Contents  on 13 October '07

Resources:

Notes: Until September 16th this daily news page, which had included links to news and to science papers as well as some occasional original reporting, was called Major News About Minor Objects. Without the news-link and science-link sections, this page was renamed as The Tracking News to more accurately reflect its continuing purpose.

The latest news: framed access (best), RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site.

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 this year 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 13 October '07

The MPC's NEO Confirmation Page has 20 listings: 9 new, 11 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had nine new and eleven updated listings. Of these, sixteen were "one nighters." So far Tracking News has counted a total of 33 objects listed on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.

New MPECs  on 13 October '07

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been five MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-T102 - "20:32 UT" - 2007 TF68


MPEC 2007-T101 - "17:11 UT" - 2007 TE66


MPEC 2007-T100 - "17:02 UT" - 2007 TD66


MPEC 2007-T99 - "16:59 UT" - 2007 TC66


<< DOU on 13 Oct. '07 >>  MPEC 2007-T98 - "06:08 UT" - Daily Orbit Update

Observers  on 13 October '07

Eighteen observing facilities appear in today's MPECs.

CodeObserver / observatory
170Begues Obs. in Spain, 8 in MPEC 2007-T98 -- 2007 TH1, 2007 TG8, 2007 TG15, 2007 TC14, 2007 RF5, 21277, 138883, 4954
703Catalina Sky Survey (CSS) in Arizona, 7 in MPECs 2007-T98, 2007-T99 & 2007-T102 -- 2007 TT18, 2007 TF68, 2007 TC66, 2007 RX19, 2007 RW17, 2007 RU17, 2004 KE1
448Desert Moon Obs. in New Mexico, 4 in MPEC 2007-T98 -- 2007 SV11, 2007 SJ, 2007 SE11, 2007 RU10
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-T98 -- 2007 TR65
651Grasslands Obs. in Arizona, 3 in MPECs 2007-T99, 2007-T100 & 2007-T101 -- 2007 TE66, 2007 TD66, 2007 TC66
024Heidelberg-Konigstuhl Obs. in Germany, 1 in MPEC 2007-T102 -- 2007 TF68
701Junk Bond Obs. in Arizona, 3 in MPEC 2007-T98 -- 2007 TV24, 2007 TB23, 2007 TA25
704LINEAR in New Mexico, 17 in MPEC 2007-T98 -- 2007 TV24, 2007 TK8, 2007 RX19, 2007 PU11, 2007 HW3, 2005 SG, 2002 RC118, 2001 RY47, 1993 TQ2, 90373, 68063, 66251, 138883, 5143, 4183, 2212, 1862
699LONEOS in Arizona, 5 in MPEC 2007-T98 -- 2007 KN4, 2002 RC118, 85770, 145656, 143678
130Lumezzane Obs. in Italy, 8 in MPEC 2007-T98 -- 2007 TG8, 2007 RF5, 2004 KE1, 2002 UA31, 2001 RY47, 2000 TH1, 53426, 152787
A06Mataro Obs. in Spain, 1 in MPEC 2007-T98 -- 2007 TL23
474Mt. John Obs. in New Zealand, 2 in MPECs 2007-T98 & 2007-T99 -- 2007 TQ24, 2007 TC66
G96Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2007-T98, 2007-T100 & 2007-T101 -- 2007 TE66, 2007 TD66, 2001 FD90, 1989 DA, 90373, 162980
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPEC 2007-T98 -- 2007 TL23, 2007 TG8, 2007 TC14, 2007 RF5, 2007 PU11, 2007 OV, 2007 KN4, 2001 RY47
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPEC 2007-T98 -- 2007 TL23, 2007 TA19, 1998 SV4, 85275
691Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2007-T98 -- 2007 TB14, 4503, 4486, 2212
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2007-T98 -- 2007 TV18, 2007 SQ6, 2007 RV9
B39Tradate Obs. in Italy, 1 in MPEC 2007-T98 -- 2007 TS19

Impact Risk Monitoring  on 13 October '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 UTC)
See the CRT page for a list of all objects rated recently as risks.
Note that the time horizon for JPL is 100 years from today and for NEODyS is now usually the year 2090.
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
2007 TY24NEODyS13132046-205232.34e-08-7.81-8.110NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2007/10/11.376 to 2007/10/12.365."
2007 TV18NEODyS13132060-206425.89e-10-8.72-8.790NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2007/10/09.205 to 2007/10/12.135."
JPL1313R E M O V E DJPL: Risk listing removed at 1024 UTC.
2007 TU24NEODyS14002022-2084142.25e-07-4.09-4.200NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2007/10/11.269 to 2007/10/12.495."
2007 TL23JPL1359R E M O V E DJPL: Risk listing removed at 1344 UTC.
NEODyS1313R E M O V E D
2007 TE66JPL21072019-2106862.0e-07-4.75-5.520JPL: "Analysis based on 14 observations spanning .94735 days (2007-Oct-12.45462 to 2007-Oct-13.40197)." Diameter approximately 0.200 km. from mean, weighted H=21.2.
2007 TC66JPL19582082-210167.7e-09-5.14-5.360JPL: "Analysis based on 18 observations spanning 1.0190 days (2007-Oct-12.34343 to 2007-Oct-13.36247)." Diameter approximately 0.520 km. from mean, weighted H=19.1.
2007 TB23JPL13132035-2107424.2e-07-3.08-3.530JPL: "Analysis based on 18 observations spanning 2.0688 days (2007-Oct-10.38885 to 2007-Oct-12.45763)." Diameter approximately 0.588 km. from mean, weighted H=18.8.
NEODyS13132035-207632.65e-07-3.23-3.550NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2007/10/10.390 to 2007/10/12.458."
2007 TA25JPL1313210413.9e-10-6.91-6.910JPL: "Analysis based on 18 observations spanning 1.0573 days (2007-Oct-11.33329 to 2007-Oct-12.39054)." Diameter approximately 0.410 km. from mean, weighted H=19.6.

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 an 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" for more about this.

Chronology  on 13 October '07

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

2107Noted that JPL has posted 2007 TE66 as an impact risk - see above
Grabbed MPEC 2007-T102 - 2007 TF68 - see above
1958Noted that JPL has posted 2007 TC66 as an impact risk - see above
1807Grabbed MPEC 2007-T99 - 2007 TC66 - see above
Grabbed MPEC 2007-T100 - 2007 TD66 - see above
Grabbed MPEC 2007-T101 - 2007 TE66 - see above
1359Noted that JPL has removed 2007 TL23 as an impact risk - see above
Noted that NEODyS has posted 2007 TU24 as an impact risk - see above
1314Grabbed MPEC 2007-T98 - Daily Orbit Update - see above
1313Noted that JPL has updated its 2007 TA25 risk assessment - see above
Noted that JPL has posted 2007 TB23 as an impact risk - see above
Noted that NEODyS has posted 2007 TB23 as an impact risk - see above
Noted that NEODyS has removed 2007 TL23 as an impact risk - see above
Noted that JPL has removed 2007 TV18 as an impact risk - see above
Noted that NEODyS has updated its 2007 TV18 risk assessment - see above
Noted that NEODyS has posted 2007 TY24 as an impact risk - see above