Contents  on 16 May '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 May '20

The MPC's NEO Confirmation Page has 99 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 99 objects listed. Of these, 59 were "one nighters." So far The Tracking News has counted a total of 111 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 May '20

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2020-K07 - "22:10 UT" - 2020 JY1


MPEC 2020-K06 - "22:01 UT" - 2020 JX1


MPEC 2020-K05 - "20:17 UT" - 2020 JV1


MPEC 2020-K04 - "15:00 UT" - 2018 XA5


MPEC 2020-K03 - "13:46 UT" - 2011 JA


<< DOU on 16 May '20 >>  MPEC 2020-K02 - "12:10 UT" - Daily Orbit Update


MPEC 2020-K01 - "01:12 UT" - 2020 JU1

Observers  on 16 May '20

A total of 52 observers appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2020-K02 -- 40267
U71AHS Obs., 1 in MPEC 2020-K02 -- 40267
M43Al Sadeem Obs. in Abu Dhabi, 1 in MPEC 2020-K02 -- 52768
E23Arcadia Obs. in New South Wales, 1 in MPEC 2020-K07 -- 2020 JY1
H21Astronomical Research Obs. Westfield in Illinois, 13 in MPEC 2020-K02 -- 2020 FK5, 2020 FA7, 2020 DQ, 2019 WB6, 2017 FE90, 2010 GF25, 494880, 468448, 378526, 276049, 153315, 115052, 2202
T05ATLAS Haleakala in Hawaii, 7 in MPEC 2020-K02 -- 2015 FP332, 68350, 524530, 436030, 331471, 184990, 137199
T08ATLAS Mauna Loa in Hawaii, 28 in MPECs 2020-K02 & 2020-K07 -- 2020 JY1, 2020 HT2, 2020 HG9, 2018 GX4, 2016 AX147, 2013 XA22, 2002 VR85, 85628, 68278, 66407, 66251, 498066, 494706, 396730, 374188, 218863, 190166, 186822, 175189, 159929, 142781, 142555, 141053, 136923, 136874, 11066, 6050, 1917
160Castelmartini Obs. in Italy, 4 in MPEC 2020-K02 -- 52768, 40267, 163373, 162004
703Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2020-K02 -- 2015 FP332, 137199
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 2 in MPEC 2020-K02 -- 2020 JJ1, 2020 HH5
Z99Clixby Obs. in England, 2 in MPECs 2020-K02 & 2020-K07 -- 2020 JY1, 2020 JT1
K87Dettelbach Vineyard Obs. in Germany, 2 in MPEC 2020-K02 -- 2020 JY, 2020 JT1
J95Great Shefford Obs. in England, 4 in MPECs 2020-K01 & 2020-K02 -- 2020 JU1, 2020 JK1, 2020 JF1, 2020 HS6
A17Guidestar Obs. in Germany, 3 in MPECs 2020-K02 & 2020-K07 -- 2020 JY1, 2020 JY, 2020 JP
J37Huelva Obs. in Spain, 1 in MPEC 2020-K02 -- 52768
U68JPL SynTrack Robotic Telescope, 1 in MPEC 2020-K02 -- 85184
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-K02 -- 85184
Z43Landehen Obs., 4 in MPEC 2020-K02 -- 2000 KA, 85184, 138847, 106589
938Linhaceira Obs. in Portugal, 1 in MPEC 2020-K02 -- 52768
O85LiShan Obs., 2 in MPEC 2020-K02 -- 40267, 163373
568^R. Wainscoat on Mauna Kea in Hawaii, 2 in MPECs 2020-K05 & 2020-K06 -- 2020 JX1, 2020 JV1
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2020-K02 -- 52768
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2020-K02 & 2020-K03 -- 2020 HW9, 2020 HR9, 2020 FW3, 2020 FA3, 2017 MW7, 2011 JA, 2010 GW62, 85184
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-K07 -- 2020 JY1
F51Pan-STARRS 1 (PS1) in Hawaii, 28 in MPECs 2020-K02, 2020-K03, 2020-K05 & 2020-K06 -- 2020 JX1, 2020 JV1, 2020 JR1, 2020 JM, 2020 HX7, 2020 HQ4, 2020 HM7, 2020 HH6, 2020 GN3, 2019 YW3, 2017 FQ90, 2014 JO25, 2011 JA, 2010 EJ43, 2007 OY, 2003 MS2, 2000 WM107, 2000 CR101, 515446, 499582, 433992, 335758, 275976, 231792, 141053, 137911, 11284, 4954
F52Pan-STARRS 2 (PS2) in Hawaii, 5 in MPECs 2020-K01, 2020-K02, 2020-K03 & 2020-K07 -- 2020 JY1, 2020 JU1, 2011 JA, 2003 SJ154, 141495
K63Pascoli Obs. in Italy, 1 in MPEC 2020-K07 -- 2020 JY1
K19PASTIS Obs. in France, 1 in MPEC 2020-K02 -- 40267
K81PMPHR Obs., 1 in MPEC 2020-K02 -- 52768
654Pomona College Table Mtn. Obs. in southern California, 1 in MPEC 2020-K05 -- 2020 JV1
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2020-K02 -- 52768
L18QOS Obs., 2 in MPEC 2020-K02 -- 40267, 162004
233San Vito Obs. in Italy, 1 in MPEC 2020-K02 -- 52768
C95SATINO-1 in France, 1 in MPEC 2020-K02 -- 2329
033Schwarzschild Obs. in Germany, 4 in MPECs 2020-K01, 2020-K02, 2020-K05 & 2020-K07 -- 2020 JY1, 2020 JV1, 2020 JU1, 2020 JR1
L03SGT Obs., 1 in MPEC 2020-K02 -- 52768
W88(program code "(" (17) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-K02 -- 2020 GF3
Q21Southern Utsunomiya in Japan, 1 in MPEC 2020-K02 -- 52768
L39Spica Obs., 1 in MPEC 2020-K02 -- 52768
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-K07 -- 2020 JY1
I52Steward Obs. Mt. Lemmon Station in Arizona, 30 in MPECs 2020-K01, 2020-K02 & 2020-K05 -- 2020 JY, 2020 JX, 2020 JV1, 2020 JU1, 2020 JT, 2020 JR1, 2020 JR, 2020 JQ1, 2020 JP1, 2020 JO1, 2020 JM1, 2020 JL1, 2020 JK1, 2020 JG1, 2020 JE1, 2020 JC1, 2020 JB1, 2020 JB, 2020 JA1, 2020 HW9, 2020 HV2, 2020 HS6, 2020 HH2, 2020 HG9, 2020 HD7, 2020 HC10, 2020 FA7, 2017 BE32, 2016 FY14, 86667
A16Tentlingen Obs. in Switzerland, 3 in MPEC 2020-K02 -- 86667, 85628, 162004
C35Terrassa Obs. in Spain, 1 in MPEC 2020-K02 -- 52768
W33Transit Dreams Obs., 14 in MPEC 2020-K02 -- 2020 JY, 2020 JP, 2014 JO25, 99935, 86667, 40267, 35107, 333555, 318050, 190166, 175189, 159929, 142555, 137064
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-K04 -- 2018 XA5
H78Univ. of Narino Obs. in Colombia, 1 in MPEC 2020-K02 -- 163373
K41Vegaquattro Obs. in Italy, 1 in MPEC 2020-K02 -- 52768
G23Vulpecula Obs., 1 in MPEC 2020-K02 -- 52768
V19Whiskey Creek Obs., 4 in MPEC 2020-K02 -- 68350, 436030, 433992, 136874
718Wiggins Obs. in Utah, 1 in MPEC 2020-K02 -- 52768
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2020-K02 -- 162004
I41Zwicky Transient Facility in southern California, 1 in MPEC 2020-K02 -- 162004
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 May '20

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2359 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 JX1JPL Sentry23592031-2117291.20616603e-05-4.75-5.200JPL: Computed at 16:06 today Pacific time based on 11 observations spanning 2.1472 days (2020-May-14.300108 to 2020-May-16.447304). Diameter approximately 0.052 km. from weighted mean H=24.07.
2020 JS1NEODyS17002022-2105248.88e-07-6.36-6.460NEODyS: "Based on 8 optical observations (of which 0 are rejected as outliers) from 2020-05-13.357 to 2020-05-14.992."
2020 HQ4JPL Sentry17002059-2120609.337663e-05-5.26-5.940JPL: Computed at 07:14 today Pacific time based on 108 observations spanning 23.327 days (2020-Apr-22.14953 to 2020-May-15.476544). Diameter approximately 0.014 km. from weighted mean H=26.91.
NEODyS17002051-21181297.76e-05-5.40-6.090NEODyS: "Based on 111 optical observations (of which 1 are rejected as outliers) from 2020-04-22.150 to 2020-05-15.477."

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 May '20

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

2359Noted that JPL Sentry has posted 2020 JX1 as an impact risk - see above
2304Grabbed MPEC 2020-K06 - 2020 JX1 - see above
Grabbed MPEC 2020-K07 - 2020 JY1 - see above
2200Grabbed MPEC 2020-K05 - 2020 JV1 - see above
1700Noted that JPL Sentry has updated its 2020 HQ4 risk assessment - see above
Noted that NEODyS has updated its 2020 HQ4 risk assessment - see above
Noted that NEODyS has posted 2020 JS1 as an impact risk - see above
Grabbed MPEC 2020-K02 - Daily Orbit Update - see above
Grabbed MPEC 2020-K03 - 2011 JA - see above
Grabbed MPEC 2020-K04 - 2018 XA5 - see above
0430Grabbed MPEC 2020-K01 - 2020 JU1 - see above