Contents on 20 November '07
- IAU Minor Planet Center
- NEOCP Activity -- 28 listings: 4 new, 24 updated
- New MPECs -- one MPEC
- Observers -- 21 observing facilities
- Impact Risk Monitoring -- nine objects reported
- Chronology
Resources:
- Consolidated Risk Tables - the CRT page
- Earth's Busy Neighborhood Traffic Report
- Ephemerides for risk-rated and nearby objects
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
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 20 November '07
The MPC's NEO Confirmation Page has 28 listings: 4 new, 24 updated
When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four new and 24 updated listings. Of these, 20 were "one nighters."
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 20 November '07
Minor Planet Electronic Circulars
As of last check at 2354 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
<< DOU on 20 Nov. '07 >> MPEC 2007-W42 - "07:10 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K07W03V 2007 WV3 (arc=1 day, H=19.4 ~446m) from program code "!" via U.S. Naval Obs. Flagstaff Station (USNO Flagstaff) (Nov. 19.52p2)
- K07W03P 2007 WP3 (small asteroid, arc=1 day, H=23.5 ~68m) from LONEOS (Nov. 19.37-44p4)
- K07VO3P 2007 VP243 (arc=4 days, H=21.4 ~178m) from the Spacewatch 1.8m telescope (Nov. 19.34-35p3)
- K07VO3N 2007 VN243 (small asteroid, arc=4 days, H=22.2 ~123m) from Spacewatch 1.8m (Nov. 19.22-23p2)
- K07VJ1E 2007 VE191 (small asteroid, arc=4 days, H=23.8 ~59m) from USNO Flagstaff/code "!" (Nov. 19.30p1) and Spacewatch 1.8m (Nov. 19.40p3)
- K07VJ1C 2007 VC191 (arc=5 days, H=20.8 ~234m) from Spacewatch 1.8m (Nov. 19.36-37p3 at V=22.1)
- K07VI9H 2007 VH189 (small asteroid, Q=4.405 AU, arc=5 days, H=23.3 ~74m) from Spacewatch 1.8m (Nov. 19.25-26p3)
- K07VI9G 2007 VG189 (arc=6 days, H=18.9 ~562m) from Spacewatch 1.8m (Nov. 19.26-27p2) and USNO Flagstaff/code "!" (Nov. 19.45p2)
- K07VI4K 2007 VK184 (almost small, arc=7 days, H=22.0 ~135m) from Spacewatch 1.8m (Nov. 19.08-09p3) and USNO Flagstaff/code "!" (Nov. 19.24-25p3)
- Observations of recently (no longer) risk-listed objects
- K07W00A 2007 WA (small asteroid, arc=3 days, H=24.7 ~39m) from Shenton Park Obs. (Nov. 19.68-69p3)
- K07VD7W 2007 VW137 (arc=11 days, H=18.3 ~741m) from USNO Flagstaff/code "!" (Nov. 19.32p2)
- K07V12D 2007 VD12 (arc=15 days, H=20.0 ~339m) from Hamamatsu-Yuto Obs. (Nov. 19.64-66p7) and Petit Jean Mtn. South Obs. (PJMSO) (Nov. 20.25-26p11)
- K07U01Y 2007 UY1 (small asteroid, arc=32 days, H=22.8 ~93m) from USNO Flagstaff/code "!" (Nov. 19.21p1)
- Observations of small asteroids (H>22.0)
- K07W03M 2007 WM3 (arc=2 days, H=23.1 ~81m) from USNO Flagstaff/code "!" (Nov. 19.23p3)
- K07W03K 2007 WK3 (arc=2 days, H=26.2 ~19m) from Mt. John Obs. (Nov. 19.54-55p4)
- K07W03J 2007 WJ3 (arc=4 days, H=26.3 ~19m) from Mt. John Obs. (Nov. 19.53p3) and the Spacewatch 0.9m telescope (Nov. 20.16-20p3)
- K07V03D 2007 VD3 (arc=17 days, H=22.2 ~123m) from Desert Moon Obs. (Nov. 19.14-16p3)
- K07V03B 2007 VB3 (arc=17 days, H=25.1 ~32m) from USNO Flagstaff/code "!" (Nov. 19.33p2)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K07VI4H 2007 VH184 (Q=4.092 AU, arc=8 days, H=21.9 ~141m) from the Siding Spring Survey (SSS) (Nov. 19.51p2)
- Observations of other objects
- K07W03Y 2007 WY3 (arc=1 day, H=17.8 ~933m) from Junk Bond Obs. (Nov. 19.46-48p2)
- K07W03Q 2007 WQ3 (arc=29 days, H=20.9 ~224m) from Junk Bond Obs. (Nov. 19.25-32p4) and USNO Flagstaff/code "!" (Nov. 19.35p3)
- K07W00B 2007 WB (arc=3 days, H=18.6 ~645m) from USNO Flagstaff/code "!" (Nov. 19.39-40p3)
- K07VO3O 2007 VO243 (arc=4 days, H=19.3 ~467m) from USNO Flagstaff/code "!" (Nov. 19.41p3)
- K07VI4M 2007 VM184 (arc=8 days, H=21.0 ~214m) from PJMSO (Nov. 20.20-21p8)
- K07VI4G 2007 VG184 (Q=4.316 AU, arc=8 days, H=17.3 ~1.17 km) from SSS (Nov. 19.50p2)
- K07V30Z 2007 VZ30 (arc=31 days, H=21.2 ~195m) from Desert Moon Obs. (Nov. 19.20-26p3) and USNO Flagstaff/code "!" (Nov. 19.30p2)
- K07V07X 2007 VX7 (arc=15 days, H=19.5 ~426m) from Desert Moon Obs. (Nov. 19.11-12p3)
- K07V06X 2007 VX6 (i=41.1°, arc=16 days, H=20.9 ~224m) from Astronomical Research Obs. (ARO) (Nov. 16.31-32p3) and Mt. John Obs. (Nov. 19.60-61p4)
- K07U13Q 2007 UQ13 (arc=20 days, H=19.7 ~389m) from USNO Flagstaff/code "!" (Nov. 19.28p3)
- K07U06S 2007 US6 (arc=3 opp, H=18.3 ~741m) from NEAT's GEODSS Haleakala telescope (1997 Oct. 29.35-37p3), Marc W. Buie via Cerro Tololo Inter-American Obs. (CTIO) (2002 April 7.29p1 & 2002 April 7.39p1), and the Catalina Sky Survey (CSS) (Sept. 10.34-37p4 & 20.30-32p3)
- K07T65R 2007 TR65 (i=43.5°, arc=38 days, H=18.8 ~589m) from USNO Flagstaff/code "!" (Nov. 19.19p2)
- K07T18Z 2007 TZ18 (arc=41 days, H=21.0 ~214m) from USNO Flagstaff/code "!" (Nov. 19.46p1)
- K07T15G 2007 TG15 (arc=42 days, H=19.6 ~407m) from CSS (Nov. 19.07-10p4)
- K07S11E 2007 SE11 (i=48.3°, arc=60 days, H=17.8 ~933m) from Malaga Obs. (Nov. 19.07-09p3) and Hamamatsu-Yuto Obs. (Nov. 19.59-60p5)
- K07S02V 2007 SV2 (arc=60 days, H=21.0 ~214m) from USNO Flagstaff/code "!" (Nov. 19.12p2)
- K07S00J 2007 SJ (arc=63 days, H=16.5 ~1.70 km) from USNO Flagstaff/code "!" (Nov. 19.14p2)
- K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from LONEOS (Nov. 19.36-43p4) and PJMSO (Nov. 20.21-22p6)
- K07L19Q 2007 LQ19 (Q=4.247 AU, arc=159 days, H=17.4 ~1.12 km) from USNO Flagstaff/code "!" (Nov. 19.43p3)
- K07G03S 2007 GS3 (arc=2 opp, H=19.4 ~446m) from PJMSO (Nov. 20.26-27p6)
- K05Y96Q 2005 YQ96 (IEO, Q=0.992 AU, arc=2 opp, H=20.5 ~269m) from Spacewatch 1.8m (Nov. 19.51-52p3)
- K05L39W 2005 LW39 (arc=2 opp, H=20.0 ~339m) from USNO Flagstaff/code "!" (Nov. 19.26-27p3)
- K05G00L 2005 GL (arc=2 opp, H=21.2 ~195m) from Junk Bond Obs. (Nov. 19.13-15p4), USNO Flagstaff/code "!" (Nov. 19.17p3), and Farra d'Isonzo Obs. (Nov. 19.87-90p3)
- K03Y94Q 2003 YQ94 (Q=4.292 AU, arc=2 opp, H=17.8 ~933m) from Desert Moon Obs. (Nov. 19.06-08p3) and USNO Flagstaff/code "!" (Nov. 19.07-08p3)
- K00E70R 2000 ER70 (i=36.9°, arc=4 opp, H=16.9 ~1.41 km) from Desert Moon Obs. (Nov. 19.46-50p3)
- J93T02Q 1993 TQ2 (arc=2 opp, H=20.0 ~339m) from PJMSO (Nov. 20.24-25p5)
- G2215 162215 1999 TL12 from CSS (Nov. 19.24-25p3)
- F4589 154589 2003 MX2 from Desert Moon Obs. (Nov. 19.36-42p3)
- F3591 153591 2001 SN263 from Malaga Obs. (Nov. 19.05-06p3) and PJMSO (Nov. 20.23-24p5)
- E3409 143409 2003 BQ46 from the Mt. Lemmon Survey (MLS) (Nov. 19.29-31p4)
- E1079 141079 2001 XS30 from MLS (Nov. 19.32-34p4)
- D8947 138947 2001 BA40 from Desert Moon Obs. (Nov. 19.31-33p3)
- D7084 137084 1998 XS16 from New Millennium Obs. (Nov. 7.77-84p8)
- 86324 86324 1999 WA2 from New Millennium Obs. (Nov. 7.77-84p8)
- 66272 66272 1999 JW6 from Desert Moon Obs. (Nov. 19.28-29p3)
- 22771 22771 1999 CU3 from LONEOS (Nov. 18.17-21p4)
- 04954 4954 Eric (1990 SQ) from San Vito Obs. (Nov. 19.78-79p2)
- 03200 3200 Phaethon (1983 TB) from LONEOS (Nov. 19.46-52p4)
- 01865 1865 Cerberus (1971 UA) from SSS (Nov. 19.68-70p3)
- 01036 1036 Ganymed (1924 TD) from Huelva Obs. (Nov. 17.06-07p3)
Observers on 20 November '07
A total of 21 observing facilities appear in today's MPEC.
| Code | Observer / observatory |
|---|---|
| H55 | Astronomical Research Obs. in Illinois, 1 in MPEC 2007-W42 -- 2007 VX6 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2007-W42 -- 2007 US6, 2007 TG15, 162215 |
| 8071 | Marc W. Buie via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2007-W42 -- 2007 US6 |
| 448 | Desert Moon Obs. in New Mexico, 8 in MPEC 2007-W42 -- 2007 VZ30, 2007 VX7, 2007 VD3, 2003 YQ94, 2000 ER70, 66272, 154589, 138947 |
| 595 | Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-W42 -- 2005 GL |
| 379 | Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2007-W42 -- 2007 VD12, 2007 SE11 |
| J37 | Huelva Obs., 1 in MPEC 2007-W42 -- 1036 |
| 701 | Junk Bond Obs. in Arizona, 3 in MPEC 2007-W42 -- 2007 WY3, 2007 WQ3, 2005 GL |
| 699 | LONEOS in Arizona, 4 in MPEC 2007-W42 -- 2007 WP3, 2007 PU11, 22771, 3200 |
| J40 | Malaga Obs. in Spain, 2 in MPEC 2007-W42 -- 2007 SE11, 153591 |
| 474 | Mt. John Obs. in New Zealand, 3 in MPEC 2007-W42 -- 2007 WK3, 2007 WJ3, 2007 VX6 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2007-W42 -- 143409, 141079 |
| 566 | NEAT's GEODSS Haleakala telescope in Hawaii, 1 in MPEC 2007-W42 -- 2007 US6 |
| A24 | New Millennium Obs. in Italy, 2 in MPEC 2007-W42 -- 86324, 137084 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPEC 2007-W42 -- 2007 VM184, 2007 VD12, 2007 PU11, 2007 GS3, 1993 TQ2, 153591 |
| 233 | San Vito Obs. in Italy, 1 in MPEC 2007-W42 -- 4954 |
| D21 | Shenton Park Obs. in Western Australia, 1 in MPEC 2007-W42 -- 2007 WA |
| E12 | Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2007-W42 -- 2007 VH184, 2007 VG184, 1865 |
| 691 | Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-W42 -- 2007 WJ3 |
| 291 | Spacewatch 1.8m telescope in Arizona, 8 in MPEC 2007-W42 -- 2007 VP243, 2007 VN243, 2007 VK184, 2007 VH189, 2007 VG189, 2007 VE191, 2007 VC191, 2005 YQ96 |
| 689! | program code "!" via U.S. Naval Obs. Flagstaff Station (USNO Flagstaff) in Arizona, 21 in MPEC 2007-W42 -- 2007 WV3, 2007 WQ3, 2007 WM3, 2007 WB, 2007 VZ30, 2007 VW137, 2007 VO243, 2007 VK184, 2007 VG189, 2007 VE191, 2007 VB3, 2007 UY1, 2007 UQ13, 2007 TZ18, 2007 TR65, 2007 SV2, 2007 SJ, 2007 LQ19, 2005 LW39, 2005 GL, 2003 YQ94 |
Impact Risk Monitoring on 20 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 WV3 | NEODyS | 2035 | 2011-2086 | 36 | 9.78e-09 | -4.71 | -5.04 | 0 | NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2007/11/18.465 to 2007/11/19.522." |
| JPL Sentry | 1457 | 2011-2105 | 43 | 2.6e-08 | -4.34 | -4.61 | 0 | JPL: "Analysis based on 16 observations spanning 1.0575 days (2007-Nov-18.46411 to 2007-Nov-19.52162)." Diameter approximately 0.450 km. from mean, weighted H=19.4. | |
| 2007 WP3 | JPL Sentry | 1457 | 2098-2107 | 21 | 7.7e-06 | -4.64 | -5.08 | 0 | JPL: "Analysis based on 38 observations spanning 1.1707 days (2007-Nov-18.26457 to 2007-Nov-19.43525)." Diameter approximately 0.068 km. from mean, weighted H=23.5. |
| 2007 VP243 | JPL Sentry | 1829 | R E M O V E D | JPL: Risk listing removed at 1805 UTC. | |||||
| NEODyS | 1600 | R E M O V E D | |||||||
| 2007 VN243 | NEODyS | 1601 | 2034-2086 | 23 | 2.27e-06 | -4.38 | -5.01 | 0 | NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2007/11/15.245 to 2007/11/19.227." |
| JPL Sentry | 1457 | 2034-2086 | 17 | 2.1e-06 | -4.42 | -5.00 | 0 | JPL: "Analysis based on 19 observations spanning 3.9820 days (2007-Nov-15.24381 to 2007-Nov-19.22583)." Diameter approximately 0.120 km. from mean, weighted H=22.3. | |
| 2007 VE191 | NEODyS | 1535 | 2015-2020 | 2 | 2.8e-05 | -3.05 | -3.05 | 0 | NEODyS: "Based on 34 optical observations (of which 0 are rejected as outliers) from 2007/11/15.267 to 2007/11/19.405." |
| JPL Sentry | 1531 | 2015-2032 | 2 | 2.8e-05 | -3.05 | -3.05 | 0 | JPL: "Analysis based on 34 observations spanning 4.1378 days (2007-Nov-15.26603 to 2007-Nov-19.40385)." Diameter approximately 0.057 km. from mean, weighted H=23.8. | |
| 2007 VC191 | JPL Sentry | 2035 | R E M O V E D | JPL: Risk listing removed at 1910 UTC. | |||||
| NEODyS | 1535 | R E M O V E D | |||||||
| 2007 VH189 | NEODyS | 1536 | 2013-2088 | 35 | 2.71e-06 | -4.20 | -4.67 | 0 | NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2007/11/14.352 to 2007/11/19.260." |
| JPL Sentry | 1457 | 2013-2100 | 32 | 2.6e-06 | -4.24 | -4.70 | 0 | JPL: "Analysis based on 20 observations spanning 4.9082 days (2007-Nov-14.35096 to 2007-Nov-19.25916)." Diameter approximately 0.070 km. from mean, weighted H=23.4. | |
| 2007 VG189 | JPL Sentry | 2300 | R E M O V E D | JPL: Risk listing removed at 2229 UTC. | |||||
| NEODyS | 1535 | R E M O V E D | |||||||
| 2007 VK184 | JPL Sentry | 1628 | 2035-2062 | 21 | 6.1e-05 | -2.64 | -3.02 | 0 | JPL: "Analysis based on 61 observations spanning 7.1116 days (2007-Nov-12.13904 to 2007-Nov-19.25067)." Diameter approximately 0.130 km. from mean, weighted H=22.0. |
| NEODyS | 1601 | 2036-2069 | 24 | 6.0e-05 | -2.64 | -3.02 | 0 | NEODyS: "Based on 61 optical observations (of which 0 are rejected as outliers) from 2007/11/12.140 to 2007/11/19.251." | |
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 20 November '07
Times are UTC for when the items were noted or added by The Tracking News.
| 2300 | Noted that JPL Sentry has removed 2007 VG189 as an impact risk - see above |
| 2035 | Noted that JPL Sentry has removed 2007 VC191 as an impact risk - see above Noted that NEODyS has posted 2007 WV3 as an impact risk - see above |
| 1829 | Noted that JPL Sentry has removed 2007 VP243 as an impact risk - see above |
| 1628 | Noted that JPL Sentry has updated its 2007 VK184 risk assessment - see above |
| 1601 | Noted that NEODyS has updated its 2007 VK184 risk assessment - see above Noted that NEODyS has updated its 2007 VN243 risk assessment - see above |
| 1600 | Noted that NEODyS has removed 2007 VP243 as an impact risk - see above |
| 1536 | Noted that NEODyS has updated its 2007 VH189 risk assessment - see above |
| 1535 | Noted that NEODyS has removed 2007 VC191 as an impact risk - see above Noted that NEODyS has updated its 2007 VE191 risk assessment - see above Noted that NEODyS has removed 2007 VG189 as an impact risk - see above |
| 1531 | Noted that JPL Sentry has updated its 2007 VE191 risk assessment - see above |
| 1458 | Grabbed MPEC 2007-W42 - Daily Orbit Update - see above |
| 1457 | Noted that JPL Sentry has updated its 2007 VH189 risk assessment - see above Noted that JPL Sentry has updated its 2007 VN243 risk assessment - see above Noted that JPL Sentry has updated its 2007 WP3 risk assessment - see above Noted that JPL Sentry has updated its 2007 WV3 risk assessment - see above |
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