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
- IAU Minor Planet Center
- NEOCP Activity -- 17 listings: 8 new, 9 updated
- New MPECs -- five MPECs
- Observers -- nineteen observing facilities
- Impact Risk Monitoring -- four objects reported
- Chronology
Resources:
- Consolidated Risk Tables - CRT page
- Earth's Busy Neighborhood Traffic Report
- Old & new CRT Archive
- Ephemerides for risk-rated and nearby objects
- Old News Archive & Small Objects Archive
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 (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-V109 time-stamped "07:13 UT" - Daily Orbit Update - see below
- MPEC 2007-V110 time-stamped "13:24 UT" - 2002 XY4 - see below
- MPEC 2007-V111 time-stamped "14:34 UT" - 2003 DC14 - see below
- MPEC 2007-V112 time-stamped "15:16 UT" - 2007 VA188 - see below
- MPEC 2007-V113 time-stamped "15:19 UT" - 2007 VB188
MPEC 2007-V113 - "15:19 UT" - 2007 VB188
- K07VI8B 2007 VB188 (small asteroid, H=26.3 ~19m) was discovered at 0625 UT on 13 Nov. by the Mt. Lemmon Survey (MLS), which observed it at Nov. 13.27-29p4, 13.34p4, 14.18p2, and 14.27-28p4.
MPEC 2007-V112 - "15:16 UT" - 2007 VA188
- K07VI8A 2007 VA188 (Q=5.958 AU, H=19.4 ~446m) was discovered at 0149 UT on 12 Nov. by LINEAR, which observed it at Nov. 12.08-11p4. The discovery was confirmed by MLS (Nov. 13.11-13p4), CEAMIG-REA (Nov. 13.94p3), Heath Rhoades via Table Mtn. Obs. (Nov. 14.09-11p3), Grasslands Obs. (Nov. 14.14p3), the Spacewatch 1.8m telescope (Nov. 14.15-16p3), and Shenton Park Obs. (Nov. 14.51-52p2).
MPEC 2007-V111 - "14:34 UT" - 2003 DC14
- K03D14C 2003 DC14 (Q=4.511 AU, H=16.2 ~1.95 km) from Jim Young via Table Mtn. Obs. (Nov. 11.52-54p4 & 14.54-55p4)
MPEC 2007-V110 - "13:24 UT" - 2002 XY4
- K02X04Y 2002 XY4 (i=43.1°, H=19.0 ~537m) from Young/Table Mtn. (Nov. 11.44-47p4 & 14.43-44p4)
<< DOU on 14 Nov. '07 >> MPEC 2007-V109 - "07:13 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K07VI4D 2007 VD184 (small asteroid, arc=2 days, H=23.2 ~78m) from Kanab Obs. (Nov. 13.19-25p3)
- K07V00G 2007 VG (i=51.2°, arc=12 days, H=21.0 ~214m) from Spacewatch 1.8m (Nov. 13.29-31p3)
- K07T24U 2007 TU24 (arc=34 days, H=20.1 ~323m) from Spacewatch 1.8m (Nov. 13.16-17p3 & 14.17-18p2)
- Observations of recently (no longer) risk-listed objects
- K07V03H 2007 VH3 (small asteroid, arc=11 days, H=22.4 ~112m) from MLS (Nov. 13.31-33p4)
- K07T23B 2007 TB23 (i=38.3°, arc=33 days, H=18.7 ~616m) from Lumezzane Obs. (Nov. 11.90-91p4)
- Observations of small asteroids (H>22.0)
- K07VI4L 2007 VL184 (arc=1 day, H=24.1 ~51m) from Greiner Research Obs. (Nov. 13.38-39p3)
- K07VD8D 2007 VD138 (Q=4.605 AU, arc=4 days, H=24.5 ~43m) from Shenton Park Obs. (Nov. 13.73p3)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K07VI4H 2007 VH184 (Q=4.113 AU, arc=2 days, H=21.9 ~141m) from Shenton Park Obs. (Nov. 13.58-59p3)
- K07T66D 2007 TD66 (arc=32 days, H=21.9 ~141m) from Spacewatch 1.8m (Nov. 13.20-21p3)
- Observations of other objects
- K07VI4J 2007 VJ184 (arc=1 day, H=21.1 ~204m) from Junk Bond Obs. (Nov. 13.17-24p4)
- K07VD7X 2007 VX137 (arc=5 days, H=18.6 ~645m) from Junk Bond Obs. (Nov. 13.38-42p3)
- K07V07X 2007 VX7 (arc=9 days, H=19.3 ~467m) from Greiner Research Obs. (Nov. 13.20p3) and the Catalina Sky Survey (CSS) (Nov. 13.33-35p4)
- K07V04Q 2007 VQ4 (arc=10 days, H=16.0 ~2.14 km, q=1.269 AU) from Greiner Research Obs. (Nov. 13.39-40p3)
- K07V03N 2007 VN3 (arc=10 days, H=21.3 ~186m) from Spacewatch 1.8m (Nov. 13.23-25p3)
- K07U06S 2007 US6 (arc=29 days, H=18.3 ~741m) from Lumezzane Obs. (Nov. 11.94-95p4)
- K07U03W 2007 UW3 (arc=25 days, H=19.5 ~426m) from McDonald Obs. (Nov. 13.36-37p3)
- K07U03R 2007 UR3 (arc=35 days, H=21.3 ~186m) from McDonald Obs. (Nov. 13.26-28p3)
- K07U02A 2007 UA2 (arc=37 days, H=20.9 ~224m) from McDonald Obs. (Nov. 13.19-22p3)
- K07T15G 2007 TG15 (arc=36 days, H=19.6 ~407m) from Lumezzane Obs. (Nov. 11.92-93p4) and CSS (Nov. 13.22-24p4)
- K07T08K 2007 TK8 (arc=37 days, H=21.0 ~214m) from the Spacewatch 0.9m telescope (Nov. 13.09-13p6)
- K07S11E 2007 SE11 (i=48.3°, arc=53 days, H=17.7 ~977m) from Spacewatch 0.9m (Nov. 9.21-25p2 & 13.17-19p2)
- K07S06P 2007 SP6 (arc=53 days, H=18.1 ~812m) from MLS (Nov. 13.37-39p4)
- K07R19T 2007 RT19 (arc=2 opp, H=18.3 ~741m) from CSS (Nov. 11.24-26p4)
- K07R17U 2007 RU17 (q=0.356 AU, arc=61 days, H=18.2 ~776m) from CSS (Nov. 13.13-15p4)
- K07R12U 2007 RU12 (arc=62 days, H=20.0 ~339m) from LONEOS (Nov. 11.35-42p4) and Lumezzane Obs. (Nov. 11.98p4)
- K07R09V 2007 RV9 (arc=65 days, H=20.1 ~323m) from Spacewatch 1.8m (Nov. 14.12-15p3)
- K06R36O 2006 RO36 (arc=2 opp, H=17.9 ~891m) from Lumezzane Obs. (Nov. 11.76-77p4)
- K05Y55W 2005 YW55 (arc=4 opp, H=19.4 ~446m) from LONEOS (Nov. 13.27-35p4)
- K05T50R 2005 TR50 (arc=2 opp, H=20.2 ~309m) from Spacewatch 1.8m (Nov. 13.09p3)
- K04V60T 2004 VT60 (i=43.5°, arc=3 opp, H=17.6 ~1.02 km) from CSS (Nov. 11.27-30p4)
- K03W25M 2003 WM25 (Q=4.100 AU, arc=2 opp, H=17.6 ~1.02 km) from the Siding Spring Survey (SSS) (Nov. 13.46-48p3)
- K03W07M 2003 WM7 (q=0.304 AU, Q=4.668 AU, arc=3 opp, H=17.3 ~1.17 km) from LONEOS (Nov. 13.28-36p4)
- K03A18K 2003 AK18 (arc=3 opp, H=19.7 ~389m) from Spacewatch 0.9m (Nov. 9.49-51p3)
- K02RC6B 2002 RB126 (arc=3 opp, H=18.6 ~645m) from Spacewatch 1.8m (Nov. 14.09p3)
- K02J97M 2002 JM97 (Q=4.213 AU, arc=3 opp, H=16.8 ~1.48 km) from Spacewatch 0.9m (Nov. 9.37-41p3 & 13.42-46p3)
- K01U16Y 2001 UY16 (arc=3 opp, H=19.2 ~490m) from LONEOS (Nov. 11.17-24p4)
- J99S05O 1999 SO5 (arc=2 opp, H=20.9 ~224m) from Spacewatch 1.8m (Nov. 13.47-48p2)
- J98X02X 1998 XX2 (arc=3 opp, H=19.8 ~371m) from MLS (Nov. 13.49-50p4)
- J98Q02E 1998 QE2 (arc=4 opp, H=16.5 ~1.70 km) from Spacewatch 0.9m (Nov. 13.27-30p3)
- J97E30T 1997 ET30 (arc=8 opp, H=16.9 ~1.41 km) from Spacewatch 0.9m (Nov. 9.16-19p3 & 13.15-19p3)
- G3902 163902 2003 SW222 from CSS (Nov. 11.12-14p4)
- G2723 162723 2000 VM2 from CSS (Nov. 12.14-16p4)
- G2273 162273 1999 VL12 from LONEOS (Nov. 13.29-36p4)
- G2142 162142 1998 VR from Sabadell Obs. (Nov. 1.88p1, 2.95p1, 7.02p1 & 10.82p1) and Lumezzane Obs. (Nov. 11.93-94p4)
- G1998 161998 1988 PA from CSS (Nov. 11.18-20p4)
- F4631 154631 2003 WO25 from Lumezzane Obs. (Nov. 12.03-04p4)
- F2787 152787 1999 TB10 from Lumezzane Obs. (Nov. 11.79-81p4)
- E3678 143678 2003 SA224 from Lumezzane Obs. (Nov. 11.94p4)
- D7084 137084 1998 XS16 from Malaga Obs. (Nov. 11.83-84p3)
- D6617 136617 1994 CC from LONEOS (Nov. 13.27-34p4) and CSS (Nov. 13.42-44p4)
- 99907 99907 1989 VA from Lumezzane Obs. (Nov. 11.92p4)
- 90403 90403 2003 YE45 from CSS (Nov. 12.34-37p4) and McDonald Obs. (Nov. 13.43-44p3)
- 66959 66959 1999 XO35 from SSS (Nov. 13.50-53p4)
- 66272 66272 1999 JW6 from CSS (Nov. 13.38-40p4)
- 21088 21088 1992 BL2 from CSS (Nov. 13.51-53p4)
- 15745 15745 1991 PM5 from CSS (Nov. 13.29-31p4)
- 11398 11398 1998 YP11 from CSS (Nov. 11.46-48p4)
- 07092 7092 Cadmus (1992 LC) from CSS (Nov. 11.17-20p4 & 13.21p4)
- 04954 4954 Eric (1990 SQ) from Mt. Tuffley Obs. (Nov. 13.95p3)
- 03288 3288 Seleucus (1982 DV) from LONEOS (Nov. 11.45-52p4)
- 02212 2212 Hephaistos (1978 SB) from CSS (Nov. 12.17-19p4)
Observers on 14 November '07
Nineteen observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| I77 | CEAMIG-REA in Brazil, 1 in MPEC 2007-V112 -- 2007 VA188 |
| 703 | Catalina 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 |
| 651 | Grasslands Obs. in Arizona, 1 in MPEC 2007-V112 -- 2007 VA188 |
| H51 | Greiner Research Obs. in Wisconsin, 3 in MPEC 2007-V109 -- 2007 VX7, 2007 VQ4, 2007 VL184 |
| 701 | Junk Bond Obs. in Arizona, 2 in MPEC 2007-V109 -- 2007 VX137, 2007 VJ184 |
| 682 | Kanab Obs. in Utah, 1 in MPEC 2007-V109 -- 2007 VD184 |
| 704 | LINEAR in New Mexico, 1 in MPEC 2007-V112 -- 2007 VA188 |
| 699 | LONEOS in Arizona, 7 in MPEC 2007-V109 -- 2007 RU12, 2005 YW55, 2003 WM7, 2001 UY16, 162273, 136617, 3288 |
| 130 | Lumezzane Obs. in Italy, 10 in MPEC 2007-V109 -- 2007 US6, 2007 TG15, 2007 TB23, 2007 RU12, 2006 RO36, 99907, 162142, 154631, 152787, 143678 |
| J40 | Malaga Obs. in Spain, 1 in MPEC 2007-V109 -- 137084 |
| 711 | McDonald Obs. in Texas, 4 in MPEC 2007-V109 -- 2007 UW3, 2007 UR3, 2007 UA2, 90403 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 5 in MPECs 2007-V109, 2007-V112 & 2007-V113 -- 2007 VH3, 2007 VB188, 2007 VA188, 2007 SP6, 1998 XX2 |
| J93 | Mt. Tuffley Obs. in England, 1 in MPEC 2007-V109 -- 4954 |
| 619 | Sabadell Obs. in Spain, 1 in MPEC 2007-V109 -- 162142 |
| D21 | Shenton Park Obs. in Western Australia, 3 in MPECs 2007-V109 & 2007-V112 -- 2007 VH184, 2007 VD138, 2007 VA188 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2007-V109 -- 2003 WM25, 66959 |
| 691 | Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2007-V109 -- 2007 TK8, 2007 SE11, 2003 AK18, 2002 JM97, 1998 QE2, 1997 ET30 |
| 291 | Spacewatch 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 |
| 6735 | Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2007-V110 & 2007-V111 -- 2003 DC14, 2002 XY4 |
| 6739 | Heath Rhoades via Table Mtn. Obs. in southern California, 1 in MPEC 2007-V112 -- 2007 VA188 |
Impact Risk Monitoring on 14 November '07
| 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 VK184 | NEODyS | 1409 | 2030-2070 | 60 | 9.43e-05 | -2.48 | -3.05 | 0 | NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2007/11/12.140 to 2007/11/13.527." |
| 2007 VD184 | JPL Sentry | 1335 | 2050 | 1 | 4.2e-10 | -8.57 | -8.57 | 0 | JPL: "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 VG | JPL Sentry | 1334 | R E M O V E D | JPL: Risk listing removed at 1220 UTC. | |||||
| NEODyS | 1334 | R E M O V E D | |||||||
| 2007 TU24 | JPL Sentry | 1408 | 2104 | 1 | 3.9e-08 | -5.45 | -5.45 | 0 | JPL: "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.
| 1536 | Grabbed MPEC 2007-V112 - 2007 VA188 - see above Grabbed MPEC 2007-V113 - 2007 VB188 - see above |
| 1508 | Grabbed MPEC 2007-V111 - 2003 DC14 - see above |
| 1408 | Noted 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 |
| 1335 | Grabbed MPEC 2007-V109 - Daily Orbit Update - see above |
| 1334 | Noted 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 |
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