Contents  on 27 July '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 27 July '20

The MPC's NEO Confirmation Page has 37 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 37 objects listed. Of these, sixteen were "one nighters." So far The Tracking News has counted a total of 52 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 27 July '20

Minor Planet Electronic Circulars

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


MPEC 2020-O136 - "22:05 UT" - 2014 QB527


MPEC 2020-O135 - "22:02 UT" - 2012 VR128


MPEC 2020-O134 - "21:00 UT" - 2010 VD253


<< DOU on 27 July '20 >>  MPEC 2020-O133 - "12:24 UT" - Daily Orbit Update


MPEC 2020-O132 - "11:29 UT" - 2020 OB5


MPEC 2020-O131 - "11:21 UT" - 2020 OA5


MPEC 2020-O130 - "11:14 UT" - 2020 OZ4


MPEC 2020-O129 - "05:00 UT" - 2020 OY4


MPEC 2020-O128 - "04:58 UT" - 2020 OX4


MPEC 2020-O127 - "02:20 UT" - 2020 OW4


MPEC 2020-O126 - "02:18 UT" - 2020 OV4


MPEC 2020-O125 - "01:29 UT" - 2020 OU4


MPEC 2020-O124 - "01:27 UT" - 2020 OT4

Observers  on 27 July '20

A total of 36 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 5 in MPECs 2020-O125, 2020-O127, 2020-O128, 2020-O131 & 2020-O132 -- 2020 OX4, 2020 OW4, 2020 OU4, 2020 OB5, 2020 OA5
X74Campo dos Amarais Obs., 1 in MPEC 2020-O133 -- 2018 KM2
160Castelmartini Obs. in Italy, 12 in MPEC 2020-O133 -- 2020 OD, 2020 MX3, 2016 PN, 2014 LW21, 2006 UD63, 2006 HB, 2004 XP14, 2003 BK47, 90147, 85275, 382503, 106589
703Catalina Sky Survey (CSS) in Arizona, 13 in MPEC 2020-O133 -- 2020 NA, 2016 NV38, 85804, 65690, 53430, 480936, 428086, 420302, 23187, 136900, 106589, 9162, 1685
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 4 in MPECs 2020-O129, 2020-O130 & 2020-O133 -- 2020 OZ4, 2020 OY4, 2019 NC7, 2004 RF84
V94Cherokee Ridge Obs., 2 in MPEC 2020-O133 -- 85275, 106589
958Dax Obs. in France, 1 in MPEC 2020-O125 -- 2020 OU4
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2020-O125 -- 2020 OU4
E94Gisborne Obs. in New Zealand, 1 in MPEC 2020-O133 -- 2020 NK1
U55Golden Ears Obs., 1 in MPEC 2020-O133 -- 382503
J95Great Shefford Obs. in England, 2 in MPECs 2020-O124 & 2020-O125 -- 2020 OU4, 2020 OT4
L63HOB Obs., 1 in MPEC 2020-O133 -- 7977
C401program code 1 via Kuban State Univ. Obs. in Russia, 1 in MPEC 2020-O133 -- 85275
K38M57 Obs. in Italy, 3 in MPEC 2020-O133 -- 2020 OD, 2020 BZ12, 2017 QM18
568^R. Wainscoat on Mauna Kea in Hawaii, 1 in MPEC 2020-O130 -- 2020 OZ4
474Mt. John Obs. in New Zealand, 9 in MPECs 2020-O126, 2020-O129, 2020-O131, 2020-O132 & 2020-O133 -- 2020 OY4, 2020 OV4, 2020 OO1, 2020 ON, 2020 OG3, 2020 OE1, 2020 OB5, 2020 OA5, 2020 NZ
G96Mt. Lemmon Survey (MLS) in Arizona, 23 in MPECs 2020-O126, 2020-O129, 2020-O131, 2020-O132 & 2020-O133 -- 2020 OY4, 2020 OV4, 2020 OT, 2020 OR, 2020 OP2, 2020 OB5, 2020 OA5, 2020 ML3, 2020 LZ1, 2020 LJ2, 2015 YP10, 2015 XW261, 2011 QG9, 54789, 468730, 435404, 380128, 256670, 230979, 200840, 162723, 152685, 7025
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2020-O135 -- 2012 VR128
F51Pan-STARRS 1 (PS1) in Hawaii, 8 in MPECs 2020-O124, 2020-O126, 2020-O127, 2020-O128, 2020-O130, 2020-O134, 2020-O135 & 2020-O136 -- 2020 OZ4, 2020 OX4, 2020 OW4, 2020 OV4, 2020 OT4, 2014 QB527, 2012 VR128, 2010 VD253
F52Pan-STARRS 2 (PS2) in Hawaii, 6 in MPECs 2020-O125, 2020-O126, 2020-O127, 2020-O134, 2020-O135 & 2020-O136 -- 2020 OW4, 2020 OV4, 2020 OU4, 2014 QB527, 2012 VR128, 2010 VD253
K63Pascoli Obs. in Italy, 3 in MPECs 2020-O124, 2020-O125 & 2020-O133 -- 2020 OU4, 2020 OT4, 2020 OS4
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPEC 2020-O133 -- 2020 NA, 2020 MX3, 2019 AN5, 2016 PN, 2014 LW21, 2006 UD63, 2006 HB
6581Dave Balam via Plaskett 1.8m Telescope in British Columbia, 2 in MPECs 2020-O125 & 2020-O133 -- 2020 OU4, 2020 OE4
104San Marcello Pistoiese Obs. in Italy, 7 in MPECs 2020-O124, 2020-O125 & 2020-O133 -- 2020 OU4, 2020 OT4, 2020 OR4, 2020 OO1, 2020 OE2, 2020 MX3, 2020 MX
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-O125 -- 2020 OU4
C95SATINO-1 in France, 1 in MPEC 2020-O133 -- 2016 PN
204Schiaparelli Obs. in Italy, 2 in MPECs 2020-O125 & 2020-O131 -- 2020 OU4, 2020 OA5
033Schwarzschild Obs. in Germany, 14 in MPECs 2020-O125, 2020-O130 & 2020-O133 -- 2020 OZ4, 2020 OZ2, 2020 OX4, 2020 OW4, 2020 OV4, 2020 OU4, 2020 OT4, 2020 OT1, 2020 OL1, 2020 OG2, 2020 OE4, 2020 OE2, 2020 OC1, 2020 NN
Y00SONEAR in Brazil, 3 in MPEC 2020-O133 -- 2016 PN, 2004 LU3, 6569
W34Squirrel Valley Obs. in North Carolina, 3 in MPEC 2020-O133 -- 2020 OE4, 2006 UD63, 2006 HB
I93St. Pardon de Conques Obs. in France, 6 in MPECs 2020-O124, 2020-O125, 2020-O128, 2020-O129, 2020-O131 & 2020-O133 -- 2020 OY4, 2020 OX4, 2020 OU4, 2020 OT4, 2020 OS4, 2020 OA5
I52Steward Obs. Mt. Lemmon Station in Arizona, 18 in MPECs 2020-O124, 2020-O125, 2020-O126, 2020-O128, 2020-O131, 2020-O132 & 2020-O133 -- 2020 OX4, 2020 OV4, 2020 OU4, 2020 OU2, 2020 OT4, 2020 OL1, 2020 OH, 2020 OG4, 2020 OG2, 2020 OE4, 2020 OE2, 2020 OE1, 2020 OC1, 2020 OB5, 2020 OA5, 2020 NG1, 2020 NE1, 2017 QX34
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-O133 -- 2016 CC32
L01Visnjan Obs. in Croatia, 9 in MPECs 2020-O124, 2020-O125, 2020-O126, 2020-O127, 2020-O128, 2020-O129, 2020-O131 & 2020-O133 -- 2020 OY4, 2020 OX4, 2020 OW4, 2020 OV4, 2020 OU4, 2020 OT4, 2020 OS4, 2020 OR4, 2020 OA5
N88Xingming Obs. #3, 2 in MPECs 2020-O124 & 2020-O125 -- 2020 OU4, 2020 OT4
I41Zwicky Transient Facility (ZTF) in southern California, 5 in MPEC 2020-O133 -- 2019 AN5, 27031, 154278, 108906, 4055
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 27 July '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 OY4JPL Sentry16002053-208232.46021e-07-9.01-9.040JPL: Computed at 23:07 July 26th Pacific time based on 25 observations spanning .71292 days (2020-Jul-26.34008 to 2020-Jul-27.052999). Diameter approximately 0.003 km. from weighted mean H=30.30.
2020 OX4JPL Sentry16002072-211073.5878206e-06-5.16-5.280JPL: Computed at 07:00 today Pacific time based on 23 observations spanning 1.8421 days (2020-Jul-25.552975 to 2020-Jul-27.39504). Diameter approximately 0.043 km. from weighted mean H=24.48.
NEODyS16002067-2116133.39e-06-5.20-5.390NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2020-07-25.554 to 2020-07-27.396."
2020 OR4JPL Sentry16002093-2117147.80371e-06-5.33-5.630JPL: Computed at 06:59 today Pacific time based on 37 observations spanning 6.5405 days (2020-Jul-20.399226 to 2020-Jul-26.939682). Diameter approximately 0.025 km. from weighted mean H=25.63.
NEODyS16002093-2117219.97e-06-5.24-5.550NEODyS: "Based on 37 optical observations (of which 0 are rejected as outliers) from 2020-07-20.400 to 2020-07-26.940."
2020 OO1JPL Sentry16002087-208713.643e-08-8.40-8.400JPL: Computed at 07:06 today Pacific time based on 107 observations spanning 6.4406 days (2020-Jul-20.405792 to 2020-Jul-26.846345). Diameter approximately 0.017 km. from weighted mean H=26.45.
NEODyS16002087-211878.37e-09-9.17-9.560NEODyS: "Based on 108 optical observations (of which 3 are rejected as outliers) from 2020-07-20.407 to 2020-07-26.847."
2020 NK1JPL Sentry16322091-210173.0720742e-05-1.41-1.681JPL #2 for the day: Computed at 09:16 today Pacific time based on 71 observations spanning 11.997 days (2020-Jul-13.567919 to 2020-Jul-25.564723). Diameter approximately 0.520 km. from weighted mean H=19.06.
NEODyS16002086-2101132.71e-05-1.46-1.771NEODyS: "Based on 78 optical observations (of which 2 are rejected as outliers) from 2020-07-13.569 to 2020-07-26.757."
2011 BH40JPL Sentry16002023-2116641.424403e-07-6.60-7.110JPL: Computed at 06:55 April 7th of 2017 Pacific time based on 12 observations spanning .06577 days (2011-Jan-30.42363 to 2011-Jan-30.4894). Diameter approximately 0.033 km. from weighted mean H=25.09.

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 27 July '20

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

2300Grabbed MPEC 2020-O135 - 2012 VR128 - see above
Grabbed MPEC 2020-O136 - 2014 QB527 - see above
2103Grabbed MPEC 2020-O134 - 2010 VD253 - see above
1632Noted that JPL Sentry has updated its 2020 NK1 risk assessment - see above
1600Noted that JPL Sentry has updated its 2011 BH40 risk assessment - see above
Noted that JPL Sentry has updated its 2020 NK1 risk assessment - see above
Noted that NEODyS has updated its 2020 NK1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 OO1 risk assessment - see above
Noted that NEODyS has updated its 2020 OO1 risk assessment - see above
Noted that JPL Sentry has updated its 2020 OR4 risk assessment - see above
Noted that NEODyS has posted 2020 OR4 as an impact risk - see above
Noted that JPL Sentry has posted 2020 OX4 as an impact risk - see above
Noted that NEODyS has posted 2020 OX4 as an impact risk - see above
Noted that JPL Sentry has posted 2020 OY4 as an impact risk - see above
Grabbed MPEC 2020-O130 - 2020 OZ4 - see above
Grabbed MPEC 2020-O131 - 2020 OA5 - see above
Grabbed MPEC 2020-O132 - 2020 OB5 - see above
Grabbed MPEC 2020-O133 - Daily Orbit Update - see above
0522Grabbed MPEC 2020-O128 - 2020 OX4 - see above
Grabbed MPEC 2020-O129 - 2020 OY4 - see above
0400Grabbed MPEC 2020-O124 - 2020 OT4 - see above
Grabbed MPEC 2020-O125 - 2020 OU4 - see above
Grabbed MPEC 2020-O126 - 2020 OV4 - see above
Grabbed MPEC 2020-O127 - 2020 OW4 - see above