Contents  on 1 March '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 1 March '20

The MPC's NEO Confirmation Page has 21 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 21 objects listed. Of these, thirteen were "one nighters." So far The Tracking News has counted a total of 26 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 1 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-E04 - "18:50 UT" - 2020 DV4


MPEC 2020-E03 - "12:51 UT" - 2020 DU4


MPEC 2020-E02 - "12:45 UT" - 2020 DT4


<< DOU on 1 March '20 >>  MPEC 2020-E01 - "12:01 UT" - Daily Orbit Update

Observers  on 1 March '20

A total of 27 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 26 in MPECs 2020-E01, 2020-E02 & 2020-E04 -- 2020 DV4, 2020 DT4, 2020 DR2, 2020 CV2, 2020 CJ1, 2020 BN15, 2020 BN14, 2020 BB1, 2019 SV7, 2017 FP2, 2017 FE90, 2016 HD19, 2008 FG, 2006 SS19, 2003 SJ154, 2003 MS2, 515010, 338049, 335746, 331509, 280244, 277473, 276111, 162063, 7753, 4596
V00Bok Telescope in Arizona, 7 in MPEC 2020-E01 -- 2020 DW3, 2003 SQ15, 90403, 483563, 462041, 36183, 1620
X74Campo dos Amarais Obs., 1 in MPEC 2020-E01 -- 163243
160Castelmartini Obs. in Italy, 9 in MPEC 2020-E01 -- 2020 DX, 2020 DQ3, 90075, 512245, 374188, 34613, 18172, 159454, 138013
703Catalina Sky Survey (CSS) in Arizona, 14 in MPEC 2020-E01 -- 2019 XG1, 2009 AH16, 2004 MD, 52768, 525364, 483878, 459386, 448818, 248926, 162080, 154993, 136993, 111253, 1981
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2020-E03 -- 2020 DU4
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2020-E04 -- 2020 DV4
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2020-E03 -- 2020 DU4
J95Great Shefford Obs. in England, 2 in MPECs 2020-E01 & 2020-E04 -- 2020 DZ3, 2020 DV4
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-E01 -- 2020 CX2
186Kitab Obs., 1 in MPEC 2020-E01 -- 2020 BZ12
Z43Landehen Obs., 1 in MPEC 2020-E01 -- 40267
130Lumezzane Obs. in Italy, 6 in MPEC 2020-E01 -- 2020 DX, 2015 OL35, 2006 DY, 40267, 162080, 4450
474Mt. John Obs. in New Zealand, 19 in MPEC 2020-E01 -- 2020 DZ1, 2020 DY3, 2020 DV1, 2020 DU3, 2020 DR3, 2020 DP3, 2020 DM3, 2020 CL1, 2020 BX10, 2020 BT12, 2020 BO5, 2020 BO11, 2020 BN10, 2020 BM14, 2020 BL8, 2019 YL1, 2019 UC4, 2019 SN10, 2019 SB1
G96Mt. Lemmon Survey (MLS) in Arizona, 17 in MPECs 2020-E01, 2020-E02, 2020-E03 & 2020-E04 -- 2020 DV4, 2020 DU4, 2020 DT4, 2020 BZ14, 2020 BV13, 2020 BS11, 2019 XG1, 2017 MX4, 86326, 52768, 525364, 463282, 363067, 331876, 154993, 153267, 136795
J69North Obs. in England, 1 in MPEC 2020-E01 -- 2020 DZ3
K63Pascoli Obs. in Italy, 1 in MPEC 2020-E01 -- 5693
L18QOS Obs., 2 in MPEC 2020-E01 -- 2020 DX, 2017 BM123
C95SATINO-1 in France, 1 in MPEC 2020-E01 -- 2016 BA39
033Schwarzschild Obs. in Germany, 12 in MPECs 2020-E01, 2020-E02, 2020-E03 & 2020-E04 -- 2020 DV4, 2020 DU4, 2020 DT4, 2019 BO1, 2017 BP31, 2017 BE92, 2017 BB94, 2016 WE1, 2016 FG15, 2015 FC35, 2011 GD60, 2009 CE
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2020-E01 -- 35107
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2020-E01 -- 2020 CE
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-E04 -- 2020 DV4
I52Steward Obs. Mt. Lemmon Station in Arizona, 4 in MPECs 2020-E01 & 2020-E02 -- 2020 DT4, 2020 DA, 2019 XZ2, 2019 WR2
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 1 in MPEC 2020-E01 -- 2020 DP3
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-E01 -- 2020 BQ
I41Zwicky Transient Facility (ZTF) in southern California, 14 in MPEC 2020-E01 -- 2020 DA2, 2020 BH11, 2019 XG1, 2017 MX4, 2017 BM123, 2016 GZ215, 90075, 459386, 248926, 232368, 18172, 136582, 10145, 5646
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 1 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 DP4NEODyS2301207919.36e-10-9.31-9.310NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2020-02-27.379 to 2020-02-29.427."
2020 DM3NEODyS2301210913.51e-09-9.12-9.120NEODyS: "Based on 58 optical observations (of which 1 are rejected as outliers) from 2020-02-26.150 to 2020-02-29.447."
JPL Sentry17002109-210911.014e-07-7.65-7.650JPL: Computed at 05:59 today Pacific time based on 58 observations spanning 3.2963 days (2020-Feb-26.14966 to 2020-Feb-29.445913). Diameter approximately 0.020 km. from weighted mean H=26.13.
2020 DR2NEODyS23012074-211432.03e-05-1.53-1.771NEODyS: "Based on 170 optical observations (of which 2 are rejected as outliers) from 2020-02-20.194 to 2020-02-28.851."

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 1 March '20

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

2301Noted that NEODyS has updated its 2020 DM3 risk assessment - see above
Noted that NEODyS has posted 2020 DP4 as an impact risk - see above
Noted that NEODyS has updated its 2020 DR2 risk assessment - see above
1900Grabbed MPEC 2020-E04 - 2020 DV4 - see above
1700Noted that JPL Sentry has updated its 2020 DM3 risk assessment - see above
Grabbed MPEC 2020-E01 - Daily Orbit Update - see above
Grabbed MPEC 2020-E02 - 2020 DT4 - see above
Grabbed MPEC 2020-E03 - 2020 DU4 - see above