Contents  on 6 October '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 6 October '20

The MPC's NEO Confirmation Page has 33 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 33 objects listed. Of these, seventeen were "one nighters." So far The Tracking News has counted a total of 39 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 6 October '20

Minor Planet Electronic Circulars

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


MPEC 2020-T14 - "15:00 UT" - 2017 US


<< DOU on 6 October '20 >>  MPEC 2020-T13 - "12:22 UT" - Daily Orbit Update


MPEC 2020-T12 - "07:52 UT" - 2020 TC


MPEC 2020-T11 - "01:33 UT" - 2017 WC16


MPEC 2020-T10 - "01:22 UT" - 2020 TB


MPEC 2020-T09 - "01:20 UT" - 2020 TA

Observers  on 6 October '20

A total of 34 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 14 in MPECs 2020-T09, 2020-T10, 2020-T12 & 2020-T13 -- 2020 TC, 2020 TB, 2020 TA, 2020 SY6, 2020 SC6, 2020 RZ2, 2020 RP, 2020 QP5, 2020 MO5, 2015 PS57, 476438, 450648, 450270, 349925
T05ATLAS Haleakala in Hawaii, 16 in MPECs 2020-T10 & 2020-T13 -- 2020 TB, 2020 RK2, 2016 ED85, 2013 PY6, 2007 VX137, 53435, 420302, 253106, 21088, 162173, 8567, 5836, 3200, 2368, 1685, 433
T08ATLAS Mauna Loa in Hawaii, 16 in MPECs 2020-T09, 2020-T10 & 2020-T13 -- 2020 TB, 2020 TA, 2020 PM7, 2016 NV38, 2004 LU3, 87684, 316695, 20826, 169675, 163014, 15817, 6053, 4953, 4055, 3691, 887
U63Burnt Tree Hill Obs., 1 in MPEC 2020-T13 -- 23187
Z841program code 1 via Calar Alto Schmidt in Spain, 1 in MPEC 2020-T13 -- 2020 SO
160Castelmartini Obs. in Italy, 7 in MPEC 2020-T13 -- 2016 RP33, 2016 LZ10, 347813, 257838, 250458, 24445, 16834
703Catalina Sky Survey (CSS) in Arizona, 24 in MPEC 2020-T13 -- 2020 SX3, 2020 QU6, 2020 PC5, 2020 LB3, 2013 TV144, 99935, 69230, 66008, 420302, 325395, 303262, 285990, 253106, 19764, 17182, 162173, 159402, 145656, 8567, 5143, 3288, 3200, 1685, 433
G375program code 5 via Discovery Channel Telescope (DCT) in Arizona, 7 in MPEC 2020-T13 -- 2020 RO2, 2020 RK, 2020 RJ2, 2020 QR5, 2020 FA1, 2017 BQ93, 2012 FP62
N31Eden Obs., 1 in MPEC 2020-T13 -- 420302
E10,program code "," (21) via Faulkes Telescope South in New South Wales, 1 in MPEC 2020-T13 -- 2020 SY3
W46Foxfire Village Obs., 1 in MPEC 2020-T13 -- 2020 PC5
X31Galilei Obs., 1 in MPEC 2020-T10 -- 2020 TB
E89Geyserland Obs. in New Zealand, 3 in MPEC 2020-T13 -- 163692, 163014, 6569
203GiaGa Obs. in Italy, 2 in MPECs 2020-T09 & 2020-T10 -- 2020 TB, 2020 TA
K88GINOP-KHK in Hungary, 1 in MPEC 2020-T09 -- 2020 TA
U55Golden Ears Obs., 4 in MPECs 2020-T12 & 2020-T13 -- 2020 TC, 2020 RK2, 285990, 159402
J95Great Shefford Obs. in England, 2 in MPECs 2020-T09 & 2020-T10 -- 2020 TB, 2020 TA
C401program code 1 via Kuban State Univ. Obs. in Russia, 2 in MPEC 2020-T13 -- 19764, 159402
G96Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2020-T09, 2020-T12 & 2020-T13 -- 2020 TC, 2020 TA, 2020 SR6, 2020 SO, 2016 ED85, 2011 GO27, 2004 UB, 88188, 53430, 489885, 488693, 417949, 380128, 283729, 241596, 159929
Z80Northolt Branch Obs. in England, 1 in MPEC 2020-T09 -- 2020 TA
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPEC 2020-T13 -- 2013 TV144, 162980, 145656, 887
F52Pan-STARRS 2 (PS2) in Hawaii, 3 in MPEC 2020-T13 -- 2020 HP8, 435302, 162173
B49Paus Obs. in Spain, 2 in MPECs 2020-T09 & 2020-T12 -- 2020 TC, 2020 TA
H36Sandlot Obs. in Kansas, 3 in MPECs 2020-T09, 2020-T10 & 2020-T12 -- 2020 TC, 2020 TB, 2020 TA
C95SATINO-1 in France, 1 in MPEC 2020-T13 -- 2020 PT
W88*program code "*" (19) via Slooh.com Chile Obs. in Chile, 2 in MPEC 2020-T13 -- 2008 SW150, 302830
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2020-T12 -- 2020 TC
I52Steward Obs. Mt. Lemmon Station in Arizona, 36 in MPECs 2020-T09, 2020-T10, 2020-T12 & 2020-T13 -- 2020 TC, 2020 TB, 2020 TA, 2020 SY, 2020 SW1, 2020 ST6, 2020 SS2, 2020 SH2, 2020 SB, 2020 RZ9, 2020 RZ, 2020 RX8, 2020 RX3, 2020 RV2, 2020 RR3, 2020 RR2, 2020 RO1, 2020 RM3, 2020 RK2, 2020 RE9, 2020 RE, 2020 RB, 2020 QU6, 2020 QQ6, 2020 QP3, 2020 QL6, 2020 QF6, 2020 QE4, 2020 PS5, 2020 OK7, 2020 NM1, 2020 HU10, 2020 DB5, 2018 GX4, 2017 QY34, 2013 TR132
W33Transit Dreams Obs., 6 in MPEC 2020-T13 -- 2020 SR6, 2020 RK2, 2020 QU6, 2020 QQ6, 2020 PD1, 2020 OG4
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2020-T14 -- 2017 US
T14UH/Tholen NEO Follow-Up CFH Telescope in Hawaii, 1 in MPEC 2020-T14 -- 2017 US
L01Visnjan Obs. in Croatia, 3 in MPECs 2020-T09, 2020-T10 & 2020-T12 -- 2020 TC, 2020 TB, 2020 TA
C51WISE in Earth polar orbit, 4 in MPECs 2020-T11 & 2020-T13 -- 2020 QU4, 2017 WC16, 2010 AB78, 152978
I41Zwicky Transient Facility in southern California, 1 in MPEC 2020-T13 -- 2368
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 October '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 RO2JPL Sentry17002040-204012.796e-09-9.27-9.270JPL: Computed at 07:02 today Pacific time based on 20 observations spanning 6.0508 days (2020-Sep-09.335412 to 2020-Sep-15.386245). Diameter approximately 0.010 km. from weighted mean H=27.57.
2020 RJ2JPL Sentry17002061-2119240.0002549269174-6.08-6.460JPL: Computed at 07:06 today Pacific time based on 31 observations spanning 7.1978 days (2020-Sep-10.20115 to 2020-Sep-17.398973). Diameter approximately 0.005 km. from weighted mean H=29.23.
NEODyS17002064-2118339.27e-05-6.48-6.810NEODyS: "Based on 34 optical observations (of which 3 are rejected as outliers) from 2020-09-10.202 to 2020-09-17.400."
2020 RKJPL Sentry17002089-210122.5315e-07-6.90-7.100JPL: Computed at 07:01 today Pacific time based on 109 observations spanning 13.245 days (2020-Sep-05.24723 to 2020-Sep-18.492654). Diameter approximately 0.030 km. from weighted mean H=25.26.
NEODyS17002060-210455.64e-07-6.57-6.980NEODyS: "Based on 109 optical observations (of which 1 are rejected as outliers) from 2020-09-05.248 to 2020-09-18.493."
2020 QR5JPL Sentry17002103-211571.261185e-06-7.40-7.550JPL: Computed at 07:04 today Pacific time based on 54 observations spanning 22.777 days (2020-Aug-23.629969 to 2020-Sep-15.40711). Diameter approximately 0.012 km. from weighted mean H=27.31.
NEODyS17002102-2118131.19e-07-8.46-8.770NEODyS: "Based on 54 optical observations (of which 0 are rejected as outliers) from 2020-08-23.631 to 2020-09-15.408."
2020 FA1NEODyS1700R E M O V E D-
JPL Sentry17002116-211944.251248e-06-6.55-6.590JPL: Computed at 07:04 today Pacific time based on 74 observations spanning 186.15 days (2020-Mar-16.47938 to 2020-Sep-18.626798). Diameter approximately 0.018 km. from weighted mean H=26.32.
2018 TY4JPL Sentry17002033-203313.134e-04-4.45-4.450JPL: Computed at 06:57 Nov. 13th of 2018 Pacific time based on 23 observations spanning 30.849 days (2018-Oct-10.29667 to 2018-Nov-10.145307). Diameter approximately 0.008 km. from weighted mean H=28.12.
2017 USJPL Sentry1700R E M O V E DJPL: Risk listing removed at 1610 UTC today
2015 TL21JPL Sentry17002061-209563.29609e-06-6.11-6.560JPL: Computed at 08:23 July 18th of 2019 Pacific time based on 89 observations spanning 11.040 days (2015-Oct-08.23237 to 2015-Oct-19.272403). Diameter approximately 0.018 km. from weighted mean H=26.42.
2007 TL16JPL Sentry17002074-2090105.14854e-06-6.02-6.110JPL: Computed at 23:20 April 12th of 2017 Pacific time based on 42 observations spanning 10.115 days (2007-Oct-09.28741 to 2007-Oct-19.40212). Diameter approximately 0.019 km. from weighted mean H=26.21.

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 6 October '20

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

1700Noted that JPL Sentry has updated its 2007 TL16 risk assessment - see above
Noted that JPL Sentry has updated its 2015 TL21 risk assessment - see above
Noted that JPL Sentry has removed 2017 US as an impact risk - see above
Noted that JPL Sentry has updated its 2018 TY4 risk assessment - see above
Noted that JPL Sentry has updated its 2020 FA1 risk assessment - see above
Noted that NEODyS has removed 2020 FA1 as an impact risk - see above
Noted that JPL Sentry has updated its 2020 QR5 risk assessment - see above
Noted that NEODyS has updated its 2020 QR5 risk assessment - see above
Noted that JPL Sentry has updated its 2020 RJ2 risk assessment - see above
Noted that NEODyS has updated its 2020 RJ2 risk assessment - see above
Noted that JPL Sentry has updated its 2020 RK risk assessment - see above
Noted that NEODyS has updated its 2020 RK risk assessment - see above
Noted that JPL Sentry has updated its 2020 RO2 risk assessment - see above
Grabbed MPEC 2020-T12 - 2020 TC - see above
Grabbed MPEC 2020-T13 - Daily Orbit Update - see above
Grabbed MPEC 2020-T14 - 2017 US - see above
0430Grabbed MPEC 2020-T09 - 2020 TA - see above
Grabbed MPEC 2020-T10 - 2020 TB - see above
Grabbed MPEC 2020-T11 - 2017 WC16 - see above