Contents  on 25 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 25 July '20

The MPC's NEO Confirmation Page has 59 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 59 objects listed. Of these, 31 were "one nighters." So far The Tracking News has counted a total of 73 listings on the NEOCP today.

New MPECs  on 25 July '20

Minor Planet Electronic Circulars

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


MPEC 2020-O106 - "21:29 UT" - 2017 QR16


MPEC 2020-O105 - "18:37 UT" - 2020 OY3


MPEC 2020-O104 - "13:39 UT" - 2020 OW3


<< DOU on 25 July '20 >>  MPEC 2020-O103 - "12:23 UT" - Daily Orbit Update


MPEC 2020-O102 - "00:34 UT" - 2020 OU3


MPEC 2020-O101 - "00:31 UT" - 2020 OS3


MPEC 2020-O100 - "00:03 UT" - Comet C/2020 N2 (ATLAS)

Observers  on 25 July '20

A total of 42 observers appear in today's MPECs.

CodeObserver / observatory
U71AHS Obs., 2 in MPEC 2020-O103 -- 2020 OD, 2016 PN
E23Arcadia Obs. in New South Wales, 1 in MPEC 2020-O100 -- C/2020 N2
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2020-O103 & 2020-O104 -- 2020 OW3, 2020 ON2
T05ATLAS Haleakala in Hawaii, 3 in MPECs 2020-O100 & 2020-O103 -- C/2020 N2, 2020 MX3, 477885
T08ATLAS Mauna Loa in Hawaii, 2 in MPECs 2020-O100 & 2020-O103 -- C/2020 N2, 2020 LD
G17BAS Obs., 1 in MPEC 2020-O103 -- 2004 LU3
C77Bernezzo Obs. in Italy, 1 in MPEC 2020-O103 -- 2020 MX3
U63Burnt Tree Hill Obs., 1 in MPEC 2020-O103 -- 2007 CH15
X74Campo dos Amarais Obs., 1 in MPEC 2020-O100 -- C/2020 N2
160Castelmartini Obs. in Italy, 16 in MPEC 2020-O103 -- 2020 OD, 2018 LM4, 2016 PN, 2014 LW21, 2006 UD63, 2004 XP14, 2003 BK47, 90147, 85275, 431775, 428086, 420302, 382503, 19764, 145656, 106589
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 2 in MPEC 2020-O103 -- 2020 KW2, 2020 KC1
W84!program code "!" (10) via DECam in Chile, 1 in MPEC 2020-O103 -- 2013 EH89
W84&program code "&" (15) via DECam in Chile, 1 in MPEC 2020-O103 -- 2014 XM7
K87Dettelbach Vineyard Obs. in Germany, 1 in MPEC 2020-O103 -- 2003 BK47
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 3 in MPECs 2020-O103 & 2020-O105 -- 2020 OY3, 2020 NK1, 494706
K83Forti Obs., 1 in MPEC 2020-O103 -- 2020 OO1
X31Galilei Obs., 1 in MPEC 2020-O100 -- C/2020 N2
E94Gisborne Obs. in New Zealand, 1 in MPEC 2020-O100 -- C/2020 N2
Q62iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-O100 -- C/2020 N2
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-O100 -- C/2020 N2
Q62{Nirmal Paul in India via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2020-O100 -- C/2020 N2
Z32Javalambre Obs., 1 in MPEC 2020-O103 -- 2019 XG1
917Keck Obs. at Pacific Lutheran Univ. in Washington state, 1 in MPEC 2020-O103 -- 2020 CD3
695Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2020-O103 -- 2016 JP5
K91LCO Sutherland A in South Africa, 1 in MPEC 2020-O100 -- C/2020 N2
K38M57 Obs. in Italy, 3 in MPEC 2020-O103 -- 2020 MX3, 2020 HS8, 2003 BK47
568^R. Wainscoat on Mauna Kea in Hawaii, 5 in MPECs 2020-O101, 2020-O102, 2020-O103 & 2020-O105 -- 2020 OY3, 2020 OU3, 2020 OS3, 2020 OJ3, 2020 OG3
474Mt. John Obs. in New Zealand, 12 in MPECs 2020-O100 & 2020-O103 -- 2020 OO2, 2020 OO1, 2020 ON, 2020 NM1, 2020 NK1, 2020 NJ, 2020 NE, 2020 NC, C/2020 N2, 2020 MU1, 2020 LZ1, 2020 FC5
Z80Northolt Branch Obs. in England, 3 in MPEC 2020-O103 -- 2020 OL1, 2020 OD, 90147
F51Pan-STARRS 1 (PS1) in Hawaii, 28 in MPECs 2020-O101, 2020-O102, 2020-O103, 2020-O105 & 2020-O106 -- 2020 OY3, 2020 OU3, 2020 OS3, 2020 OP3, 2020 MG, 2020 LM, 2020 LJ2, 2020 LH1, 2020 KW3, 2020 KC1, 2017 RT1, 2017 QR16, 2017 QM18, 2017 NQ6, 2017 FQ90, 2016 JN, 2014 LW21, 2013 PV6, 2010 JK33, 2007 OY, 2006 UD63, 2003 OA3, 2001 QE34, 2000 WM107, 326388, 163250, 154278, 4257
F52Pan-STARRS 2 (PS2) in Hawaii, 12 in MPECs 2020-O102, 2020-O103 & 2020-O104 -- 2020 OW3, 2020 OU3, 2020 HO10, 2019 XG1, 2017 MW7, 2017 FQ90, 2015 TX143, 2014 LW21, 2006 UD63, 1998 MR24, 415711, 27031
323Perth Obs. in Western Australia, 1 in MPEC 2020-O100 -- C/2020 N2
V93Pin Oak Obs., 6 in MPEC 2020-O103 -- 2019 AN5, 2016 PN, 2006 UD63, 85275, 420302, 3752
654Pomona College Table Mtn. Obs. (PCTMO) in southern California, 8 in MPEC 2020-O103 -- 2020 OZ, 2020 OR, 2020 OM1, 2020 OL1, 2020 OG, 2020 OF1, 2020 OA1, 2020 ND1
104San Marcello Pistoiese Obs. in Italy, 2 in MPEC 2020-O103 -- 2020 NN, 2020 NA
H36Sandlot Obs. in Kansas, 1 in MPEC 2020-O104 -- 2020 OW3
C95SATINO-1 in France, 1 in MPEC 2020-O103 -- 2015 LK21
033Schwarzschild Obs. in Germany, 1 in MPEC 2020-O104 -- 2020 OW3
W88#program code "#" (12) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-O100 -- C/2020 N2
W88%program code "%" (14) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-O100 -- C/2020 N2
W883B. Lutkenhoner in Germany via Slooh.com Chile Obs. in Chile, 1 in MPEC 2020-O100 -- C/2020 N2
Y00SONEAR in Brazil, 1 in MPEC 2020-O103 -- 6569
I52Steward Obs. Mt. Lemmon Station in Arizona, 1 in MPEC 2020-O103 -- 2020 KM3
X02Telescope Live in Chile, 1 in MPEC 2020-O100 -- C/2020 N2
T14UH/Tholen NEO Follow-Up CFH Telescope in Hawaii, 3 in MPEC 2020-O103 -- 2020 OO1, 2020 NK1, 2020 LD
C51WISE in Earth polar orbit, 1 in MPEC 2020-O103 -- 4055
I41Zwicky Transient Facility (ZTF) in southern California, 13 in MPEC 2020-O103 -- 2018 NE4, 2017 XL62, 2016 NO16, 2014 LQ26, 2004 XP14, 88264, 27031, 23714, 16834, 163902, 145656, 8035, 4503
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 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 OO1JPL Sentry16002087-211829.48e-08-8.06-8.230JPL: Computed at 07:26 today Pacific time based on 92 observations spanning 5.0085 days (2020-Jul-20.405792 to 2020-Jul-25.414339). Diameter approximately 0.017 km. from weighted mean H=26.48.
NEODyS16002087-211341.13e-08-9.00-9.30NEODyS: "Based on 92 optical observations (of which 2 are rejected as outliers) from 2020-07-20.407 to 2020-07-25.415."
2020 NK1JPL Sentry20002090-210182.37432993e-05-1.48-1.761JPL #2 for the day: Computed at 11:17 today Pacific time based on 71 observations spanning 11.156 days (2020-Jul-13.567919 to 2020-Jul-24.724304). Diameter approximately 0.540 km. from weighted mean H=18.98.
NEODyS16002086-2101132.16e-05-1.52-1.811NEODyS: "Based on 71 optical observations (of which 0 are rejected as outliers) from 2020-07-13.569 to 2020-07-24.725."
2020 LDJPL Sentry1600R E M O V E DJPL: Risk listing removed at 1416 UTC today
NEODyS1600R E M O V E D-
2014 XM7JPL Sentry16002115-211516.157e-08-6.49-6.490JPL: Computed at 07:02 today Pacific time based on 53 observations spanning 46.903 days (2014-Nov-13.307743 to 2014-Dec-30.210874). Diameter approximately 0.090 km. from weighted mean H=22.88.
NEODyS1600211515.03e-08-6.60-6.60NEODyS: "Based on 53 optical observations (of which 1 are rejected as outliers) from 2014-11-13.309 to 2014-12-30.212."
2014 OP2JPL Sentry16002071-207931.77775e-06-7.72-7.840JPL: Computed at 19:01 April 10th of 2017 Pacific time based on 26 observations spanning 6.4104 days (2014-Jul-25.09565 to 2014-Jul-31.506095). Diameter approximately 0.005 km. from weighted mean H=29.05.

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 25 July '20

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

2200Grabbed MPEC 2020-O106 - 2017 QR16 - see above
2000Noted that JPL Sentry has updated its 2020 NK1 risk assessment - see above
Grabbed MPEC 2020-O105 - 2020 OY3 - see above
1700Noted that JPL Sentry has updated its 2020 NK1 risk assessment - see above
1600Noted that JPL Sentry has updated its 2014 OP2 risk assessment - see above
Noted that JPL Sentry has updated its 2014 XM7 risk assessment - see above
Noted that NEODyS has updated its 2014 XM7 risk assessment - see above
Noted that JPL Sentry has removed 2020 LD as an impact risk - see above
Noted that NEODyS has removed 2020 LD as an impact risk - 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
Grabbed MPEC 2020-O103 - Daily Orbit Update - see above
Grabbed MPEC 2020-O104 - 2020 OW3 - see above
0150Grabbed MPEC 2020-O100 - Comet C/2020 N2 (ATLAS) - see above
Grabbed MPEC 2020-O101 - 2020 OS3 - see above
Grabbed MPEC 2020-O102 - 2020 OU3 - see above