 14.25-27p4)
E3947 143947 2003 YQ117 from ARO Westfield (Jan. 14.28-29p6)
D8846 138846 2000 VJ61 from Wishing Star Obs. (Feb. 15.03-05p3)
D8205 138205 2000 EZ148 from MLS (Feb. 14.42-44p4)
D7199 137199 1999 KX4 from Wishing Star Obs. (Feb. 14.96p3)
D7099 137099 1998 YW3 from ARO Westfield (Feb. 14.41p7)
D7064 137064 1998 WP5 from CSS (Feb. 14.47-49p3)
D6993 136993 1998 ST49 from CSS (Feb. 14.36-38p4) and ARO Westfield (Feb. 14.39p5)
D6582 136582 1992 BA from MLS (Feb. 14.30-32p4) and Wishing Star Obs. (Feb. 15.17p3)
A6538 106538 2000 WK63 from Castelmartini Obs. (Feb. 14.81-82p2)
A5141 105141 2000 NF11 from MLS (Feb. 14.14-16p4)
99248 99248 2001 KY66 from ATLAS Mauna Loa (Feb. 14.26-27p2 & 14.31-32p2)
90367 90367 2003 LC5 from ARO Westfield (Feb. 14.42p3) and CSS (Feb. 14.47-48p4)
89830 89830 2002 CE from ARO Westfield (Feb. 14.40p7)
85990 85990 1999 JV6 from MLS (Feb. 14.11-13p4)
68350 68350 2001 MK3 from ARO Westfield (Feb. 14.45-46p3)
52768 52768 1998 OR2 from Sabadell Obs. (Feb. 13.99p2), CSS (Feb. 14.21-23p4), and Wishing Star Obs. (Feb. 15.01-02p3)
36284 36284 2000 DM8 from MLS (Feb. 14.32-34p4)
35107 35107 1991 VH from ARO Westfield (Jan. 14.33-34p4) and PJMSO (Feb. 15.30-31p8)
34613 34613 2000 UR13 from MLS (Feb. 14.25-27p4)
30825 30825 1990 TG1 from Castelmartini Obs. (Feb. 14.87-88p3)
18172 18172 2000 QL7 from CSS (Feb. 14.19-21p4)
15745 15745 Yuliya (1991 PM5) from MLS (Feb. 14.36-38p4)
13651 13651 1997 BR from MLS (Feb. 14.16-18p4)
12923 12923 Zephyr (1999 GK4) from MLS (Feb. 14.25-27p4)
11405 11405 1999 CV3 from Castelmartini Obs. (Feb. 14.85-86p3)
10145 10145 1994 CK1 from MLS (Feb. 14.28-29p4)
06455 6455 1992 HE from CSS (Feb. 14.09-11p3)
05693 5693 1993 EA from MLS (Feb. 14.44-45p4) and Calar Alto Schmidt (Feb. 14.92-95p4)
05646 5646 1990 TR from MLS (Feb. 14.42-44p4)
04450 4450 Pan (1987 SY) from ATLAS Mauna Loa (Feb. 14.26-27p2 & 14.31-32p2)
01627 1627 Ivar (1929 SH) from MLS (Feb. 14.30-32p4)

Observers on 15 February '20

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

Code	Observer / observatory
`H21`	Astronomical 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
`T08`	ATLAS Mauna Loa in Hawaii, 6 in MPECs 2020-C137 & 2020-C138 -- 2020 CG2, 2016 UT80, 2015 XL128, 99248, 159454, 4450
`C77`	Bernezzo Obs. in Italy, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
`Z84`	Calar Alto Schmidt in Spain, 1 in MPEC 2020-C137 -- 5693
`160`	Castelmartini 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
`703`	Catalina 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
`V06`	Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 2 in MPECs 2020-C137 & 2020-C141 -- 2020 CJ2, 2020 CE
`850`	Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
`958`	Dax Obs. in France, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
`K87`	Dettelbach Vineyard Obs. in Germany, 1 in MPEC 2020-C138 -- 2020 CG2
`734`	Farpoint Obs. in Kansas, 1 in MPEC 2020-C140 -- 2020 CH2
`595`	Farra d'Isonzo Obs. in Italy, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
`203`	GiaGa Obs. in Italy, 4 in MPECs 2020-C138, 2020-C139, 2020-C140 & 2020-C141 -- 2020 CJ2, 2020 CH2, 2020 CG2, 2018 CW2
`598`	Loiano Obs. in Italy, 1 in MPEC 2020-C140 -- 2020 CH2
`B67`	Mirasteilas Obs. in Switzerland, 3 in MPEC 2020-C137 -- 2019 XN1, 2019 WB6, 2017 MX4
`V01`	Mountainville Obs. in Utah, 1 in MPEC 2020-C139 -- 2018 CW2
`G96`	Mt. 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
`F51`	Pan-STARRS 1 in Hawaii, 1 in MPEC 2020-C138 -- 2020 CG2
`F52`	Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-C138 -- 2020 CG2
`K63`	Pascoli Obs. in Italy, 2 in MPECs 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2
`H45`	Petit 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
`L04`	ROASTERR-1 in Romania, 1 in MPEC 2020-C137 -- 2020 BP14
`K61`	Rokycany Obs. in the Czech Republic, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
`619`	Sabadell Obs. in Spain, 1 in MPEC 2020-C137 -- 52768
`104`	San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2020-C140 -- 2020 CH2
`C95`	SATINO-1 in France, 3 in MPECs 2020-C138, 2020-C139 & 2020-C140 -- 2020 CH2, 2020 CG2, 2018 CW2
`204`	Schiaparelli Obs. in Italy, 4 in MPECs 2020-C138, 2020-C139, 2020-C140 & 2020-C141 -- 2020 CJ2, 2020 CH2, 2020 CG2, 2018 CW2
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2020-C137 -- 2019 YH4, 2019 WF3
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPEC 2020-C137 -- 2020 CE1, 2020 BV9, 2020 BU1, 2020 BN10, 2020 BH, 2012 BS23
`W34`	Squirrel Valley Obs. in North Carolina, 2 in MPECs 2020-C139 & 2020-C140 -- 2020 CH2, 2018 CW2
`I93`	St. 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
`I52`	Steward 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
`L01`	Visnjan 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
`718`	Wiggins Obs. in Utah, 1 in MPEC 2020-C138 -- 2020 CG2
`I15`	Wishing Star Obs. in Rhode Island, 8 in MPEC 2020-C137 -- 2020 BZ11, 52768, 511523, 459386, 416591, 138846, 137199, 136582
`I41`	Zwicky 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 CK2	JPL Sentry	2030	2045-2118	89	0.0017704142786	-4.95	-5.24	0	JPL: 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 CF2	NEODyS	1610	2072-2116	21	6.58e-06	-6.87	-7.21	0	NEODyS: "Based on 19 optical observations (of which 2 are rejected as outliers) from 2020-02-13.349 to 2020-02-14.838."

2020 CE1	JPL Sentry	1610	2095-2095	2	5.557e-06	-5.71	-5.98	0	JPL: 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.
2020 CE1	NEODyS	1610	2095	2	5.58e-06	-5.72	-5.99	0	NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2020-02-02.153 to 2020-02-15.320."

2020 BJ14	JPL Sentry	1610	2082-2087	2	1.74832e-05	-4.51	-4.51	0	JPL: 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 BH	JPL Sentry	1610	2104-2111	4	2.3294e-05	-6.65	-6.83	0	JPL: 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.
2020 BH	NEODyS	1610	2104-2117	10	1.9e-06	-7.78	-8.08	0	NEODyS: "Based on 57 optical observations (of which 1 are rejected as outliers) from 2020-01-18.333 to 2020-02-15.393."

2019 YV1	JPL Sentry	1610	2090-2119	8	1.1235915e-05	-5.47	-5.62	0	JPL: 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 AA21	NEODyS	1610	2027-2118	54	1.04e-06	-6.15	-6.64	0	NEODyS: "Based on 7 optical observations (of which 0 are rejected as outliers) from 2017-01-03.461 to 2017-01-04.441."

2008 JD33	JPL Sentry	1610	2021-2117	156	2.430918e-07	-7.82	-9.12	0	JPL: 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.

2030	Noted that JPL Sentry has posted 2020 CK2 as an impact risk - see above
1900	Grabbed MPEC 2020-C140 - 2020 CH2 - see above Grabbed MPEC 2020-C141 - 2020 CJ2 - see above Grabbed MPEC 2020-C142 - 2020 CK2 - see above
1834	Grabbed MPEC 2020-C138 - 2020 CG2 - see above Grabbed MPEC 2020-C139 - 2018 CW2 - see above
1610	Noted 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

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