Contents  on 2 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 2 October '10

The MPC's NEO Confirmation Page has 12 listings: 5 new, 7 updated

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and seven updated listings. Of these, eleven were "one nighters." So far The Tracking News has counted a total of 23 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 2 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-T11 - "16:47 UT" - 2010 TF


MPEC 2010-T10 - "16:38 UT" - 2010 TE


MPEC 2010-T09 - "16:32 UT" - 2010 TD


MPEC 2010-T08 - "16:18 UT" - 2010 SC17


<< DOU on 2 Oct. '10 >>  MPEC 2010-T07 - "06:07 UT" - Daily Orbit Update


MPEC 2010-T06 - "04:27 UT" - 2010 SZ16


MPEC 2010-T05 - "04:18 UT" - 2010 SA17

Observers  on 2 October '10

A total of 22 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 6 in MPECs 2010-T05, 2010-T07, 2010-T08, 2010-T09, 2010-T10 & 2010-T11 -- 2010 TF, 2010 TE, 2010 TD, 2010 SC17, 2010 SA17, 230118
300Bisei Spaceguard Center in Japan, 1 in MPEC 2010-T07 -- 2010 SR16
160Castelmartini Obs. in Italy, 15 in MPEC 2010-T07 -- 2010 RP80, 2010 PM10, 2000 TJ1, 2000 PQ27, 65679, 251346, 250162, 249595, 248083, 243147, 242211, 228502, 199145, 19764, 138847
703Catalina Sky Survey (CSS) in Arizona, 6 in MPEC 2010-T07 -- 2010 RM42, 2010 RG137, 2002 FW5, 65679, 31221, 250706
176Consell Obs. in Spain, 1 in MPEC 2010-T07 -- 2010 SR16
448Desert Moon Obs. in New Mexico, 5 in MPEC 2010-T07 -- 2010 SG13, 2010 RT80, 2010 RB130, 88959, 139345
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 2 in MPEC 2010-T07 -- 2010 SK15, 2010 RC130
585Kiev Comet Station in the Ukraine, 1 in MPEC 2010-T07 -- 2010 LY63
704LINEAR in New Mexico, 14 in MPEC 2010-T07 -- 2010 SD13, 2010 RP80, 2010 RG137, 2010 KY39, 2007 TY18, 2007 RU17, 89355, 65679, 25916, 162913, 161998, 12923, 4486, 2212
J75La Sagra Obs. in Spain, 4 in MPEC 2010-T07 -- 2000 EY106, 249595, 243147, 12538
H01Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2010-T05, 2010-T06, 2010-T07, 2010-T08, 2010-T09, 2010-T10 & 2010-T11 -- 2010 TF, 2010 TE, 2010 TD, 2010 SZ16, 2010 SU15, 2010 SH15, 2010 SC17, 2010 SA17
G96Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2010-T05, 2010-T07, 2010-T08, 2010-T10 & 2010-T11 -- 2010 TF, 2010 TE, 2010 SX11, 2010 SC17, 2010 SA17, 2010 KY39, 2010 GJ65, 2008 UE7, 52768, 20236
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2010-T08 -- 2010 SC17
H36Sandlot Obs. in Kansas, 2 in MPEC 2010-T07 -- 2010 SY3, 2005 TB15
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-T07 -- 2010 QE2
510Siegen Obs. in Germany, 2 in MPEC 2010-T07 -- 2010 SK13, 137032
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2010-T07 & 2010-T09 -- 2010 TD, 2010 KY39
291Spacewatch 1.8m telescope in Arizona, 12 in MPECs 2010-T05, 2010-T07, 2010-T08, 2010-T09, 2010-T10 & 2010-T11 -- 2010 TF, 2010 TE, 2010 TD, 2010 SY3, 2010 SS3, 2010 SP3, 2010 SJ15, 2010 SH15, 2010 SH13, 2010 SC17, 2010 SA17, 2007 EW
A98Taurus-1 Obs. in Belarus, 4 in MPEC 2010-T07 -- 2010 PM10, 2010 MR87, 2010 LY63, 2007 VG189
C51WISE in Earth polar orbit, 14 in MPECs 2010-T06 & 2010-T07 -- 2010 SZ16, 2010 SO16, 2010 OP1, 2007 BT2, 2006 YY2, 2003 MJ4, 2002 OS4, 1998 SV4, 250614, 246138, 164121, 154589, 7839, 3552
G56Walnut Creek Obs. in northern California, 2 in MPEC 2010-T07 -- 2010 RN80, 2010 RC130
J08Zonalunar Obs. in Spain, 1 in MPEC 2010-T07 -- 2010 LY63
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 2 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 TEJPL Sentry2041209411.3e-10-10.73-10.70JPL: "Analysis based on 28 observations spanning 1.0075 days (2010-Oct-01.31595 to 2010-Oct-02.32341)." Diameter approximately 0.022 km. from mean, weighted H=25.9.
2010 TDJPL Sentry18332065-2100159.0e-06-5.85-6.140JPL: "Analysis based on 23 observations spanning 1.2048 days (2010-Oct-01.20604 to 2010-Oct-02.41079)." Diameter approximately 0.014 km. from mean, weighted H=26.9.
2010 SZ16JPL Sentry0600209618.7e-09-5.26-5.260JPL: "Analysis based on 37 observations spanning 4.8536 days (2010-Sep-26.64602 to 2010-Oct-01.49962)." Diameter approximately 0.430 km. from mean, weighted H=19.5.
2010 SU15JPL Sentry1519R E M O V E DJPL: Risk listing removed at 0850 UTC.
2010 SJ15JPL Sentry15192013-2103544.8e-08-4.73-4.970JPL: "Analysis based on 18 observations spanning 1.9955 days (2010-Sep-29.29976 to 2010-Oct-01.29527)." Diameter approximately 0.136 km. from mean, weighted H=22.0.
NEODyS15192013-2090704.77e-08-4.69-4.930NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2010/09/29.301 to 2010/10/01.296."
2010 SH15JPL Sentry1519R E M O V E DJPL: Risk listing removed at 0848 UTC.
NEODyS1519R E M O V E D-
2010 SG13JPL Sentry1519203113.8e-10-5.16-5.160JPL: "Analysis based on 20 observations spanning 4.0615 days (2010-Sep-27.10646 to 2010-Oct-01.16795)." Diameter approximately 0.860 km. from mean, weighted H=18.0.
NEODyS1519R E M O V E D-

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 2 October '10

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

2041Noted that JPL Sentry has posted 2010 TE as an impact risk - see above
1833Noted that JPL Sentry has posted 2010 TD as an impact risk - see above
1740Grabbed MPEC 2010-T11 - 2010 TF - see above
1647Grabbed MPEC 2010-T08 - 2010 SC17 - see above
Grabbed MPEC 2010-T09 - 2010 TD - see above
Grabbed MPEC 2010-T10 - 2010 TE - see above
1519Noted that JPL Sentry has updated its 2010 SG13 risk assessment - see above
Noted that NEODyS has removed 2010 SG13 as an impact risk - see above
Noted that JPL Sentry has removed 2010 SH15 as an impact risk - see above
Noted that NEODyS has removed 2010 SH15 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 SJ15 risk assessment - see above
Noted that NEODyS has updated its 2010 SJ15 risk assessment - see above
Noted that JPL Sentry has removed 2010 SU15 as an impact risk - see above
Grabbed MPEC 2010-T07 - Daily Orbit Update - see above
0600Noted that JPL Sentry has posted 2010 SZ16 as an impact risk - see above
Grabbed MPEC 2010-T05 - 2010 SA17 - see above
Grabbed MPEC 2010-T06 - 2010 SZ16 - see above