Contents on 12 March '20
- IAU Minor Planet Center
- NEOCP Activity -- eleven listings
- New MPECs -- two MPECs
- Observers -- 21 observers
- Impact Risk Monitoring -- four objects
- Chronology
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page
Of 1099 risk-listed objects, 51 have had news in the last 31 days. Updated at 1551 UTC on 12 March.
- 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 12 March '20
The MPC's NEO Confirmation Page has 11 listings
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eleven objects listed. Of these, eight were "one nighters." So far The Tracking News has counted a total of twelve 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 12 March '20
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2020-E43 time-stamped "12:06 UT" - Daily Orbit Update - see below
- MPEC 2020-E44 time-stamped "18:14 UT" - 2020 EN
MPEC 2020-E44 - "18:14 UT" - 2020 EN
- K20E00N 2020 EN (H=18.3 ~741m) was picked up at 0218 UT on 5 March by the Mt. Lemmon Survey (MLS), observing it at March 5.10-12p4 and 6.11p3. This detection was confirmed by Steward Obs. Mt. Lemmon Station (March 5.14-16p6), Great Shefford Obs. (March 6.81-85p3), Spacewatch via Kitt Peak Natl. Obs. (KPNO) (March 7.11-12p3), Schiaparelli Obs. (March 11.80-82p2), and Sandlot Obs. (March 12.07-09p4).
<< DOU on 12 March '20 >> MPEC 2020-E43 - "12:06 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K20A03N 2020 AN3 (arc=114 days, H=20.5 ~269m, close passer) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (Feb. 29.14-15p3)
- K19A05S 2019 AS5 (small asteroid, arc=3 days, H=32.3 ~1m, close passer, NHATS target) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 Jan. 10.46p1 at G=23.89 & 2019 Jan. 11.49p1 at G=24.59)
- Observations of recently (no longer) risk-listed objects
- K20D04P 2020 DP4 (small asteroid, arc=9 days, H=25.2 ~31m, close passer, NHATS target) from Holmes/CTIO (March 4.25p3)
- K20D02R 2020 DR2 (arc=19 days, H=18.8 ~589m) from Holmes/CTIO (March 3.10p3 & 4.29-31p4)
- Observations of close-passing objects
- K20D03E 2020 DE3 (arc=10 days, H=23.9 ~56m) from Holmes/CTIO (Feb. 29.30-31p5)
- K20C03B 2020 CB3 (arc=18 days, H=24.5 ~43m) from Holmes/CTIO (March 4.14-17p3 at G=22.5)
- Observation campaigns (NHATS targets, radar support)
- K20D04T 2020 DT4 (arc=9 days, H=25.5 ~27m, NHATS) from Holmes/CTIO (March 3.27-28p3)
- K20C03A 2020 CA3 (arc=21 days, H=25.2 ~31m, NHATS) from Holmes/CTIO (Feb. 29.22-23p3, March 3.20-21p4 & 4.13-14p3)
- K20C01U 2020 CU1 (arc=32 days, H=24.1 ~51m, NHATS) from Holmes/CTIO (March 4.26-27p3)
- K20A02W 2020 AW2 (arc=58 days, H=23.2 ~78m, NHATS) from Holmes/CTIO (March 3.32-33p3 at G=22.0-22.2)
- K19Y03W 2019 YW3 (arc=73 days, H=22.9 ~89m, NHATS) from Holmes/CTIO (Feb. 29.31-32p3 & March 3.35p3)
- K19X02Z 2019 XZ2 (arc=95 days, H=24.7 ~39m, NHATS) from Holmes/CTIO (Feb. 29.35-37p3)
- K09O05S 2009 OS5 (arc=3 opp, H=24.5 ~43m, NHATS) from Astronomical Research Obs. Westfield (March 7.32-33p3 at V=22.1-3)
-- NHATS target table - Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
- K20D05C 2020 DC5 (arc=7 days, H=23.2 ~78m) from ARO Westfield (March 7.23-25p3 at V=22.0-22.2)
- K20D04U 2020 DU4 (arc=5 days, H=23.5 ~68m) from Holmes/CTIO (March 3.28-30p3)
- K20D04J 2020 DJ4 (arc=6 days, H=22.9 ~89m) from Holmes/CTIO (March 4.09-10p3)
- K20D04H 2020 DH4 (arc=6 days, H=24.4 ~45m) from Holmes/CTIO (March 3.31-32p3)
- K20D04B 2020 DB4 (arc=7 days, H=25.4 ~28m) from Holmes/CTIO (March 3.25-26p3)
- K20D03Y 2020 DY3 (arc=5 days, H=24.7 ~39m) from Holmes/CTIO (March 3.13-15p3)
- K20D03Q 2020 DQ3 (arc=9 days, H=24.9 ~35m) from Holmes/CTIO (March 3.23-24p4, 4.19-20p3 & 6.11p3)
- K20D03J 2020 DJ3 (arc=7 days, H=24.4 ~45m) from Holmes/CTIO (March 3.08-10p3)
- K20D02Z 2020 DZ2 (arc=13 days, H=24.0 ~54m) from Holmes/CTIO (March 4.10-12p3 at G=23.0)
- K20D02V 2020 DV2 (arc=13 days, H=25.1 ~32m) from Holmes/CTIO (March 3.21-22p4 & 4.11-13p3)
- K20D00N 2020 DN (arc=17 days, H=23.9 ~56m) from Holmes/CTIO (March 4.19-21p2 at G=22.4)
- K20C02N 2020 CN2 (Q=4.146 AU, arc=39 days, H=22.1 ~129m) from Holmes/CTIO (March 3.29-30p3)
- K20C01M 2020 CM1 (arc=33 days, H=22.9 ~89m) from Tholen 2.24m (Feb. 25.67p1)
- K20B15D 2020 BD15 (arc=34 days, H=22.6 ~102m) from Holmes/CTIO (March 3.04-05p2)
- K20B12U 2020 BU12 (arc=37 days, H=22.6 ~102m) from Holmes/CTIO (March 3.23p3 & 4.18p3)
- K20B10X 2020 BX10 (arc=40 days, H=22.6 ~102m) from Holmes/CTIO (March 3.07-08p3 & 6.10-11p3)
- K20B02W 2020 BW2 (arc=45 days, H=24.5 ~43m) from Holmes/CTIO (March 4.20-21p3 at V=22.1)
- K19Y04P 2019 YP4 (arc=68 days, H=22.5 ~107m) from Holmes/CTIO (March 4.15-17p3)
- K19Y00K 2019 YK (arc=79 days, H=24.0 ~54m) from Holmes/CTIO (March 4.28-29p3 at G=22.6)
- K19X01C 2019 XC1 (arc=90 days, H=22.4 ~112m) from Holmes/CTIO (Feb. 29.07-09p3)
- K17RB0E 2017 RE110 (arc=2 opp, H=22.3 ~117m) from Holmes/CTIO (March 3.17-19p3 at G=22.6 & 4.24-26p3 at G=22.4)
- K20D01Y 2020 DY1 (Q=4.145 AU, arc=42 days, H=21.9 ~141m) from Holmes/CTIO (Feb. 29.33p3 & March 3.37-38p2)
- K19Y01L 2019 YL1 (arc=72 days, H=21.9 ~141m) from Holmes/CTIO (Feb. 29.19-20p2)
- Observations of other objects
- K20E00C 2020 EC (Q=4.081 AU, arc=3 days, H=19.5 ~426m) from Holmes/CTIO (March 4.07-08p3)
- K20D03T 2020 DT3 (arc=24 days, H=21.4 ~178m) from Holmes/CTIO (March 3.17-18p4, 4.11p3 & 6.07-08p3), Aorangi Iti Obs. (March 11.39p4), and Pic du Midi Obs. (March 11.87-89p12)
- K20D02G 2020 DG2 (arc=31 days, H=19.6 ~407m) from Holmes/CTIO (Feb. 29.11-12p3, March 3.08-09p3 & 6.06p3)
- K20D00X 2020 DX (arc=24 days, H=20.0 ~339m) from ATLAS Haleakala (March 11.34-37p4)
- K20D00Q 2020 DQ (arc=17 days, H=21.4 ~178m) from Holmes/CTIO (March 3.11-12p2)
- K20C01L 2020 CL1 (i=45.5°, arc=33 days, H=20.0 ~339m) from Holmes/CTIO (Feb. 29.07-08p3, March 3.04-05p3 & 6.04-05p3) and Aorangi Iti Obs. (March 5.36-38p4)
- K20B14P 2020 BP14 (arc=44 days, H=18.5 ~676m) from ATLAS Haleakala (March 11.30-32p4) and Peschiera del Garda Obs. (March 11.79-81p2)
- K20B14D 2020 BD14 (arc=73 days, H=20.9 ~224m) from Holmes/CTIO (Feb. 29.21-22p3, March 3.19-20p3, 4.12-13p3 & 6.09-10p3)
- K20B13P 2020 BP13 (arc=39 days, H=21.3 ~186m) from Holmes/CTIO (March 3.06-07p3) and ARO Westfield (March 7.04-05p3 at V=22.1-4)
- K20B12Z 2020 BZ12 (i=165.5°, Q=14.801 AU, arc=45 days, H=18.2 ~776m) from Holmes/CTIO (Feb. 29.09-10p3 & March 3.07p4)
- K20B12T 2020 BT12 (q=0.236 AU, Q=4.191 AU, arc=46 days, H=19.1 ~513m) from Holmes/CTIO (March 6.08-09p3)
- K20B12S 2020 BS12 (q=0.379 AU, arc=44 days, H=20.1 ~323m) from Holmes/CTIO (Feb. 29.33-34p5)
- K20B09C 2020 BC9 from Holmes/CTIO (Feb. 29.34p3 & March 3.37p2)
- K20B06X 2020 BX6 (Q=4.480 AU, arc=132 days, H=21.7 ~155m) from Holmes/CTIO (Feb. 29.38p3)
- K20B05O 2020 BO5 (arc=44 days, H=21.0 ~214m) from Holmes/CTIO (Feb. 29.28p3 & March 4.26-27p2)
- K20B04A 2020 BA4 (arc=44 days, H=20.3 ~295m) from Holmes/CTIO (March 3.16-17p3)
- K20B02H 2020 BH2 (arc=44 days, H=21.3 ~186m) from Holmes/CTIO (March 3.15-16p2)
- K20A02Z 2020 AZ2 (arc=59 days, H=21.3 ~186m) from Holmes/CTIO (March 4.24p3)
- K20A00K 2020 AK (arc=62 days, H=19.3 ~467m) from Holmes/CTIO (Feb. 29.35-36p3)
- K19Y04H 2019 YH4 (i=42.8°, arc=86 days, H=20.1 ~323m) from Holmes/CTIO (March 6.04-05p3)
- K19X02B 2019 XB2 (arc=94 days, H=20.6 ~257m) from Holmes/CTIO (Feb. 29.04-05p3, March 3.03-05p3 & 6.06-07p3)
- K19X01G 2019 XG1 (Q=4.163 AU, arc=2 opp, H=19.2 ~490m) from Peschiera del Garda Obs. (March 11.94-97p3)
- K19W03F 2019 WF3 (arc=101 days, H=21.0 ~214m) from Holmes/CTIO (March 3.05-06p3)
- K19U04C 2019 UC4 (Q=4.088 AU, arc=2 opp, H=21.2 ~195m) from Holmes/CTIO (Feb. 29.24-25p3)
- K19T07H 2019 TH7 (arc=149 days, H=20.7 ~245m) from Holmes/CTIO (March 3.22-23p3)
- K18B00P 2018 BP (arc=3 opp, H=20.7 ~245m) from SATINO-1 (2019 Dec. 30.00-01p3)
- K17G04K 2017 GK4 (arc=3 opp, H=21.7 ~155m) from Holmes/CTIO (March 2.22-23p3 at V=22.0-22.2, 3.25-27p3 at V=21.6-22.1 & 4.15-17p3 at V=21.0-4)
- K17B32E 2017 BE32 (arc=2 opp, H=19.3 ~467m) from Aorangi Iti Obs. (March 12.38-40p4)
- K16R40F 2016 RF40 (arc=2 opp, H=21.7 ~155m) from Holmes/CTIO (March 2.35-37p3 at V=22.1-3 & 3.37-40p3 at V=21.8-9)
- K13C89L 2013 CL89 (arc=5 opp, H=19.4 ~446m) from Pan-STARRS 2 (PS2) (March 11.40-43p3)
- K00B28O 2000 BO28 (arc=7 opp, H=19.7 ~389m) from ATLAS Mauna Loa (March 11.49-51p4)
- p5010 515010 2009 SK2 from ARO Westfield (March 7.26-28p3 at V=21.6-22.4)
- i8818 448818 2011 UU20 from Gravina Obs. (March 11.92-93p2 at V=17.0-24.0)
- f6584 416584 2004 JB12 from ARO Westfield (March 7.27-29p3 at V=22.0-22.2)
- V5098 315098 2007 EX from ATLAS Mauna Loa (March 11.33-35p4)
- R6732 276732 2004 EV9 from ATLAS Mauna Loa (March 11.32-34p3)
- G3243 163243 2002 FB3 from ATLAS Mauna Loa (March 11.34-36p4)
- G2161 162161 1999 DK3 from ARO Westfield (March 7.07-09p3 at V=22.0-22.4)
- E4861 144861 2004 LA12 from Purple Mtn. Obs. Xuyi Station (March 6.84-87p2)
- D8847 138847 2000 VE62 from ATLAS Mauna Loa (March 11.29-31p4)
- 96744 96744 1999 OW3 from AAAA Buenos Aires Obs. (Feb. 4.21-23p2)
- 52768 52768 1998 OR2 from ARO Westfield (March 7.02-03p5), San Vito Obs. (March 11.75-78p3), program code 1 via Kuban State Univ. Obs. (March 11.76-84p26), Pic du Midi Obs. (March 11.83-84p10), and Gravina Obs. (March 11.87-91p5)
- 40267 40267 1999 GJ4 from ARO Westfield (March 7.03p4), ATLAS Haleakala (March 11.34-36p4), and Gravina Obs. (March 11.79-82p4 at V=16.9-24.3)
- 36284 36284 2000 DM8 from ATLAS Haleakala (March 11.29-31p4) and San Vito Obs. (March 11.82-83p3)
- 35107 35107 1991 VH from ATLAS Haleakala (March 11.41-43p4)
- 30825 30825 1990 TG1 from ATLAS Haleakala (March 11.28-30p4)
- 18172 18172 2000 QL7 from ATLAS Haleakala (March 11.31-34p8)
- 11405 11405 1999 CV3 from ATLAS Haleakala (March 11.27-29p5)
- 10115 10115 1992 SK from ATLAS Mauna Loa (March 11.61-64p4)
- 08566 8566 1996 EN from Xuyi Sta. (March 11.55-59p3)
- 05626 5626 1991 FE from ATLAS Haleakala (March 11.38-41p4) and Xuyi Sta. (March 11.50-53p3)
- 04450 4450 Pan (1987 SY) from ATLAS Haleakala (March 11.25-27p4)
- 01685 1685 Toro (1948 OA) from ATLAS Mauna Loa (March 11.60-62p4)
- 01627 1627 Ivar (1929 SH) from ATLAS Haleakala (March 11.33-36p4), Xuyi Sta. (March 11.50-53p3), and San Vito Obs. (March 11.84-85p3)
Observers on 12 March '20
A total of 21 observers appear in today's MPECs.
Code | Observer / observatory |
---|---|
834 | AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-E43 -- 96744 |
R57 | Aorangi Iti Obs. in New Zealand, 3 in MPEC 2020-E43 -- 2020 DT3, 2020 CL1, 2017 BE32 |
H21 | Astronomical Research Obs. Westfield in Illinois, 8 in MPEC 2020-E43 -- 2020 DC5, 2020 BP13, 2009 OS5, 52768, 515010, 416584, 40267, 162161 |
T05 | ATLAS Haleakala in Hawaii, 11 in MPEC 2020-E43 -- 2020 DX, 2020 BP14, 40267, 36284, 35107, 30825, 18172, 11405, 5626, 4450, 1627 |
T08 | ATLAS Mauna Loa in Hawaii, 7 in MPEC 2020-E43 -- 2000 BO28, 315098, 276732, 163243, 138847, 10115, 1685 |
807| | Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 56 in MPEC 2020-E43 -- 2020 EC, 2020 DZ2, 2020 DY3, 2020 DY1, 2020 DV2, 2020 DU4, 2020 DT4, 2020 DT3, 2020 DR2, 2020 DQ3, 2020 DQ, 2020 DP4, 2020 DN, 2020 DJ4, 2020 DJ3, 2020 DH4, 2020 DG2, 2020 DE3, 2020 DB4, 2020 CU1, 2020 CN2, 2020 CL1, 2020 CB3, 2020 CA3, 2020 BZ12, 2020 BX6, 2020 BX10, 2020 BW2, 2020 BU12, 2020 BT12, 2020 BS12, 2020 BP13, 2020 BO5, 2020 BH2, 2020 BD15, 2020 BD14, 2020 BC9, 2020 BA4, 2020 AZ2, 2020 AW2, 2020 AN3, 2020 AK, 2019 YW3, 2019 YP4, 2019 YL1, 2019 YK, 2019 YH4, 2019 XZ2, 2019 XC1, 2019 XB2, 2019 WF3, 2019 UC4, 2019 TH7, 2017 RE110, 2017 GK4, 2016 RF40 |
K73 | Gravina Obs. in Italy, 3 in MPEC 2020-E43 -- 52768, 448818, 40267 |
J95 | Great Shefford Obs. in England, 1 in MPEC 2020-E44 -- 2020 EN |
695^ | Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2020-E44 -- 2020 EN |
C401 | program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E43 -- 52768 |
G96 | Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-E44 -- 2020 EN |
F52 | Pan-STARRS 2 in Hawaii, 1 in MPEC 2020-E43 -- 2013 CL89 |
A53 | Peschiera del Garda Obs. in Italy, 2 in MPEC 2020-E43 -- 2020 BP14, 2019 XG1 |
586 | Pic du Midi Obs. in France, 2 in MPEC 2020-E43 -- 2020 DT3, 52768 |
D29 | Purple Mtn. Obs. Xuyi Station in China, 4 in MPEC 2020-E43 -- 144861, 8566, 5626, 1627 |
233 | San Vito Obs. in Italy, 3 in MPEC 2020-E43 -- 52768, 36284, 1627 |
H36 | Sandlot Obs. in Kansas, 1 in MPEC 2020-E44 -- 2020 EN |
C95 | SATINO-1 in France, 1 in MPEC 2020-E43 -- 2018 BP |
204 | Schiaparelli Obs. in Italy, 1 in MPEC 2020-E44 -- 2020 EN |
I52 | Steward Obs. Mt. Lemmon Station in Arizona, 1 in MPEC 2020-E44 -- 2020 EN |
T12 | UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2020-E43 -- 2020 CM1, 2019 AS5 |
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. |
Impact Risk Monitoring on 12 March '20
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 AN3 | JPL Sentry | 1550 | 2106-2106 | 1 | 3.692e-08 | -5.32 | -5.32 | 0 | JPL: Computed at 06:30 today Pacific time based on 160 observations spanning 113.95 days (2019-Nov-09.147003 to 2020-Mar-02.1012). Diameter approximately 0.280 km. from weighted mean H=20.44. |
NEODyS | 1550 | 2106 | 1 | 7.71e-08 | -5.02 | -5.02 | 0 | NEODyS: "Based on 169 optical observations (of which 3 are rejected as outliers) from 2019-11-09.148 to 2020-03-02.102." | |
2019 AS5 | JPL Sentry | 1550 | 2085-2085 | 1 | 3.354e-09 | -12.20 | -12.2 | 0 | JPL: Computed at 06:32 today Pacific time based on 20 observations spanning 3.1288 days (2019-Jan-08.35867 to 2019-Jan-11.487437). Diameter approximately 0.001 km. from weighted mean H=32.34. |
NEODyS | 1550 | 2085-2110 | 4 | 1.41e-08 | -11.67 | -11.89 | 0 | NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2019-01-08.359 to 2019-01-11.488." | |
2008 EM68 | JPL Sentry | 1550 | 2020-2116 | 1089 | 1.05924711e-05 | -5.64 | -6.25 | 0 | JPL: Computed at 00:27 April 7th of 2017 Pacific time based on 12 observations spanning .11019 days (2008-Mar-08.25164 to 2008-Mar-08.36183). Diameter approximately 0.010 km. from weighted mean H=27.72. |
2008 EL68 | JPL Sentry | 1550 | 2020-2113 | 592 | 3.06705819e-05 | -5.56 | -6.21 | 0 | JPL: Computed at 11:57 April 9th of 2017 Pacific time based on 8 observations spanning .07124 days (2008-Mar-06.40768 to 2008-Mar-06.47892). Diameter approximately 0.009 km. from weighted mean H=27.92. |
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 12 March '20
Times are UTC for when items were noted or added by The Tracking News.
1839 | Grabbed MPEC 2020-E44 - 2020 EN - see above |
1550 | Noted that JPL Sentry has updated its 2008 EL68 risk assessment - see above Noted that JPL Sentry has updated its 2008 EM68 risk assessment - see above Noted that JPL Sentry has updated its 2019 AS5 risk assessment - see above Noted that NEODyS has updated its 2019 AS5 risk assessment - see above Noted that JPL Sentry has updated its 2020 AN3 risk assessment - see above Noted that NEODyS has updated its 2020 AN3 risk assessment - see above Grabbed MPEC 2020-E43 - Daily Orbit Update - see above |