4 Nov '07 Tracking News

Contents on 4 November '07

IAU Minor Planet Center
- NEOCP Activity -- 40 listings: 16 new, 24 updated
- New MPECs -- fifteen MPECs
- Observers -- 30 observing facilities
Impact Risk Monitoring -- seven objects reported
Chronology

Resources:

Consolidated Risk Tables - CRT page
Old & new CRT Archive
Ephemerides for risk-rated objects
Old News Archive & Small Objects Archive
Note: Due to travel, this Web site and its news pages will update less frequently and at sometimes irregular intervals during the rest of October and early November.

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 4 November '07

The MPC's NEO Confirmation Page has 40 listings: 16 new, 24 updated

When last checked at 2320 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had sixteen new and 24 updated listings. Of these, 24 were "one nighters." So far The Tracking News has counted a total of 61 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 4 November '07

Minor Planet Electronic Circulars

As of last check at 2320 UTC, there have been fifteen MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2007-V13 time-stamped "06:10 UT" - Daily Orbit Update - see below
MPEC 2007-V14 time-stamped "18:19 UT" - 2007 UB66 - see below
MPEC 2007-V15 time-stamped "18:22 UT" - 2007 VZ2 - see below
MPEC 2007-V16 time-stamped "18:25 UT" - 2007 VA3 - see below
MPEC 2007-V17 time-stamped "18:29 UT" - 2007 VB3 - see below
MPEC 2007-V18 time-stamped "18:33 UT" - 2007 VC3 - see below
MPEC 2007-V19 time-stamped "18:35 UT" - 2007 VD3 - see below
MPEC 2007-V20 time-stamped "18:38 UT" - 2007 VE3 - see below
MPEC 2007-V21 time-stamped "18:41 UT" - 2007 VF3 - see below
MPEC 2007-V22 time-stamped "18:45 UT" - 2007 VG3 - see below
MPEC 2007-V23 time-stamped "18:47 UT" - 2007 VH3 - see below
MPEC 2007-V24 time-stamped "18:54 UT" - 2007 VJ3 - see below
MPEC 2007-V25 time-stamped "18:57 UT" - 2007 VK3 - see below
MPEC 2007-V26 time-stamped "18:59 UT" - 2007 VL3 - see below
MPEC 2007-V27 time-stamped "20:52 UT" - 2007 VN3

MPEC 2007-V27 - "20:52 UT" - 2007 VN3

K07V03N 2007 VN3 (H=21.4 ~178m) was discovered at 0234 UT on 3 Nov. by the Catalina Sky Survey (CSS), which observed it at Nov. 3.11-17p8. The discovery was confirmed by Grasslands Obs. (Nov. 3.23-24p3), Gnosca Obs. (Nov. 3.79-80p2), Farra d'Isonzo Obs. (Nov. 3.83-85p3), Remanzacco Obs. (Nov. 3.92p1), Great Shefford Obs. (Nov. 3.94p2), the Mt. Lemmon Survey (MLS) (Nov. 4.13p4), Jim Young via Table Mtn. Obs. (Nov. 4.16-17p4), and the Spacewatch 1.8m telescope (Nov. 4.20-21p3).

MPEC 2007-V26 - "18:59 UT" - 2007 VL3

K07V03L 2007 VL3 (small asteroid, Earth MOID=2.7 LD, H=26.1 ~20m) was discovered at 0555 UT on 3 Nov. by LINEAR, which observed it at Nov. 2.32-35p3 and 3.25-30p5. The discovery was confirmed by Great Shefford Obs. (Nov. 4.01p3), MLS (Nov. 4.23-25p4), and Grasslands Obs. (Nov. 4.27p3). This object was within ten lunar distances (LD) of Earth, reaching 3.0 LD on 30 Oct.

MPEC 2007-V25 - "18:57 UT" - 2007 VK3

K07V03K 2007 VK3 (borderline-small, H=21.9 ~141m) was discovered at 1208 UT on 2 Nov. by the CSS, which observed it at Nov. 2.51-52p4. The discovery was confirmed by MLS (Nov. 3.36-38p4 & 4.20p4), Grasslands Obs. (Nov. 3.41p3), and Great Shefford Obs. (Nov. 4.12-13p3).

MPEC 2007-V24 - "18:54 UT" - 2007 VJ3

K07V03J 2007 VJ3 (risk-listed, Earth MOID=4.3 LD, H=24.9 ~35m) was discovered at 1207 UT on 2 Nov. by the CSS, which observed it at Nov. 2.51-52p4. The discovery was confirmed by Gnosca Obs. (Nov. 2.99p2), Consell Obs. (Nov. 3.02-03p4), Farra d'Isonzo Obs. (Nov. 3.06-09p2), Young/Table Mtn. (Nov. 3.25-26p4), Grasslands Obs. (Nov. 3.32-33p2), MLS (Nov. 3.36-38p4 & 4.20p4), and Great Shefford Obs. (Nov. 4.08-09p3). This object was within ten lunar distances (LD) of Earth, reaching 5.1 LD on 29 Oct.

MPEC 2007-V23 - "18:47 UT" - 2007 VH3

K07V03H 2007 VH3 (risk-listed, H=22.1 ~129m) was discovered at 0954 UT on 2 Nov. by the MLS, which observed it at Nov. 2.41-44p4 at V=22.2, 3.41-43p4, and 4.37-42p3.

MPEC 2007-V22 - "18:45 UT" - 2007 VG3

K07V03G 2007 VG3 (small asteroid, Q=5.542 AU, Earth MOID=6.3 LD, H=24.6 ~41m) was discovered at 0838 UT on 2 Nov. by the CSS, which observed it at Nov. 2.36-42p8 and 3.39p4. The discovery was confirmed by Farra d'Isonzo Obs. (Nov. 2.98-02p2), MLS (Nov. 3.40p4), Grasslands Obs. (Nov. 3.42p3), Remanzacco Obs. (Nov. 3.95-96p2), Great Shefford Obs. (Nov. 3.00p3), and Shenton Park Obs. (Nov. 4.66p3). This object was within ten lunar distances (LD) of Earth, reaching 8.1 LD on 31 Oct.

MPEC 2007-V21 - "18:41 UT" - 2007 VF3

K07V03F 2007 VF3 (small asteroid, H=24.8 ~37m) was discovered at 0802 UT on 2 Nov. by the MLS, which observed it at Nov. 2.33-36p4, 2.40-41p4, 3.26-30p4, 3.35p4, and 4.34-36p4.

MPEC 2007-V20 - "18:38 UT" - 2007 VE3

K07V03E 2007 VE3 (small asteroid, Q=4.024 AU, Earth MOID=6.4 LD, H=23.0 ~85m) was discovered at 0735 UT on 2 Nov. by LINEAR, which observed it at Nov. 2.32-34p3. The discovery was confirmed by Consell Obs. (Nov. 2.98-00p4), Astronomical Research Obs. (ARO) (Nov. 3.15p3), Young/Table Mtn. (Nov. 3.17-22p4), Grasslands Obs. (Nov. 3.31p2), Spacewatch 1.8m (Nov. 3.36-37p3), the Spacewatch 0.9m telescope (Nov. 4.15-19p3), and MLS (Nov. 4.23-25p4).

MPEC 2007-V19 - "18:35 UT" - 2007 VD3

K07V03D 2007 VD3 (borderline-small, H=22.0 ~135m) was discovered at 0709 UT on 2 Nov. by the CSS, which observed it at Nov. 2.30-32p4, 2.39-41p4, 4.34-36p4, and 4.43-44p4. The discovery was confirmed by Consell Obs. (Nov. 3.04-05p5), CEAMIG-REA (Nov. 3.15-16p4), Young/Table Mtn. (Nov. 3.32-33p3), and Grasslands Obs. (Nov. 3.42p3).

MPEC 2007-V18 - "18:33 UT" - 2007 VC3

K07V03C 2007 VC3 (small asteroid, Earth MOID=3.5 LD, H=24.8 ~37m) was discovered at 0626 UT on 2 Nov. by the CSS, which observed it at Nov. 2.27-34p8. The discovery was confirmed by Consell Obs. (Nov. 2.94-96p4), Grasslands Obs. (Nov. 3.32p3), and MLS (Nov. 3.32-34p4 & 4.43p4). This object was within ten lunar distances (LD) of Earth, reaching 4.9 LD on 27 Oct.

MPEC 2007-V17 - "18:29 UT" - 2007 VB3

K07V03B 2007 VB3 (small asteroid, H=25.1 ~32m) was discovered at 0555 UT on 2 Nov. by the MLS, which observed it at Nov. 2.25-32p8, 3.26-28p3, 3.35p3, and 4.17-18p3. The discovery was confirmed by Spacewatch 1.8m (Nov. 3.38-39p3) and Great Shefford Obs. (Nov. 4.02-03p2).

MPEC 2007-V16 - "18:25 UT" - 2007 VA3

K07V03A 2007 VA3 (small asteroid, Earth MOID=3.8 LD, H=25.8 ~23m) was discovered at 0508 UT on 2 Nov. by the MLS, which observed it at Nov. 2.21-24p4, 2.30-32p4, 3.19-21p4, 3.31-32p8, and 4.13-14p4. The discovery was confirmed by ARO (Nov. 3.12-13p3), Spacewatch 1.8m (Nov. 3.29-31p3), Great Shefford Obs. (Nov. 3.96-97p3), and Grasslands Obs. (Nov. 4.25p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 7.0 LD on 12 Nov.

MPEC 2007-V15 - "18:22 UT" - 2007 VZ2

K07V02Z 2007 VZ2 (small asteroid, Earth MOID=7.9 LD, H=24.7 ~39m) was discovered at 0456 UT on 2 Nov. by the CSS, which observed it at Nov. 2.21-23p8, 2.29p4, and 2.35p4. The discovery was confirmed by MLS (Nov. 3.31p8 & 4.16p4). This object was within ten lunar distances (LD) of Earth, reaching 8.5 LD on 31 Oct.

MPEC 2007-V14 - "18:19 UT" - 2007 UB66

K07U66B 2007 UB66 (H=18.5 ~676m) was discovered at 1212 UT on 30 Oct. by the MLS, which observed it at Oct. 30.51-52p3, Nov. 2.51-52p8, 3.51p3, and 4.52p4.

<< DOU on 4 Nov. '07 >> MPEC 2007-V13 - "06:10 UT" - Daily Orbit Update

Observations of risk-listed objects
K07V00G 2007 VG (i=50.7°, arc=3 days, H=20.9 ~224m) from Spacewatch 1.8m (Nov. 4.23-24p3)
K07U51S 2007 US51 (small asteroid, arc=3 days, H=27.2 ~12m) from MLS (Nov. 3.28-30p3) and Spacewatch 1.8m (Nov. 3.41-42p3)
K07U12N 2007 UN12 (small asteroid, arc=13 days, H=28.7 ~6m) from MLS (Nov. 3.27-30p4)
K07U06D 2007 UD6 (small asteroid, arc=14 days, H=28.3 ~7m) from MLS (Nov. 3.26-30p3 at V=22.8)
K07U01Y 2007 UY1 (small asteroid, arc=17 days, H=22.8 ~93m) from Spacewatch 1.8m (Nov. 4.21-22p3)
Observations of recently (no longer) risk-listed objects
K07U51R 2007 UR51 (arc=3 days, H=21.4 ~178m) from MLS (Nov. 3.22-25p4)
K07U12L 2007 UL12 (q=0.386 AU, arc=9 days, H=20.6 ~257m) from MLS (Nov. 3.41-44p4)
K07T23L 2007 TL23 (q=0.299 AU, arc=23 days, H=21.4 ~178m) from Spacewatch 1.8m (Nov. 3.24-25p3 at V=22.2)
K07T23B 2007 TB23 (i=38.3°, arc=24 days, H=18.6 ~645m) from New Millennium Obs. (Oct. 31.95-02p7) and CSS (Nov. 3.25-26p4 & 3.30-31p4)
K07T18X 2007 TX18 (arc=25 days, H=17.3 ~1.17 km) from CSS (Nov. 2.43-45p4) and MLS (Nov. 3.36-38p4)
K07T01G 2007 TG1 (small asteroid, arc=25 days, H=24.4 ~45m) from ARO (Oct. 29.10-11p3)
K07S11R 2007 SR11 (almost small, Q=4.435 AU, arc=37 days, H=22.0 ~135m) from ARO (Oct. 29.21-22p3) and MLS (Nov. 2.25-32p8)
Observations of small asteroids (H>22.0)
K07U40K 2007 UK40 (arc=4 days, H=23.4 ~71m) from Mandi Obs. (Nov. 3.86-87p3)
K07U06P 2007 UP6 (arc=9 days, H=23.1 ~81m) from ARO (Oct. 29.30p3)
K07U03U 2007 UU3 (arc=10 days, H=23.8 ~59m) from ARO (Oct. 29.39-40p3)
K07U00R 2007 UR (Q=4.514 AU, arc=17 days, H=23.9 ~56m) from ARO (Oct. 29.15-16p3)
K07T68V 2007 TV68 (Q=4.094 AU, arc=22 days, H=23.0 ~85m) from Parma Obs. (Nov. 3.93-95p3)
K07T01D 2007 TD1 (arc=30 days, H=25.4 ~28m) from Spacewatch 1.8m (Nov. 3.49-51p3)
K06R01J 2006 RJ1 (arc=2 opp, H=22.2 ~123m) from Spacewatch 1.8m (Nov. 3.26p1) and MLS (Nov. 3.26-30p4, 3.35p4 & 3.48-49p4)
Observations of other objects
K07U51Q 2007 UQ51 (arc=3 days, H=20.3 ~295m) from ARO (Nov. 3.05-06p3)
K07U12M 2007 UM12 (arc=8 days, H=21.6 ~162m) from MLS (Nov. 3.15-18p4)
K07U06S 2007 US6 (arc=20 days, H=18.2 ~776m) from New Millennium Obs. (Oct. 31.95-00p6), LONEOS (Nov. 3.32-36p3), Hamamatsu-Yuto Obs. (Nov. 3.61p3), and Parma Obs. (Nov. 3.85-86p4)
K07U06B 2007 UB6 (arc=14 days, H=19.8 ~371m) from ARO (Oct. 29.23-24p3) and MLS (Nov. 2.36-39p4)
K07U03R 2007 UR3 (arc=25 days, H=21.3 ~186m) from Spacewatch 1.8m (Nov. 3.32p3)
K07U01X 2007 UX1 (arc=17 days, H=20.4 ~282m) from CSS (Nov. 3.42-44p4)
K07T74O 2007 TO74 (arc=19 days, H=19.7 ~389m) from Spacewatch 1.8m (Nov. 3.31p1)
K07T18Y 2007 TY18 (arc=2 opp, H=18.5 ~676m) from CSS (Nov. 2.43-45p4)
K07T08K 2007 TK8 (arc=26 days, H=21.1 ~204m) from LONEOS (Nov. 2.22-28p4)
K07S11E 2007 SE11 (i=48.3°, arc=44 days, H=17.7 ~977m) from Iluro Obs. (Nov. 3.05p2), CSS (Nov. 3.42-44p4), and Hamamatsu-Yuto Obs. (Nov. 3.64p3)
K07S01R 2007 SR1 (arc=42 days, H=19.7 ~389m) from ARO (Oct. 29.05-06p3)
K07RD3M 2007 RM133 (arc=45 days, H=18.3 ~741m) from ARO (Oct. 29.12-14p3)
K07R19T 2007 RT19 (arc=2 opp, H=18.3 ~741m) from CSS (Nov. 2.26-28p4)
K07R12U 2007 RU12 (arc=52 days, H=19.9 ~355m) from New Millennium Obs. (Oct. 31.96-98p5 & Nov. 1.02p1) and MLS (Nov. 3.26-30p3)
K07R09V 2007 RV9 (arc=55 days, H=20.1 ~323m) from Spacewatch 1.8m (Nov. 4.17-19p3)
K07R09A 2007 RA9 (Q=4.127 AU, arc=54 days, H=19.9 ~355m) from Hibiscus Obs. (Nov. 2.51-57p3)
K07R01D 2007 RD1 (arc=60 days, H=21.6 ~162m) from ARO (Oct. 29.09-10p3)
K07Q02K 2007 QK2 (arc=69 days, H=20.6 ~257m) from ARO (Oct. 29.07-08p3)
K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from New Millennium Obs. (Oct. 31.96-03p10), Capannoli Obs. (Nov. 3.01-02p3), Hamamatsu-Yuto Obs. (Nov. 3.56-58p8), and Mandi Obs. (Nov. 3.88-89p3)
K07P08A 2007 PA8 (Q=4.701 AU, arc=2 opp, H=16.0 ~2.14 km, q=0.958 AU) from MLS (Nov. 2.09-11p4)
K07L32R 2007 LR32 (arc=162 days, H=17.2 ~1.23 km) from CSS (Nov. 3.27-29p4)
K07D41A 2007 DA41 (arc=3 opp, H=17.6 ~1.02 km) from Fiamene Obs. (Nov. 1.86p3)
K05S71A 2005 SA71 (arc=2 opp, H=18.8 ~589m) from Mandi Obs. (Nov. 3.90-91p2)
K05S04S 2005 SS4 (q=0.363 AU, arc=3 opp, H=19.0 ~537m) from MLS (Nov. 2.22-24p4)
K04W02S 2004 WS2 (arc=4 opp, H=18.0 ~851m) from Parma Obs. (Nov. 3.97-98p3)
K04V60T 2004 VT60 (i=43.5°, arc=3 opp, H=17.5 ~1.07 km) from CSS (Nov. 2.36-38p4)
K04T16Y 2004 TY16 (arc=4 opp, H=16.8 ~1.48 km) from LINEAR (Nov. 3.43-48p5)
K03W07M 2003 WM7 (q=0.304 AU, Q=4.668 AU, arc=3 opp, H=17.3 ~1.17 km) from Spacewatch 0.9m (Nov. 3.25-28p3) and LONEOS (Nov. 3.39-44p4)
K02U03R 2002 UR3 (i=48.6°, q=0.285 AU, arc=5 opp, H=16.4 ~1.78 km) from Iluro Obs. (Nov. 3.15-18p6)
K02U03O 2002 UO3 (Q=5.335 AU, arc=3 opp, H=17.7 ~977m) from CSS (Nov. 2.21-23p4)
K02RB8C 2002 RC118 (Q=4.624 AU, arc=2 opp, H=16.7 ~1.55 km) from New Millennium Obs. (Oct. 31.95-01p8), Hamamatsu-Yuto Obs. (Nov. 3.54-55p3 & 3.59p1), Mandi Obs. (Nov. 3.93p3), and Masquefa Obs. (Nov. 3.96-97p3)
K01SR0A 2001 SA270 (i=38.5°, q=0.345 AU, arc=4 opp, H=18.0 ~851m) from CSS (Nov. 3.21-24p4)
K01QE2H 2001 QH142 (arc=4 opp, H=18.3 ~741m) from ARO (Oct. 29.31-33p3)
K00S43Q 2000 SQ43 (arc=4 opp, H=18.6 ~645m) from MLS (Nov. 2.37-39p3)
K00GE7V 2000 GV147 (arc=2 opp, H=19.2 ~490m) from MLS (Nov. 2.37-40p4)
J99Y00C 1999 YC (i=38.2°, q=0.241 AU, arc=7 opp, H=17.2 ~1.23 km) from ARO (Oct. 29.26-28p3)
J99A10Q 1999 AQ10 (arc=3 opp, H=20.4 ~282m) from ARO (Oct. 29.34-35p3)
J93T02Q 1993 TQ2 (arc=2 opp, H=20.0 ~339m) from LINEAR (Nov. 3.37-42p5)
G8044 168044 2005 SG from New Millennium Obs. (Oct. 31.86-93p10)
G2173 162173 1999 JU3 from CSS (Nov. 3.15-18p4)
G1998 161998 1988 PA from CSS (Nov. 2.24-26p4)
F9495 159495 2000 UV16 from MLS (Nov. 3.12-14p4)
F4278 154278 2002 TB9 from CSS (Nov. 2.24-26p4)
F2787 152787 1999 TB10 from Crni Vrh Obs. (Nov. 2.80-82p4) and CSS (Nov. 3.27-30p4)
E3678 143678 2003 SA224 from New Millennium Obs. (Oct. 31.95-01p10) and CSS (Nov. 3.36-38p4)
E3651 143651 2003 QO104 from Spacewatch 0.9m (Nov. 3.36-39p3)
D7084 137084 1998 XS16 from San Vito Obs. (Nov. 3.75-76p3)
A0756 100756 1998 FM5 from MLS (Nov. 3.15-19p4)
99907 99907 1989 VA from New Millennium Obs. (Oct. 31.87-93p4), San Vito Obs. (Nov. 2.91-92p3), and CSS (Nov. 3.31-32p4)
86324 86324 1999 WA2 from San Vito Obs. (Nov. 3.71-72p3)
66251 66251 1999 GJ2 from Goodricke-Pigott Obs. (Nov. 2.40-41p2)
53426 53426 1999 SL5 from CSS (Nov. 3.27-29p3)
22771 22771 1999 CU3 from New Millennium Obs. (Oct. 31.87-94p10)
21374 21374 1997 WS22 from CSS (Nov. 3.42-44p4)
20826 20826 2000 UV13 from New Millennium Obs. (Oct. 31.87-93p8) and LINEAR (Nov. 3.19-23p4)
17182 17182 1999 VU from LONEOS (Nov. 3.19-27p4) and LINEAR (Nov. 3.19-24p5)
16636 16636 1993 QP from Crni Vrh Obs. (Nov. 2.76-79p4) and CSS (Nov. 3.27-30p4)
15745 15745 1991 PM5 from CSS (Nov. 2.36-38p4)
11500 11500 1989 UR from Iluro Obs. (Nov. 3.07-08p3) and Atlante Obs. (Nov. 4.02-03p3)
08176 8176 1991 WA from LINEAR (Nov. 3.45-49p4)
08034 8034 Akka (1992 LR) from Spacewatch 0.9m (Nov. 3.31-34p3)
07092 7092 Cadmus (1992 LC) from CSS (Nov. 2.21-23p4)
06489 6489 Golevka (1991 JX) from MLS (Nov. 2.22-24p4)
04954 4954 Eric (1990 SQ) from Fiamene Obs. (Nov. 1.87p5) and San Vito Obs. (Nov. 3.72-73p3)
03553 3553 Mera (1985 JA) from New Millennium Obs. (Oct. 31.96-02p10) and LINEAR (Nov. 3.31-36p5)
02340 2340 Hathor (1976 UA) from Andrew Lowe via RAS Obs. Mayhill (Nov. 3.13-14p4)
02212 2212 Hephaistos (1978 SB) from New Millennium Obs. (Oct. 31.87-94p10) and LONEOS (Nov. 3.30-37p4)
01036 1036 Ganymed (1924 TD) from Iluro Obs. (Nov. 3.22-23p3)

Observers on 4 November '07

A total of 30 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 16 in MPECs 2007-V13, 2007-V16 & 2007-V20 -- 2007 VE3, 2007 VA3, 2007 UU3, 2007 UR, 2007 UQ51, 2007 UP6, 2007 UB6, 2007 TG1, 2007 SR11, 2007 SR1, 2007 RM133, 2007 RD1, 2007 QK2, 2001 QH142, 1999 YC, 1999 AQ10
`J51`	Atlante Obs. in the Canary Islands, 1 in MPEC 2007-V13 -- 11500
`I77`	CEAMIG-REA in Brazil, 1 in MPEC 2007-V19 -- 2007 VD3
`B09`	Capannoli Obs. in Italy, 1 in MPEC 2007-V13 -- 2007 PU11
`703`	Catalina Sky Survey (CSS) in Arizona, 28 in MPECs 2007-V13, 2007-V15, 2007-V18, 2007-V19, 2007-V22, 2007-V24, 2007-V25 & 2007-V27 -- 2007 VZ2, 2007 VN3, 2007 VK3, 2007 VJ3, 2007 VG3, 2007 VD3, 2007 VC3, 2007 UX1, 2007 TY18, 2007 TX18, 2007 TB23, 2007 SE11, 2007 RT19, 2007 LR32, 2004 VT60, 2002 UO3, 2001 SA270, 99907, 53426, 21374, 16636, 162173, 161998, 15745, 154278, 152787, 143678, 7092
`176`	Consell Obs. in Spain, 4 in MPECs 2007-V18, 2007-V19, 2007-V20 & 2007-V24 -- 2007 VJ3, 2007 VE3, 2007 VD3, 2007 VC3
`106`	Crni Vrh Obs. in Slovenia, 2 in MPEC 2007-V13 -- 16636, 152787
`595`	Farra d'Isonzo Obs. in Italy, 3 in MPECs 2007-V22, 2007-V24 & 2007-V27 -- 2007 VN3, 2007 VJ3, 2007 VG3
`B23`	Fiamene Obs. in Italy, 2 in MPEC 2007-V13 -- 2007 DA41, 4954
`143`	Gnosca Obs. in Switzerland, 2 in MPECs 2007-V24 & 2007-V27 -- 2007 VN3, 2007 VJ3
`683`	Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2007-V13 -- 66251
`651`	Grasslands Obs. in Arizona, 9 in MPECs 2007-V16, 2007-V18, 2007-V19, 2007-V20, 2007-V22, 2007-V24, 2007-V25, 2007-V26 & 2007-V27 -- 2007 VN3, 2007 VL3, 2007 VK3, 2007 VJ3, 2007 VG3, 2007 VE3, 2007 VD3, 2007 VC3, 2007 VA3
`J95`	Great Shefford Obs. in England, 7 in MPECs 2007-V16, 2007-V17, 2007-V22, 2007-V24, 2007-V25, 2007-V26 & 2007-V27 -- 2007 VN3, 2007 VL3, 2007 VK3, 2007 VJ3, 2007 VG3, 2007 VB3, 2007 VA3
`379`	Hamamatsu-Yuto Obs. in Japan, 4 in MPEC 2007-V13 -- 2007 US6, 2007 SE11, 2007 PU11, 2002 RC118
`F84`	Hibiscus Obs. in Tahiti, 1 in MPEC 2007-V13 -- 2007 RA9
`B19`	Iluro Obs. in Spain, 4 in MPEC 2007-V13 -- 2007 SE11, 2002 UR3, 11500, 1036
`704`	LINEAR in New Mexico, 8 in MPECs 2007-V13, 2007-V20 & 2007-V26 -- 2007 VL3, 2007 VE3, 2004 TY16, 1993 TQ2, 20826, 17182, 8176, 3553
`699`	LONEOS in Arizona, 5 in MPEC 2007-V13 -- 2007 US6, 2007 TK8, 2003 WM7, 17182, 2212
`B28`	Mandi Obs. in Italy, 4 in MPEC 2007-V13 -- 2007 UK40, 2007 PU11, 2005 SA71, 2002 RC118
`232`	Masquefa Obs. in Spain, 1 in MPEC 2007-V13 -- 2002 RC118
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 31 in MPECs 2007-V13, 2007-V14, 2007-V15, 2007-V16, 2007-V17, 2007-V18, 2007-V20, 2007-V21, 2007-V22, 2007-V23, 2007-V24, 2007-V25, 2007-V26 & 2007-V27 -- 2007 VZ2, 2007 VN3, 2007 VL3, 2007 VK3, 2007 VJ3, 2007 VH3, 2007 VG3, 2007 VF3, 2007 VE3, 2007 VC3, 2007 VB3, 2007 VA3, 2007 US51, 2007 UR51, 2007 UN12, 2007 UM12, 2007 UL12, 2007 UD6, 2007 UB66, 2007 UB6, 2007 TX18, 2007 SR11, 2007 RU12, 2007 PA8, 2006 RJ1, 2005 SS4, 2000 SQ43, 2000 GV147, 159495, 100756, 6489
`A24`	New Millennium Obs. in Italy, 12 in MPEC 2007-V13 -- 2007 US6, 2007 TB23, 2007 RU12, 2007 PU11, 2002 RC118, 99907, 22771, 20826, 168044, 143678, 3553, 2212
`A56`	Parma Obs. in Italy, 3 in MPEC 2007-V13 -- 2007 US6, 2007 TV68, 2004 WS2
`H066`	Andrew Lowe in Alberta via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-V13 -- 2340
`473`	Remanzacco Obs. in Italy, 2 in MPECs 2007-V22 & 2007-V27 -- 2007 VN3, 2007 VG3
`233`	San Vito Obs. in Italy, 4 in MPEC 2007-V13 -- 99907, 86324, 137084, 4954
`D21`	Shenton Park Obs. in Western Australia, 1 in MPEC 2007-V22 -- 2007 VG3
`691`	Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2007-V13 & 2007-V20 -- 2007 VE3, 2003 WM7, 143651, 8034
`291`	Spacewatch 1.8m telescope in Arizona, 13 in MPECs 2007-V13, 2007-V16, 2007-V17, 2007-V20 & 2007-V27 -- 2007 VN3, 2007 VG, 2007 VE3, 2007 VB3, 2007 VA3, 2007 UY1, 2007 US51, 2007 UR3, 2007 TO74, 2007 TL23, 2007 TD1, 2007 RV9, 2006 RJ1
`6735`	Jim Young via Table Mtn. Obs. in southern California, 4 in MPECs 2007-V19, 2007-V20, 2007-V24 & 2007-V27 -- 2007 VN3, 2007 VJ3, 2007 VE3, 2007 VD3

Impact Risk Monitoring on 4 November '07

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2320 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 VJ3	JPL Sentry	2234	2094-2099	2	8.9e-08	-7.12	-7.13	0	JPL: "Analysis based on 29 observations spanning 1.6935 days (2007-Nov-02.5055 to 2007-Nov-04.19903)." Diameter approximately 0.036 km. from mean, weighted H=24.9.

2007 VH3	JPL Sentry	2258	2080	1	1.9e-10	-8.08	-8.08	0	JPL: "Analysis based on 11 observations spanning 2.0076 days (2007-Nov-02.41266 to 2007-Nov-04.42029)." Diameter approximately 0.190 km. from mean, weighted H=21.2.

2007 VG	JPL Sentry	1258	2024-2098	18	1.1e-07	-4.43	-4.80	0	JPL: "Analysis based on 36 observations spanning 3.0350 days (2007-Nov-01.20193 to 2007-Nov-04.23693)." Diameter approximately 0.230 km. from mean, weighted H=20.9.
2007 VG	NEODyS	1258	2024-2090	22	1.11e-07	-4.41	-4.80	0	NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2007/11/01.203 to 2007/11/04.238."

2007 US51	JPL Sentry	1331	2082-2102	5	3.8e-06	-6.59	-6.81	0	JPL: "Analysis based on 30 observations spanning 3.0315 days (2007-Oct-31.38411 to 2007-Nov-03.41562)." Diameter approximately 0.012 km. from mean, weighted H=27.2.
2007 US51	NEODyS	1258	2062-2082	4	1.96e-06	-6.84	-6.88	0	NEODyS: "Based on 30 optical observations (of which 1 are rejected as outliers) from 2007/10/31.385 to 2007/11/03.416."

2007 UN12	JPL Sentry	1258	2069-2107	24	2.2e-04	-5.97	-6.85	0	JPL: "Analysis based on 85 observations spanning 12.930 days (2007-Oct-21.37247 to 2007-Nov-03.30262)." Diameter approximately 0.006 km. from mean, weighted H=28.8.
2007 UN12	NEODyS	1258	2069-2090	31	6.46e-05	-6.42	-7.14	0	NEODyS: "Based on 85 optical observations (of which 0 are rejected as outliers) from 2007/10/21.373 to 2007/11/03.303."

2007 UD6	NEODyS	1408	2058-2090	47	8.78e-05	-5.96	-6.54	0	NEODyS: "Based on 50 optical observations (of which 0 are rejected as outliers) from 2007/10/20.296 to 2007/11/03.298."
2007 UD6	JPL Sentry	1258	2058-2106	57	9.0e-05	-5.95	-6.59	0	JPL: "Analysis based on 50 observations spanning 14.002 days (2007-Oct-20.29569 to 2007-Nov-03.29751)." Diameter approximately 0.007 km. from mean, weighted H=28.3.

2007 UY1	JPL Sentry	1258	2096-2104	4	4.0e-08	-6.78	-6.81	0	JPL: "Analysis based on 58 observations spanning 17.078 days (2007-Oct-18.14415 to 2007-Nov-04.22261)." Diameter approximately 0.093 km. from mean, weighted H=22.8.

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 4 November '07

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

2258	Noted that JPL Sentry has posted 2007 VH3 as an impact risk - see above
2234	Noted that JPL Sentry has posted 2007 VJ3 as an impact risk - see above
2104	Grabbed MPEC 2007-V27 - 2007 VN3 - see above
2021	Grabbed MPEC 2007-V20 - 2007 VE3 - see above Grabbed MPEC 2007-V21 - 2007 VF3 - see above Grabbed MPEC 2007-V22 - 2007 VG3 - see above Grabbed MPEC 2007-V23 - 2007 VH3 - see above Grabbed MPEC 2007-V24 - 2007 VJ3 - see above Grabbed MPEC 2007-V25 - 2007 VK3 - see above Grabbed MPEC 2007-V26 - 2007 VL3 - see above
1839	Grabbed MPEC 2007-V14 - 2007 UB66 - see above Grabbed MPEC 2007-V15 - 2007 VZ2 - see above Grabbed MPEC 2007-V16 - 2007 VA3 - see above Grabbed MPEC 2007-V17 - 2007 VB3 - see above Grabbed MPEC 2007-V18 - 2007 VC3 - see above Grabbed MPEC 2007-V19 - 2007 VD3 - see above
1408	Noted that NEODyS has updated its 2007 UD6 risk assessment - see above
1331	Noted that JPL Sentry has updated its 2007 US51 risk assessment - see above
1258	Noted that JPL Sentry has updated its 2007 UD6 risk assessment - see above Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above Noted that NEODyS has updated its 2007 UN12 risk assessment - see above Noted that NEODyS has updated its 2007 US51 risk assessment - see above Noted that JPL Sentry has updated its 2007 UY1 risk assessment - see above Noted that JPL Sentry has updated its 2007 VG risk assessment - see above Noted that NEODyS has updated its 2007 VG risk assessment - see above Grabbed MPEC 2007-V13 - Daily Orbit Update - see above

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