2003 VB12 discovery images 
from Mt. Palomar 14 Nov. 2003

On this day four years ago, 2003 VB12 was discovered by Mike Brown, Chad Trujillo, and Dale Rabinowitz using the Mt. Palomar 1.2m Oschin Telescope. This was announced the next March with this discovery imagery. It is now numbered and named 90377 Sedna, the Solar System's largest known dwarf planet. See A/CC's news coverage from 15 and 16 March 2004. Imagery courtesy of SST.

Contents  on 14 November '07


Editor's note: Today we launch an additional semi-automated news page, the Traffic Report for Earth's Busy Neighborhood. (It is "automated" in that, like with this page and the CRT, all the data is collected and published by program scripts without human intervention, but, to be exact, it is "semi-automated" since these activities don't yet run unattended.)

The latest news: framed access (best), RSS news feed RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site, which now has its own backup 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 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 14 November '07

The MPC's NEO Confirmation Page has 17 listings: 8 new, 9 updated

When last checked at 1805 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had eight new and nine updated listings. Of these, twelve were "one nighters." So far The Tracking News has counted a total of 25 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 14 November '07

Minor Planet Electronic Circulars

As of last check at 1805 UTC, there have been five MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2007-V113 - "15:19 UT" - 2007 VB188

MPEC 2007-V112 - "15:16 UT" - 2007 VA188

MPEC 2007-V111 - "14:34 UT" - 2003 DC14

MPEC 2007-V110 - "13:24 UT" - 2002 XY4

<< DOU on 14 Nov. '07 >>  MPEC 2007-V109 - "07:13 UT" - Daily Orbit Update

Observers  on 14 November '07

Nineteen observing facilities appear in today's MPECs.

CodeObserver / observatory
I77CEAMIG-REA in Brazil, 1 in MPEC 2007-V112 -- 2007 VA188
703Catalina Sky Survey (CSS) in Arizona, 16 in MPEC 2007-V109 -- 2007 VX7, 2007 TG15, 2007 RU17, 2007 RT19, 2004 VT60, 90403, 66272, 21088, 163902, 162723, 161998, 15745, 136617, 11398, 7092, 2212
651Grasslands Obs. in Arizona, 1 in MPEC 2007-V112 -- 2007 VA188
H51Greiner Research Obs. in Wisconsin, 3 in MPEC 2007-V109 -- 2007 VX7, 2007 VQ4, 2007 VL184
701Junk Bond Obs. in Arizona, 2 in MPEC 2007-V109 -- 2007 VX137, 2007 VJ184
682Kanab Obs. in Utah, 1 in MPEC 2007-V109 -- 2007 VD184
704LINEAR in New Mexico, 1 in MPEC 2007-V112 -- 2007 VA188
699LONEOS in Arizona, 7 in MPEC 2007-V109 -- 2007 RU12, 2005 YW55, 2003 WM7, 2001 UY16, 162273, 136617, 3288
130Lumezzane Obs. in Italy, 10 in MPEC 2007-V109 -- 2007 US6, 2007 TG15, 2007 TB23, 2007 RU12, 2006 RO36, 99907, 162142, 154631, 152787, 143678
J40Malaga Obs. in Spain, 1 in MPEC 2007-V109 -- 137084
711McDonald Obs. in Texas, 4 in MPEC 2007-V109 -- 2007 UW3, 2007 UR3, 2007 UA2, 90403
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2007-V109, 2007-V112 & 2007-V113 -- 2007 VH3, 2007 VB188, 2007 VA188, 2007 SP6, 1998 XX2
J93Mt. Tuffley Obs. in England, 1 in MPEC 2007-V109 -- 4954
619Sabadell Obs. in Spain, 1 in MPEC 2007-V109 -- 162142
D21Shenton Park Obs. in Western Australia, 3 in MPECs 2007-V109 & 2007-V112 -- 2007 VH184, 2007 VD138, 2007 VA188
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2007-V109 -- 2003 WM25, 66959
691Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2007-V109 -- 2007 TK8, 2007 SE11, 2003 AK18, 2002 JM97, 1998 QE2, 1997 ET30
291Spacewatch 1.8m telescope in Arizona, 9 in MPECs 2007-V109 & 2007-V112 -- 2007 VN3, 2007 VG, 2007 VA188, 2007 TU24, 2007 TD66, 2007 RV9, 2005 TR50, 2002 RB126, 1999 SO5
6735Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2007-V110 & 2007-V111 -- 2003 DC14, 2002 XY4
6739Heath Rhoades via Table Mtn. Obs. in southern California, 1 in MPEC 2007-V112 -- 2007 VA188

Impact Risk Monitoring  on 14 November '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 1805 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.





Notes for Today's Latest Risk Assessments
2007 VK184NEODyS14092030-2070609.43e-05-2.48-3.050NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2007/11/12.140 to 2007/11/13.527."
2007 VD184JPL Sentry1335205014.2e-10-8.57-8.570JPL: "Analysis based on 20 observations spanning 2.1675 days (2007-Nov-11.08478 to 2007-Nov-13.25232)." Diameter approximately 0.076 km. from mean, weighted H=23.2.
2007 VGJPL Sentry1334R E M O V E DJPL: Risk listing removed at 1220 UTC.
2007 TU24JPL Sentry1408210413.9e-08-5.45-5.450JPL: "Analysis based on 82 observations spanning 33.907 days (2007-Oct-11.26838 to 2007-Nov-14.17554)." Diameter approximately 0.320 km. from mean, weighted H=20.1.

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 14 November '07

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

1536Grabbed MPEC 2007-V112 - 2007 VA188 - see above
Grabbed MPEC 2007-V113 - 2007 VB188 - see above
1508Grabbed MPEC 2007-V111 - 2003 DC14 - see above
1408Noted that JPL Sentry has updated its 2007 TU24 risk assessment - see above
Noted that NEODyS has posted 2007 VK184 as an impact risk - see above
1335Grabbed MPEC 2007-V109 - Daily Orbit Update - see above
1334Noted that JPL Sentry has updated its 2007 VD184 risk assessment - see above
Noted that JPL Sentry has removed 2007 VG as an impact risk - see above
Noted that NEODyS has removed 2007 VG as an impact risk - see above
Grabbed MPEC 2007-V110 - 2002 XY4 - see above