Contents  on 12 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 12 April '20

The MPC's NEO Confirmation Page has 29 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 29 objects listed. Of these, sixteen were "one nighters." So far The Tracking News has counted a total of 33 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 April '20

Minor Planet Electronic Circulars

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


MPEC 2020-G94 - "23:24 UT" - Comet C/2020 F8 (SWAN)


MPEC 2020-G93 - "22:16 UT" - 2020 GK2


<< DOU on 12 April '20 >>  MPEC 2020-G92 - "12:01 UT" - Daily Orbit Update


<< OOC on 12 April '20 -- MPEC 2020-G91 - "05:46 UT" - Observations and Orbits of Comets and A/ Objects


MPEC 2020-G90 - "03:14 UT" - 2020 GJ2

Observers  on 12 April '20

A total of 108 observers appear in today's MPECs.

CodeObserver / observatory
L2729PREMOTE Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1
M43Al Sadeem Obs. in Abu Dhabi, 1 in MPEC 2020-G91 -- C/2019 Y4
B37Ametlla del Valles Obs. in Spain, 1 in MPEC 2020-G90 -- 2020 GJ2
A50Andrushivka Obs. in Ukraine, 1 in MPEC 2020-G92 -- 2020 GJ2
R57Aorangi Iti Obs. in New Zealand, 3 in MPEC 2020-G91 -- C/2019 U6, C/2019 K1, C/2018 F4
H21Astronomical Research Obs. Westfield in Illinois, 5 in MPEC 2020-G92 -- 2020 GM1, 2020 GJ1, 2020 FX4, 2020 FO2, 7088
T05ATLAS Haleakala in Hawaii, 8 in MPEC 2020-G91 -- C/2019 F1, 2019 C1, C/2018 U1, 2017 U7, 249P, 124P, 88P, 87P
T08ATLAS Mauna Loa in Hawaii, 30 in MPECs 2020-G91 & 2020-G92 -- 2020 GD2, P/2019 Y2, 2019 O3, C/2019 K7, 2017 U7, C/2017 T2, C/2017 K2, 2010 XD11, C/2010 U3, 89830, 86067, 65690, 539940, 363599, 35107, 333555, 252793, 141525, 137199, 9400, 1866, 278P, 249P, 246P, 124P, 117P, 114P, 88P, 87P, 78P
I47Auger Obs. in Argentina, 2 in MPECs 2020-G91 & 2020-G94 -- C/2020 F8, C/2020 F3
069Baldone Obs. in Latvia, 1 in MPEC 2020-G91 -- C/2019 Y4
C77Bernezzo Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
L54Berthelot Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
C86Blanes Obs. in Spain, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
Q68Blue Mountains Obs. in New South Wales, 4 in MPEC 2020-G91 -- C/2020 F3, 2019 C1, C/2017 M4, C/2016 M1
G20Brignoles Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
B96Brixiis Obs. in Belgium, 7 in MPEC 2020-G91 -- C/2020 A2, C/2019 Y4, C/2019 N1, C/2017 T2, 246P, 88P, 87P
Z36Cancelada Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
Z46Cardiff Obs., 3 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1, C/2017 T2
B20Carmelita Obs. in Spain, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
I72Carpe Noctem Obs. in Spain, 1 in MPEC 2020-G91 -- C/2019 Y4
160Castelmartini Obs. in Italy, 24 in MPECs 2020-G91 & 2020-G92 -- P/2019 Y2, 2019 XG1, C/2018 U1, 2011 FZ2, 85628, 68350, 494880, 448818, 436324, 413989, 388945, 388838, 373428, 35107, 318050, 276274, 137170, 137064, 136618, 115052, 246P, 155P, 124P, 114P
703Catalina Sky Survey (CSS) in Arizona, 38 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 FO2, 2020 FA7, C/2019 Y4, 2019 XG1, 2017 FE90, 2013 GY7, 2001 GS2, 68350, 68278, 54686, 52768, 494880, 477524, 425450, 40267, 388945, 388838, 35107, 34613, 276732, 276274, 274138, 248926, 190166, 18172, 154993, 136618, 115052, 106589, 8566, 7088, 6047, 5626, 4954, 4581, 246P, 10P
K51Celado Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
A77Chante-Perdrix Obs. in France, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1
970Chelmsford Obs. in England, 1 in MPEC 2020-G91 -- C/2019 Y4
Z99Clixby Obs. in England, 4 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GH2, C/2019 Y4, 117P
178Collonges Obs., 1 in MPEC 2020-G91 -- 246P
850Cordell-Lorenz Obs. in Tennessee, 2 in MPEC 2020-G91 -- C/2020 F2, 114P
Z39Costa Teguise Obs. in the Canary Islands, 1 in MPEC 2020-G91 -- C/2019 Y4
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2020-G92 -- 333555
I39Cruz del Sur Obs. in Argentina, 1 in MPEC 2020-G94 -- C/2020 F8
P66Deokheung Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
K87Dettelbach Vineyard Obs. in Germany, 12 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GF2, 2020 GD2, 2020 GA2, 2020 FV6, 2020 FO2, 2020 FM6, 2020 FA7, 2020 FA3, C/2019 Y4, C/2017 K2, 246P
K77EHB01 Obs., 1 in MPEC 2020-G91 -- 210P
I48El Catalejo Obs. in Argentina, 1 in MPEC 2020-G94 -- C/2020 F8
Z40El Manzanillo Obs., 1 in MPEC 2020-G91 -- C/2019 N1
E89Geyserland Obs. in New Zealand, 9 in MPECs 2020-G91 & 2020-G92 -- C/2020 F3, C/2019 U6, C/2019 F1, 54401, 144411, 142555, 115052, 5660, 249P
203GiaGa Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
E94Gisborne Obs. in New Zealand, 3 in MPECs 2020-G91, 2020-G92 & 2020-G94 -- 2020 GF2, C/2020 F8, C/2020 F3
Z30Glyn Marsh Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
K73Gravina Obs. in Italy, 3 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 65690, 52768
J95Great Shefford Obs. in England, 5 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GH2, 2020 GF2, 2020 GA2, C/2019 Y4
A17Guidestar Obs. in Germany, 1 in MPEC 2020-G90 -- 2020 GJ2
Q56Heaven's Mirror Obs., 1 in MPEC 2020-G94 -- C/2020 F8
P87Hirao Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
196Homburg-Erbach Obs. in Germany, 1 in MPEC 2020-G91 -- 124P
C43Hoyerswerda Obs. in Germany, 2 in MPECs 2020-G90 & 2020-G91 -- 2020 GJ2, C/2017 T2
K78Iota Scorpii Obs., 1 in MPEC 2020-G92 -- 2020 GD2
H06iTelescope Obs. Mayhill in New Mexico, 2 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 52768
H06>program code ">" (39) via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2020-G91 -- C/2019 Y4
Q62iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
Q620Ernesto Guido in Italy via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
Q622Marian Urbanik in Slovakia via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
Q62{Nirmal Paul in India via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
246KLENOT in the Czech Republic, 9 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GG2, 2020 GF2, 2020 GD2, 2020 GA2, 2020 FX5, 2020 FV6, 2020 FO2, 2020 FM6
L12Koksijde Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-G92 -- 52768
Q63LCO Siding Spring A in New South Wales, 1 in MPEC 2020-G94 -- C/2020 F8
130Lumezzane Obs. in Italy, 11 in MPEC 2020-G92 -- 2020 FO2, 2020 FA7, 2010 XD11, 90367, 52768, 373428, 26760, 252793, 228368, 18172, 115052
K30Luscherz Obs. in Switzerland, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2001 GS2
C10Maisoncelles Obs. in France, 1 in MPEC 2020-G91 -- 10P
152Moletai Obs. in Lithuania, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
213Montcabre Obs. in Spain, 3 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2, C/2017 K2
G96Mt. Lemmon Survey (MLS) in Arizona, 17 in MPEC 2020-G92 -- 2020 FX4, 2019 NN36, 2011 EP40, 2010 XD11, 2009 AH16, 96189, 90367, 511523, 483878, 482244, 409836, 169352, 164207, 138846, 108906, 4450, 3103
K74Muensterschwarzach Obs. in Germany, 3 in MPECs 2020-G91 & 2020-G92 -- 2020 GF2, 2020 GA2, C/2019 Y4
C82Nastro Verde Obs. in Italy, 1 in MPEC 2020-G92 -- 52768
C47Nonndorf Obs. in Austria, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GF2
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-G91 -- C/2019 Y4
G34Oberfrauendorf Obs. in Germany, 4 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GF2, 2020 GD2, C/2019 Y4
C23Olmen Obs. in Belgium, 9 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2, 249P, 246P, 124P, 87P, 78P, 31P, 10P
F51Pan-STARRS 1 (PS1) in Hawaii, 11 in MPECs 2020-G90, 2020-G91, 2020-G92 & 2020-G93 -- 2020 GK2, 2020 GJ2, P/2019 X1, 2019 WB6, 2019 SN10, 2008 FG, 402267, 391033, 274138, 252793, 115052
F52Pan-STARRS 2 (PS2) in Hawaii, 8 in MPECs 2020-G91, 2020-G92 & 2020-G93 -- 2020 GK2, 2020 AZ2, 2017 GK4, 2017 FE90, 189700, 183548, 2329, 246P
K63Pascoli Obs. in Italy, 1 in MPEC 2020-G90 -- 2020 GJ2
B49Paus Obs. in Spain, 1 in MPEC 2020-G90 -- 2020 GJ2
323Perth Obs. in Western Australia, 3 in MPECs 2020-G91 & 2020-G94 -- C/2020 F8, C/2020 F3, C/2019 U6
A53Peschiera del Garda Obs. in Italy, 4 in MPEC 2020-G92 -- 2020 GF2, 2020 GD2, 2020 GA2, 2020 FA7
H45Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2020-G91 -- C/2019 Y4
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2020-G91 -- C/2019 Y4
D29Purple Mtn. Obs. Xuyi Station in China, 10 in MPECs 2020-G91 & 2020-G92 -- C/2019 N1, 2001 GS2, 90075, 373428, 250620, 18172, 137064, 7088, 5626, 1866
L18QOS Obs., 4 in MPEC 2020-G92 -- 2020 GF2, 2020 GA2, 52768, 413989
L04ROASTERR-1 in Romania, 5 in MPECs 2020-G90, 2020-G91 & 2020-G92 -- 2020 GJ2, 2020 GA2, C/2019 Y4, 2010 XD11, 373428
247roving observer, 1 in MPEC 2020-G94 -- C/2020 F8
L40Saarbruecken Rastpfuhl Obs., 5 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 2001 GS2, 539940, 52768, 137064
X03SADR Obs., 4 in MPEC 2020-G91 -- C/2020 F3, C/2019 T4, C/2017 M4, 257P
233San Vito Obs. in Italy, 3 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 52768, 124P
B70Sant Celoni Obs. in Spain, 1 in MPEC 2020-G91 -- C/2019 Y4
B56Sant Pere Obs. in Spain, 1 in MPEC 2020-G91 -- C/2019 Y4
C95SATINO-1 in France, 2 in MPECs 2020-G91 & 2020-G92 -- 2019 YG7, 228P
204Schiaparelli Obs. in Italy, 14 in MPECs 2020-G90 & 2020-G91 -- 2020 GJ2, C/2020 F2, C/2020 B3, C/2020 A2, C/2019 Y4, C/2019 N1, C/2017 T2, C/2017 K2, 249P, 203P, 112P, 101P, 88P, 78P
033Schwarzschild Obs. in Germany, 23 in MPECs 2020-G90, 2020-G92 & 2020-G93 -- 2020 GY1, 2020 GX1, 2020 GU1, 2020 GP1, 2020 GM1, 2020 GK2, 2020 GK1, 2020 GJ2, 2020 GF2, 2020 GE2, 2020 GB, 2020 GA2, 2020 GA1, 2020 FV6, 2020 FM6, 2020 FD3, 2017 UZ44, 2017 FE90, 2016 EE157, 2016 EE156, 2015 FT118, 2013 AO27, 2008 FG
K14Sencelles Obs. in Spain, 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-G91 -- C/2019 Y4
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2020-G91 -- C/2017 K2
W883B. Lutkenhoner in Germany via Slooh.com Chile Obs. in Chile, 4 in MPEC 2020-G91 -- C/2020 F5, C/2020 F3, C/2019 Q4, 58P
L39Spica Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
W34Squirrel Valley Obs. in North Carolina, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GB
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2020-G90 & 2020-G91 -- 2020 GJ2, 2020 F7
K21St. Saturnin les Avignon Obs. in France, 1 in MPEC 2020-G91 -- C/2019 Y4
C36Starry Wanderer Obs. in Belarus, 3 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1, C/2017 T2
I52Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2020-G90 & 2020-G92 -- 2020 GJ2, 2020 GA2
Q23Sukagawa Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
Q38Swan Hill Obs., 1 in MPEC 2020-G94 -- C/2020 F8
I81Tarbatness Obs. in Scotland, 6 in MPEC 2020-G91 -- C/2019 Y4, C/2019 Y1, C/2019 N1, C/2017 T2, C/2017 K2, 124P
X02Telescope Live in Chile, 2 in MPECs 2020-G91 & 2020-G94 -- C/2020 F8, C/2020 F5
A16Tentlingen Obs. in Switzerland, 3 in MPECs 2020-G91 & 2020-G92 -- C/2010 U3, 90367, 4581
C35Terrassa Obs. in Spain, 5 in MPEC 2020-G91 -- C/2019 Y4, C/2019 N1, C/2018 N2, C/2017 T2, 124P
W33Transit Dreams Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
L01Visnjan Obs. in Croatia, 3 in MPECs 2020-G90, 2020-G92 & 2020-G93 -- 2020 GK2, 2020 GJ2, 2020 GH2
G23Vulpecula Obs., 2 in MPEC 2020-G91 -- C/2019 Y4, C/2017 T2
Z92West Park Obs. in England, 3 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, C/2017 T2, 52768
I15Wishing Star Obs. in Rhode Island, 6 in MPECs 2020-G91 & 2020-G92 -- C/2019 Y4, 2019 XG1, 65690, 52768, 115052, 9400
Q78Woogaroo Obs., 1 in MPEC 2020-G92 -- 315098
Z57Zuben Obs., 1 in MPEC 2020-G91 -- C/2019 Y4
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 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 GH2NEODyS1630204718.3e-09-8.63-8.630NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2020-04-11.265 to 2020-04-11.947."
2020 GK1JPL Sentry16302105-210511.012e-10-10.10-10.10JPL: Computed at 06:48 today Pacific time based on 40 observations spanning 8.5190 days (2020-Apr-03.43665 to 2020-Apr-11.95566). Diameter approximately 0.032 km. from weighted mean H=25.14.
2020 FV6JPL Sentry16302092-209214.693e-09-7.32-7.320JPL: Computed at 06:28 today Pacific time based on 54 observations spanning 13.511 days (2020-Mar-29.51039 to 2020-Apr-12.02164). Diameter approximately 0.088 km. from weighted mean H=22.94.
NEODyS1630209211.76e-10-8.75-8.750NEODyS: "Based on 54 optical observations (of which 0 are rejected as outliers) from 2020-03-29.511 to 2020-04-12.022."

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 April '20

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

2332Grabbed MPEC 2020-G93 - 2020 GK2 - see above
Grabbed MPEC 2020-G94 - Comet C/2020 F8 (SWAN) - see above
1630Noted that JPL Sentry has updated its 2020 FV6 risk assessment - see above
Noted that NEODyS has updated its 2020 FV6 risk assessment - see above
Noted that NEODyS has posted 2020 GH2 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 GK1 risk assessment - see above
Grabbed MPEC 2020-G91 - Observations and Orbits of Comets and A/ Objects - see above
Grabbed MPEC 2020-G92 - Daily Orbit Update - see above
0420Grabbed MPEC 2020-G90 - 2020 GJ2 - see above