Contents  on 16 April '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 16 April '20

The MPC's NEO Confirmation Page has 57 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 57 objects listed. Of these, 34 were "one nighters." So far The Tracking News has counted a total of 72 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 16 April '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-H04 - "23:52 UT" - 2020 GY2


<< DOU on 16 April '20 >>  MPEC 2020-H03 - "12:03 UT" - Daily Orbit Update


MPEC 2020-H02 - "11:30 UT" - 2020 GX2


MPEC 2020-H01 - "03:10 UT" - 2020 GV2

Observers  on 16 April '20

A total of 48 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 3 in MPEC 2020-H03 -- 2001 GS2, 373428, 137064
A50Andrushivka Obs. in Ukraine, 1 in MPEC 2020-H03 -- 137064
H21Astronomical Research Obs. Westfield in Illinois, 17 in MPECs 2020-H02, 2020-H03 & 2020-H04 -- 2020 GY2, 2020 GX2, 2020 GT1, 2020 GT, 2020 GR, 2020 FV5, 2020 FF6, 2020 BY12, 2020 BX6, 2020 BC9, 2019 QE6, 2018 VX, 2017 AV3, 518771, 412976, 360433, 285110
T08ATLAS Mauna Loa in Hawaii, 2 in MPEC 2020-H03 -- 539940, 137199
160Castelmartini Obs. in Italy, 8 in MPEC 2020-H03 -- 2020 DT3, 65690, 52768, 413989, 388838, 36284, 163243, 11405
703Catalina Sky Survey (CSS) in Arizona, 15 in MPEC 2020-H03 -- 2019 UT9, 2015 FP332, 2010 XD11, 90367, 89830, 86067, 511523, 500094, 463282, 333555, 252793, 231792, 228368, 1981, 1866
Z99Clixby Obs. in England, 5 in MPEC 2020-H03 -- 2020 GT2, 2020 GN2, 2020 GM2, 2019 XG1, 2010 XD11
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2020-H03 -- 52768
958Dax Obs. in France, 1 in MPEC 2020-H01 -- 2020 GV2
W84*program code "*" (19) via DECam in Chile, 3 in MPEC 2020-H03 -- 467460, 215588, 138175
E10*program code "*" (19) via Faulkes Telescope South in New South Wales, 1 in MPEC 2020-H03 -- 2003 UG22
W46Foxfire Village Obs., 3 in MPEC 2020-H03 -- 413989, 142555, 11066
203GiaGa Obs. in Italy, 1 in MPEC 2020-H01 -- 2020 GV2
Z30Glyn Marsh Obs., 1 in MPEC 2020-H03 -- 52768
K73Gravina Obs. in Italy, 2 in MPEC 2020-H03 -- 52768, 388838
J95Great Shefford Obs. in England, 3 in MPECs 2020-H01, 2020-H02 & 2020-H03 -- 2020 GX2, 2020 GV2, 2020 GN2
240Herrenberg Obs. in Germany, 1 in MPEC 2020-H03 -- 388838
H06+program code "+" (20) via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-H03 -- 7088
246KLENOT in the Czech Republic, 8 in MPECs 2020-H01 & 2020-H03 -- 2020 GV2, 2020 GT2, 2020 GS2, 2020 GS, 2020 GM2, 2020 GJ2, 2020 GD2, 2020 FA7
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-H03 -- 52768
Z43Landehen Obs., 4 in MPEC 2020-H03 -- 2020 GN2, 2020 GH2, 373428, 137064
K22Les Barres Obs. in France, 1 in MPEC 2020-H03 -- 52768
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2020-H03 -- 2020 GD2, 2020 FO2, 2020 FB6
G96Mt. Lemmon Survey (MLS) in Arizona, 40 in MPECs 2020-H02, 2020-H03 & 2020-H04 -- 2020 GY2, 2020 GX2, 2020 GV2, 2020 GS, 2020 FX6, 2020 FW3, 2020 FR6, 2020 FM6, 2020 FE6, 2020 BR16, 2019 XG3, 2019 GJ20, 2018 GX4, 2016 OY2, 2016 LF51, 2016 FT14, 2013 ON5, 2012 QQ10, 2012 EA2, 2009 KK8, 2007 TJ19, 2007 HX82, 2000 WO148, 1998 HN3, 68278, 66251, 539856, 513125, 483468, 468448, 330659, 243298, 210012, 190166, 175189, 154453, 141495, 136618, 7358, 1917
Z80Northolt Branch Obs. in England, 3 in MPEC 2020-H03 -- 2020 GT2, 2020 GH2, 2020 DM4
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2020-H03 -- 2020 FA7, 4581
F52Pan-STARRS 2 (PS2) in Hawaii, 9 in MPECs 2020-H01, 2020-H03 & 2020-H04 -- 2020 GY2, 2020 GV2, 2020 EM, 2014 UA192, 2006 PY17, 2001 GS2, 519354, 373428, 277142
K63Pascoli Obs. in Italy, 1 in MPEC 2020-H04 -- 2020 GY2
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2020-H03 -- 2020 DM4, 2019 XG1, 2015 TX143
V93Pin Oak Obs., 1 in MPEC 2020-H03 -- 52768
A48Povegliano Veronese Obs. in Italy, 1 in MPEC 2020-H03 -- 2020 GN2
D29Purple Mtn. Obs. Xuyi Station in China, 17 in MPEC 2020-H03 -- 2020 FM6, 2020 FA7, 1998 HN3, 86667, 68278, 66251, 482566, 186822, 18109, 175189, 152941, 141495, 136923, 115052, 7753, 4581, 1866
L40Saarbruecken Rastpfuhl Obs., 2 in MPEC 2020-H03 -- 2020 GD2, 52768
233San Vito Obs. in Italy, 1 in MPEC 2020-H03 -- 52768
H36Sandlot Obs. in Kansas, 2 in MPECs 2020-H02 & 2020-H04 -- 2020 GY2, 2020 GX2
C95SATINO-1 in France, 1 in MPEC 2020-H03 -- 2020 AV1
204Schiaparelli Obs. in Italy, 2 in MPECs 2020-H01 & 2020-H02 -- 2020 GX2, 2020 GV2
033Schwarzschild Obs. in Germany, 17 in MPECs 2020-H02, 2020-H03 & 2020-H04 -- 2020 GY2, 2020 GX2, 2020 GX1, 2020 GV2, 2020 GT2, 2020 GS2, 2020 GR2, 2020 GP1, 2020 GO2, 2020 GN2, 2020 GM2, 2020 GE2, 2020 FV6, 2020 FN1, 2020 FH6, 2018 VX, 2017 UZ44
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2020-H01 & 2020-H02 -- 2020 GX2, 2020 GV2
I52Steward Obs. Mt. Lemmon Station in Arizona, 14 in MPECs 2020-H02, 2020-H03 & 2020-H04 -- 2020 GY2, 2020 GX2, 2020 GV2, 2020 GT2, 2020 GS2, 2020 GM2, 2020 GK2, 2020 GE1, 2020 GD, 2020 FO5, 2020 FH6, 2019 TL4, 2018 VX, 2017 BE32
858Tebbutt Obs. in New Mexico, 1 in MPEC 2020-H02 -- 2020 GX2
A16Tentlingen Obs. in Switzerland, 3 in MPEC 2020-H03 -- 2020 FO2, 388945, 388838
W33Transit Dreams Obs., 7 in MPEC 2020-H03 -- 90075, 52768, 36284, 163243, 9400, 5626, 1627
L01Visnjan Obs. in Croatia, 3 in MPECs 2020-H01, 2020-H02 & 2020-H04 -- 2020 GY2, 2020 GX2, 2020 GV2
Z92West Park Obs. in England, 1 in MPEC 2020-H03 -- 52768
C51WISE in Earth polar orbit, 2 in MPEC 2020-H03 -- 506459, 35107
I15Wishing Star Obs. in Rhode Island, 2 in MPEC 2020-H03 -- 2020 GN2, 2020 FA7
I41Zwicky Transient Facility (ZTF) in southern California, 10 in MPEC 2020-H03 -- 2020 GT2, 2020 GD2, 2019 WB6, 2019 UT9, 2013 GY7, 89830, 52768, 494880, 483878, 333555
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 April '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 GV2JPL Sentry17002077-207711.169e-06-6.81-6.810JPL #3 for the day: Computed at 09:58 today Pacific time based on 35 observations spanning .87716 days (2020-Apr-15.416676 to 2020-Apr-16.29384). Diameter approximately 0.014 km. from weighted mean H=26.88.
NEODyS16302077-207821.46e-06-6.73-6.730NEODyS: "Based on 47 optical observations (of which 1 are rejected as outliers) from 2020-04-15.417 to 2020-04-16.295."

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 16 April '20

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

2358Grabbed MPEC 2020-H04 - 2020 GY2 - see above
1700Noted that JPL Sentry has updated its 2020 GV2 risk assessment - see above
1630Noted that JPL Sentry has updated its 2020 GV2 risk assessment - see above
Noted that NEODyS has posted 2020 GV2 as an impact risk - see above
Grabbed MPEC 2020-H02 - 2020 GX2 - see above
Grabbed MPEC 2020-H03 - Daily Orbit Update - see above
0430Noted that JPL Sentry has posted 2020 GV2 as an impact risk - see above
Grabbed MPEC 2020-H01 - 2020 GV2 - see above