2020-03-09 Tracking News

Contents on 9 March '20

IAU Minor Planet Center
- NEOCP Activity -- eight listings
- New MPECs -- four MPECs
Observers -- nineteen observers
Impact Risk Monitoring -- four objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 1100 risk-listed objects, 50 have had news in the last 31 days. Updated at 1632 UTC on 9 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 9 March '20

The MPC's NEO Confirmation Page has 8 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of nine 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 9 March '20

Minor Planet Electronic Circulars

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

MPEC 2020-E34 time-stamped "02:33 UT" - 2020 EM - see below
MPEC 2020-E35 time-stamped "12:06 UT" - Daily Orbit Update - see below
MPEC 2020-E36 time-stamped "15:00 UT" - 2012 SV20 - see below
MPEC 2020-E37 time-stamped "16:46 UT" - 2019 GF1

MPEC 2020-E37 - "16:46 UT" - 2019 GF1

K19G01F 2019 GF1 (Earth MOID=4.6 LD, H=27.4 ~11m, NHATS target) from the Mt. Lemmon Survey (MLS) (2018 March 16.26-28p4) and program code "!" (10) via DECam (2019 April 2.23-35p41)

MPEC 2020-E36 - "15:00 UT" - 2012 SV20

K12S20V 2012 SV20 (H=19.9 ~355m) from UH/Tholen NEO Follow-Up 2.24m Telescope (2019 Jan. 9.36-38p2 at G=24.30-33 & 2019 Jan. 10.38p1 at G=24.98)

<< DOU on 9 March '20 >> MPEC 2020-E35 - "12:06 UT" - Daily Orbit Update

Observations of risk-listed objects
K20D02R 2020 DR2 (arc=18 days, H=18.8 ~589m) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (March 2.08-09p4) and Great Shefford Obs. (March 8.94-97p3)
K20A03N 2020 AN3 (arc=114 days, H=20.5 ~269m, close passer) from Holmes/CTIO (March 2.09-10p3)
Observations of close-passing objects
K20D03E 2020 DE3 (arc=10 days, H=23.9 ~56m) from Holmes/CTIO (March 2.32-33p3)
K20D01Z 2020 DZ1 (arc=14 days, H=24.0 ~54m) from Holmes/CTIO (March 2.02-03p4)
K19W03Q 2019 WQ3 from Holmes/CTIO (Jan. 18.16-17p3 at G=22.7-8)
Observation campaigns (NHATS targets, radar support)
K19Y05Q 2019 YQ5 (arc=25 days, H=25.1 ~32m, NHATS) from Holmes/CTIO (Jan. 16.10-11p2 & 18.07-08p3)
K19Y03W 2019 YW3 (arc=73 days, H=22.9 ~89m, NHATS) from Holmes/CTIO (March 2.31p3)
K19Y01G 2019 YG1 (arc=33 days, H=25.2 ~31m, NHATS) from Holmes/CTIO (Jan. 16.15-17p3, 18.15-16p3 & 20.12-14p3)
K19W04T 2019 WT4 (arc=52 days, H=23.9 ~56m, NHATS) from Holmes/CTIO (Jan. 20.14-16p3 at G=22.6)
-- NHATS target table
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K20D04J 2020 DJ4 (arc=6 days, H=22.9 ~89m) from Holmes/CTIO (March 2.18-19p3)
K20D04H 2020 DH4 (arc=6 days, H=24.4 ~45m) from Holmes/CTIO (March 2.29-30p3)
K20D03Y 2020 DY3 (arc=4 days, H=24.7 ~39m) from Holmes/CTIO (March 2.16-17p4)
K20C02A 2020 CA2 (arc=25 days, H=24.3 ~47m) from Holmes/CTIO (March 2.08-10p3 at G=22.3-6)
K20C01W 2020 CW1 (arc=28 days, H=22.7 ~98m) from Holmes/CTIO (March 2.38-39p2)
K20C01N 2020 CN1 (arc=30 days, H=22.6 ~102m) from Holmes/CTIO (March 2.11-13p3)
K20B12U 2020 BU12 (arc=36 days, H=22.6 ~102m) from Holmes/CTIO (March 2.20-21p3)
K20B11J 2020 BJ11 (arc=60 days, H=24.8 ~37m) from Holmes/CTIO (March 2.27-28p3)
K20B09N 2020 BN9 (arc=37 days, H=23.5 ~68m) from Holmes/CTIO (March 2.04-06p3 at G=22.8)
K20B09C 2020 BC9 (arc=40 days, H=23.1 ~81m) from Holmes/CTIO (March 2.36p3)
K20B06A 2020 BA6 (arc=40 days, H=24.2 ~49m) from Holmes/CTIO (March 2.12-15p3 at G=23.1-2)
K20B01U 2020 BU1 (Q=4.827 AU, arc=44 days, H=23.0 ~85m) from Holmes/CTIO (March 2.29-31p3)
K19Y06O 2019 YO6 (arc=35 days, H=22.1 ~129m) from Holmes/CTIO (Jan. 16.18-20p3 & 20.11-13p3)
K19Y06M 2019 YM6 (arc=31 days, H=22.1 ~129m) from Holmes/CTIO (Jan. 16.16p3 & 18.12-13p3)
K19Y04P 2019 YP4 (arc=68 days, H=22.5 ~107m) from Holmes/CTIO (March 2.23-24p3)
K19Y04N 2019 YN4 (arc=19 days, H=22.8 ~93m) from Holmes/CTIO (Jan. 16.18-19p3 at G=22.3)
K19Y00C 2019 YC (arc=35 days, H=22.8 ~93m) from Holmes/CTIO (Jan. 18.13-15p3 at G=21.8 & 20.11-12p3 at G=22.3)
K19X01C 2019 XC1 (arc=90 days, H=22.4 ~112m) from Holmes/CTIO (March 2.25-27p3 at V=22.1-2)
K19U09C 2019 UC9 (arc=93 days, H=23.7 ~62m) from Holmes/CTIO (Jan. 20.15-16p3)
K20D01Y 2020 DY1 (Q=4.146 AU, arc=42 days, H=21.9 ~141m) from Holmes/CTIO (March 2.34-35p4)
K19Y01L 2019 YL1 (arc=72 days, H=21.9 ~141m) from Holmes/CTIO (Jan. 16.17-18p4 & 18.14p3)
K19U05G 2019 UG5 (arc=98 days, H=21.9 ~141m) from Holmes/CTIO (Jan. 16.11-13p3)
Observations of other objects
K20D04M 2020 DM4 from Holmes/CTIO (March 2.25-27p4)
K20D03T 2020 DT3 (arc=18 days, H=21.4 ~178m) from Holmes/CTIO (March 2.19-20p2)
K20D02G 2020 DG2 (arc=27 days, H=19.7 ~389m) from Holmes/CTIO (March 2.04-05p3)
K20D00X 2020 DX (arc=21 days, H=20.0 ~339m) from Holmes/CTIO (March 2.05-07p4)
K20D00Q 2020 DQ (arc=17 days, H=21.5 ~170m) from Holmes/CTIO (March 2.11-12p3)
K20B14X 2020 BX14 (Q=4.825 AU, arc=36 days, H=20.2 ~309m) from Holmes/CTIO (March 2.18p3)
K20B14D 2020 BD14 (arc=71 days, H=20.9 ~224m) from Holmes/CTIO (March 2.21-22p3)
K20B02H 2020 BH2 (arc=43 days, H=21.3 ~186m) from Holmes/CTIO (March 2.16p2)
K19Y03V 2019 YV3 (arc=30 days, H=21.0 ~214m) from Holmes/CTIO (Jan. 16.09-10p3 & 18.09-10p3)
K19X03G 2019 XG3 (Q=4.621 AU, arc=75 days, H=18.8 ~589m) from Holmes/CTIO (Jan. 18.10-11p3)
K19X02Y 2019 XY2 from Holmes/CTIO (Jan. 16.19-20p3 & 18.17-18p3)
K19X02B 2019 XB2 (arc=90 days, H=20.6 ~257m) from Holmes/CTIO (Jan. 16.08-09p3, 20.08-09p3 & March 2.06-07p3)
K19W06R 2019 WR6 (arc=60 days, H=21.4 ~178m) from Holmes/CTIO (Jan. 20.17p3)
K19W00Z 2019 WZ (arc=76 days, H=21.5 ~170m) from Holmes/CTIO (Jan. 18.12-13p3)
K19U07G 2019 UG7 (Q=4.729 AU, arc=101 days, H=21.6 ~162m) from Holmes/CTIO (Jan. 18.16p3)
K19U02J 2019 UJ2 (arc=128 days, H=19.5 ~426m) from Holmes/CTIO (Jan. 20.05-06p3)
K19T00O 2019 TO (arc=109 days, H=21.6 ~162m) from Holmes/CTIO (Jan. 18.09-11p3 at G=22.6-7)
K17M04X 2017 MX4 (arc=4 opp, H=20.8 ~234m) from SATINO-1 (2019 Dec. 31.11-12p2)
i8818 448818 2011 UU20 from Al-Fulaij Obs. (March 8.64-65p4)
G3243 163243 2002 FB3 from Geyserland Obs. (March 8.35p4)
52768 52768 1998 OR2 from Sormano Obs. (March 7.86p2) and program code 1 via Kuban State Univ. Obs. (March 8.68-74p27 & 8.79-95p80)
05660 5660 1974 MA from Geyserland Obs. (March 8.32-34p6)
01866 1866 Sisyphus (1972 XA) from MASTER Tavrida (March 7.70-72p2)

MPEC 2020-E34 - "02:33 UT" - 2020 EM

K20E00M 2020 EM (H=19.9 ~355m) was picked up at 1350 UT on 5 March by ATLAS Mauna Loa, observing it at March 5.58-60p4. This detection was confirmed by SATINO-1 (March 6.10-12p2), LCO Cerro Tololo A (March 6.37p3), Sandlot Obs. (March 6.43p3), Spacewatch via Kitt Peak Natl. Obs. (KPNO) (March 6.53p3), Great Shefford Obs. (March 7.04-05p3 & 9.00-01p2), Astronomical Research Obs. Westfield (March 7.31-32p4), Visnjan Obs. (March 7.98-99p6), GiaGa Obs. (March 8.01-06p3), and Schiaparelli Obs. (March 8.12-13p3).

Observers on 9 March '20

Nineteen observers appear in today's MPECs.

Code	Observer / observatory
`C97`	Al-Fulaij Obs., 1 in MPEC 2020-E35 -- 448818
`H21`	Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2020-E34 -- 2020 EM
`T08`	ATLAS Mauna Loa in Hawaii, 1 in MPEC 2020-E34 -- 2020 EM
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 48 in MPEC 2020-E35 -- 2020 DZ1, 2020 DY3, 2020 DY1, 2020 DX, 2020 DT3, 2020 DR2, 2020 DQ, 2020 DM4, 2020 DJ4, 2020 DH4, 2020 DG2, 2020 DE3, 2020 CW1, 2020 CN1, 2020 CA2, 2020 BX14, 2020 BU12, 2020 BU1, 2020 BN9, 2020 BJ11, 2020 BH2, 2020 BD14, 2020 BC9, 2020 BA6, 2020 AN3, 2019 YW3, 2019 YV3, 2019 YQ5, 2019 YP4, 2019 YO6, 2019 YN4, 2019 YM6, 2019 YL1, 2019 YG1, 2019 YC, 2019 XY2, 2019 XG3, 2019 XC1, 2019 XB2, 2019 WZ, 2019 WT4, 2019 WR6, 2019 WQ3, 2019 UJ2, 2019 UG7, 2019 UG5, 2019 UC9, 2019 TO
`W84!`	program code "!" (10) via DECam in Chile, 1 in MPEC 2020-E37 -- 2019 GF1
`E89`	Geyserland Obs. in New Zealand, 2 in MPEC 2020-E35 -- 163243, 5660
`203`	GiaGa Obs. in Italy, 1 in MPEC 2020-E34 -- 2020 EM
`J95`	Great Shefford Obs. in England, 2 in MPECs 2020-E34 & 2020-E35 -- 2020 EM, 2020 DR2
`695^`	Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2020-E34 -- 2020 EM
`C401`	program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-E35 -- 52768
`W85`	LCO Cerro Tololo A in Chile, 1 in MPEC 2020-E34 -- 2020 EM
`L52`	MASTER Tavrida, 1 in MPEC 2020-E35 -- 1866
`G96`	Mt. Lemmon Survey in Arizona, 1 in MPEC 2020-E37 -- 2019 GF1
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2020-E34 -- 2020 EM
`C95`	SATINO-1 in France, 2 in MPECs 2020-E34 & 2020-E35 -- 2020 EM, 2017 MX4
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2020-E34 -- 2020 EM
`587`	Sormano Obs. in Italy, 1 in MPEC 2020-E35 -- 52768
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-E36 -- 2012 SV20
`L01`	Visnjan Obs. in Croatia, 1 in MPEC 2020-E34 -- 2020 EM

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 9 March '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 DB5	NEODyS	1630	2033-2118	28	4.81e-07	-3.46	-3.81	0	NEODyS: "Based on 29 optical observations (of which 1 are rejected as outliers) from 2020-02-29.518 to 2020-03-07.504."

2020 DR2	JPL Sentry	1630	2074-2081	2	2.0313e-06	-2.54	-2.55	0	JPL: Computed at 06:33 today Pacific time based on 205 observations spanning 17.780 days (2020-Feb-20.19345 to 2020-Mar-08.973697). Diameter approximately 0.590 km. from weighted mean H=18.80.
2020 DR2	NEODyS	1630	2074-2081	2	5.95e-07	-3.09	-3.09	0	NEODyS: "Based on 212 optical observations (of which 2 are rejected as outliers) from 2020-02-20.194 to 2020-03-08.974."

2020 AN3	JPL Sentry	1630	2106-2106	1	7.610e-08	-5.01	-5.01	0	JPL: Computed at 06:31 today Pacific time based on 148 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.
2020 AN3	NEODyS	1630	2106	1	1.38e-07	-4.76	-4.76	0	NEODyS: "Based on 157 optical observations (of which 3 are rejected as outliers) from 2019-11-09.148 to 2020-03-02.102."

2010 LJ68	JPL Sentry	1630	2025-2106	17	1.48417e-08	-6.46	-6.60	0	JPL: Computed at 15:34 Oct. 3rd of 2018 Pacific time based on 23 observations spanning 6.5838 days (2010-Jun-11.740367 to 2010-Jun-18.32412). Diameter approximately 0.082 km. from weighted mean H=23.08.

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 9 March '20

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

1700	Grabbed MPEC 2020-E37 - 2019 GF1 - see above
1630	Noted that JPL Sentry has updated its 2010 LJ68 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 Noted that NEODyS has updated its 2020 DB5 risk assessment - see above Noted that JPL Sentry has updated its 2020 DR2 risk assessment - see above Noted that NEODyS has updated its 2020 DR2 risk assessment - see above Grabbed MPEC 2020-E35 - Daily Orbit Update - see above Grabbed MPEC 2020-E36 - 2012 SV20 - see above
0403	Grabbed MPEC 2020-E34 - 2020 EM - see above

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