Contents  on 3 October '10

Resources:

The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

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. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity  on 3 October '10

The MPC's NEO Confirmation Page has 8 listings: 8 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of thirteen listings on the NEOCP at some point 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 3 October '10

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 2010-T18 - "20:10 UT" - 2010 PL80


MPEC 2010-T17 - "19:22 UT" - 2010 TM


MPEC 2010-T16 - "19:15 UT" - 2010 TL


MPEC 2010-T15 - "19:09 UT" - 2010 TK


MPEC 2010-T14 - "18:53 UT" - 2010 RA147


<< DOU on 3 Oct. '10 >>  MPEC 2010-T13 - "06:07 UT" - Daily Orbit Update


MPEC 2010-T12 - "02:24 UT" - 2010 RN45, 2010 RF64

Observers  on 3 October '10

A total of 21 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 24 in MPECs 2010-T13, 2010-T14, 2010-T16 & 2010-T18 -- 2010 TL, 2010 SR16, 2010 SL15, 2010 SK15, 2010 SJ15, 2010 SJ, 2010 SH15, 2010 SG15, 2010 SG13, 2010 SF15, 2010 SD13, 2010 RQ64, 2010 RN80, 2010 RM42, 2010 RK135, 2010 RJ4, 2010 RC12, 2010 RA91, 2010 RA147, 2010 PM10, 2010 PL80, 2010 ON101, 2010 FO92, 250162
160Castelmartini Obs. in Italy, 3 in MPEC 2010-T13 -- 2001 SA270, 53789, 4401
807Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPEC 2010-T12 -- 2010 RN45, 2010 RF64
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-T13 -- 4660
448Desert Moon Obs. in New Mexico, 4 in MPEC 2010-T13 -- 2010 RM42, 2010 PR10, 2001 PH9, 1998 HG49
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 3 in MPEC 2010-T13 -- 2010 RC130, 2010 MR87, 2000 TJ1
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2010-T13 -- 2010 RN80, 2010 LY63
704LINEAR in New Mexico, 27 in MPEC 2010-T13 -- 2010 SR16, 2010 SK15, 2010 RP80, 2010 RK64, 2010 RG137, 2010 RB130, 2010 PM10, 2010 NW117, 2010 KY39, 2007 TY18, 2007 RU17, 2005 TB15, 2003 FC5, 87311, 66146, 65679, 29075, 249595, 23187, 19764, 162913, 11885, 6239, 5786, 4486, 4183, 2212
J75La Sagra Obs. in Spain, 3 in MPEC 2010-T13 -- 2010 OD101, 2002 DY3, 249615
560Madonna di Dossobuono Obs. in Italy, 5 in MPEC 2010-T13 -- 2010 RN80, 2010 RK43, 2010 RC130, 2010 MF1, 2010 LY63
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-T18 -- 2010 PL80
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2010-T13 -- 2007 RU17
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-T18 -- 2010 PL80
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-T13 -- 2010 SK15
473Remanzacco Obs. in Italy, 1 in MPEC 2010-T18 -- 2010 PL80
H36Sandlot Obs. in Kansas, 4 in MPECs 2010-T13, 2010-T14, 2010-T17 & 2010-T18 -- 2010 TM, 2010 SA17, 2010 RA147, 2010 PL80
691Spacewatch 0.9m telescope in Arizona, 8 in MPECs 2010-T13, 2010-T14, 2010-T15, 2010-T16 & 2010-T17 -- 2010 TM, 2010 TL, 2010 TK, 2010 RB130, 2010 RA147, 2004 EB, 4486, 2212
291Spacewatch 1.8m telescope in Arizona, 12 in MPECs 2010-T13, 2010-T14, 2010-T15, 2010-T16, 2010-T17 & 2010-T18 -- 2010 TM, 2010 TL, 2010 TK, 2010 SS16, 2010 SJ15, 2010 SH15, 2010 SE12, 2010 RV30, 2010 RA147, 2010 PL80, 2010 KK127, 2005 MW1
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-T13 -- 2010 SK15
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2010-T13 -- 2000 TJ1, 250620
I15Wishing Star Obs. in Rhode Island, 2 in MPEC 2010-T13 -- 2010 RN80, 137032
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 October '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL 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 is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) 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
2010 TMJPL Sentry23082011-21081691.6e-07-2.58-2.750JPL: "Analysis based on 12 observations spanning 1.0715 days (2010-Oct-02.44882 to 2010-Oct-03.5203)." Diameter approximately 0.411 km. from mean, weighted H=19.6.
2010 TKJPL Sentry21342018-2108587.2e-08-7.07-7.450JPL: "Analysis based on 12 observations spanning 1.0366 days (2010-Oct-02.32017 to 2010-Oct-03.35681)." Diameter approximately 0.029 km. from mean, weighted H=25.3.
2010 SS16JPL Sentry1545R E M O V E DJPL: Risk listing removed at 0950 UTC.
2010 SJ15JPL Sentry15452027-207558.7e-10-6.85-7.250JPL: "Analysis based on 24 observations spanning 3.0673 days (2010-Sep-29.29976 to 2010-Oct-02.36703)." Diameter approximately 0.140 km. from mean, weighted H=21.9.
NEODyS1545R E M O V E D-
2010 SF15JPL Sentry1545R E M O V E DJPL: Risk listing removed at 0955 UTC.
NEODyS1545R E M O V E D-
2010 SG13JPL Sentry1545R E M O V E DJPL: Risk listing removed at 1011 UTC.
2010 RK135JPL Sentry1545209211.8e-07-7.35-7.350JPL: "Analysis based on 19 observations spanning 2.0122 days (2010-Sep-15.36462 to 2010-Sep-17.37682)." Diameter approximately 0.025 km. from mean, weighted H=25.6.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

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 3 October '10

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

2308Noted that JPL Sentry has posted 2010 TM as an impact risk - see above
2134Noted that JPL Sentry has posted 2010 TK as an impact risk - see above
2040Grabbed MPEC 2010-T18 - 2010 PL80 - see above
2005Grabbed MPEC 2010-T15 - 2010 TK - see above
Grabbed MPEC 2010-T16 - 2010 TL - see above
Grabbed MPEC 2010-T17 - 2010 TM - see above
1904Grabbed MPEC 2010-T14 - 2010 RA147 - see above
1545Noted that JPL Sentry has updated its 2010 RK135 risk assessment - see above
Noted that JPL Sentry has removed 2010 SF15 as an impact risk - see above
Noted that NEODyS has removed 2010 SF15 as an impact risk - see above
Noted that JPL Sentry has removed 2010 SG13 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 SJ15 risk assessment - see above
Noted that NEODyS has removed 2010 SJ15 as an impact risk - see above
Noted that JPL Sentry has removed 2010 SS16 as an impact risk - see above
Grabbed MPEC 2010-T13 - Daily Orbit Update - see above
0608Grabbed MPEC 2010-T12 - 2010 RN45, 2010 RF64 - see above