12 Oct '07 Tracking News

Contents on 12 October '07

IAU Minor Planet Center
- NEOCP Activity -- 19 listings: 6 new, 13 updated
- New MPECs -- eighteen MPECs
- Observers -- 37 observing facilities
Impact Risk Monitoring -- eight objects reported
Chronology

Resources:

Consolidated Risk Tables - CRT page
Ephemerides for risk-rated objects

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 12 October '07

The MPC's NEO Confirmation Page has 19 listings: 6 new, 13 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had six new and thirteen updated listings. Of these, eighteen were "one nighters." So far Tracking News has counted a total of 36 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 12 October '07

Minor Planet Electronic Circulars

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

MPEC 2007-T80 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2007-T81 time-stamped "13:25 UT" - 2007 TY18 = 1997 GF45 - see below
MPEC 2007-T82 time-stamped "14:16 UT" - 2007 TQ24 - see below
MPEC 2007-T83 time-stamped "14:19 UT" - 2007 TR24 - see below
MPEC 2007-T84 time-stamped "15:15 UT" - 2007 TS24 - see below
MPEC 2007-T85 time-stamped "15:39 UT" - 2007 TT24 - see below
MPEC 2007-T86 time-stamped "15:41 UT" - 2007 TU24 - see below
MPEC 2007-T87 time-stamped "15:44 UT" - 2007 TV24 - see below
MPEC 2007-T88 time-stamped "15:48 UT" - 2007 TW24 - see below
MPEC 2007-T89 time-stamped "15:50 UT" - 2007 TX24 - see below
MPEC 2007-T90 time-stamped "15:53 UT" - 2007 TY24 - see below
MPEC 2007-T91 time-stamped "16:27 UT" - 2007 TA25 - see below
MPEC 2007-T92 time-stamped "16:34 UT" - 2007 TB25 - see below
MPEC 2007-T93 time-stamped "17:45 UT" - Comets C/2007 K19, 2007 K20 (SOHO) - see below
MPEC 2007-T94 time-stamped "17:49 UT" - Comets C/2007 L1, 2007 L2, 2007 L3, 2007 L4, 2007 L5 (SOHO) - see below
MPEC 2007-T95 time-stamped "19:59 UT" - 2006 RC103 - see below
MPEC 2007-T96 time-stamped "23:01 UT" - 2007 TK8 - see below
MPEC 2007-T97 time-stamped "23:24 UT" - 2007 TR65

MPEC 2007-T97 - "23:24 UT" - 2007 TR65

K07T65R 2007 TR65 (i=43.9°, H=18.9 ~562m) was discovered at 0619 UT on 12 Oct. by the Catalina Sky Survey (CSS), which observed it at Oct. 12.26-29p4 and 12.33-34p4. The discovery was confirmed by Grasslands Obs. (Oct. 12.36p3), Mt. John Obs. (Oct. 12.58p3), Remanzacco Obs. (Oct. 12.91-92p3), and Gnosca Obs. (Oct. 12.91-92p2).

MPEC 2007-T96 - "23:01 UT" - 2007 TK8

K07T08K 2007 TK8 (H=20.9 ~224m) was discovered at 2322 UT on 7 Oct. by Pla D'Arguines Obs., which observed it at Oct. 7.97-00p5, 8.88-90p6, and 12.83-84p4. The discovery was confirmed by CSS (Oct. 7.32-33p4), LINEAR (Oct. 9.25-30p4), and La Canada Obs. (Oct. 12.88-90p3).

MPEC 2007-T95 - "19:59 UT" - 2006 RC103

K06RA3C 2006 RC103 (KBO, q=36.131 AU, Q=47.776 AU, H=6.5 ~170 km) from Las Campanas Obs. (July 11.35p1 & 11.40p1) and Anderson Mesa Station (Oct. 11.10p1 & 11.18p1)

MPEC 2007-T94 - "17:49 UT" - Comets C/2007 L1, 2007 L2, 2007 L3, 2007 L4, 2007 L5 (SOHO)

CK07L050 C/2007 L5 from the LASCO Coronagraph 2 on the Solar & Heliospheric Obs. (SOHO) (June 9.37-46p16 & 9.52-56p6)
CK07L040 C/2007 L4 from SOHO C2 (June 7.70-90p26)
CK07L030 C/2007 L3 from the LASCO Coronagraph 3 on the Solar & Heliospheric Obs. (SOHO) (June 6.39-53p16, 6.57-60p4, 6.64-93p28, 6.97-03p8, 7.07-28p22, 7.32-53p22, 7.57-76p18 & 7.82-90p10) and SOHO C2 (June 7.66-17p68)
CK07L020 C/2007 L2 from SOHO C3 (June 4.97-07p12, 5.13-53p42, 5.57-78p22 & 5.82-90p10) and SOHO C2 (June 5.90-21p46)
CK07L010 C/2007 L1 from SOHO C3 (June 4.31-43p16) and SOHO C2 (June 4.42-63p34)

MPEC 2007-T93 - "17:45 UT" - Comets C/2007 K19, 2007 K20 (SOHO)

CK07K200 C/2007 K20 from SOHO C2 (May 31.13-29p24)
CK07K190 C/2007 K19 from SOHO C2 (May 28.33-39p12)

MPEC 2007-T92 - "16:34 UT" - 2007 TB25

K07T25B 2007 TB25 (small asteroid, H=22.2 ~123m) was discovered at 0917 UT on 11 Oct. by the CSS, which observed it at Oct. 11.39-41p4 and 11.48p3. The discovery was confirmed by the Mt. Lemmon Survey (MLS) (Oct. 12.48p8).

MPEC 2007-T91 - "16:27 UT" - 2007 TA25

K07T25A 2007 TA25 (risk-listed, Q=4.287 AU, H=19.7 ~389m) was discovered at 0759 UT on 11 Oct. by the MLS, which observed it at Oct. 11.33-35p4, 11.43p4, and 12.37-39p4. The discovery was confirmed by Grasslands Obs. (Oct. 12.30p2).

MPEC 2007-T90 - "15:53 UT" - 2007 TY24

K07T24Y 2007 TY24 (risk-listed, Q=4.235 AU, H=25.3 ~29m) was discovered at 0900 UT on 11 Oct. by the MLS, which observed it at Oct. 11.38-39p4, 11.44p4, and 12.36p4. The discovery was confirmed by Grasslands Obs. (Oct. 11.45p2).

MPEC 2007-T89 - "15:50 UT" - 2007 TX24

K07T24X 2007 TX24 (small asteroid, H=24.9 ~35m) was discovered at 0802 UT on 11 Oct. by the MLS, which observed it at Oct. 11.33-37p8, 11.43p4, and 12.35-36p4. The discovery was confirmed by Powell Obs. (Oct. 11.39p4) and Grasslands Obs. (Oct. 11.39p2).

MPEC 2007-T88 - "15:48 UT" - 2007 TW24

K07T24W 2007 TW24 (small asteroid, Earth MOID=3.1 LD, H=26.0 ~21m) was discovered at 0754 UT on 11 Oct. by the MLS, which observed it at Oct. 11.33-35p4 and 12.28p4. The discovery was confirmed by Grasslands Obs. (Oct. 11.37p2).

MPEC 2007-T87 - "15:44 UT" - 2007 TV24

K07T24V 2007 TV24 (H=18.0 ~851m) was discovered at 0729 UT on 11 Oct. by LINEAR, which observed it at Oct. 11.31-36p5. The discovery was confirmed by Gaisberg Obs. (Oct. 12.01-02p3), Alter Satzberg Obs. (Oct. 12.02-03p2), Schiaparelli Obs. (Oct. 12.11-12p3), Modra Obs. (Oct. 12.12-13p2), Grasslands Obs. (Oct. 12.33p3), and the Spacewatch 0.9m telescope (Oct. 12.43-47p3).

MPEC 2007-T86 - "15:41 UT" - 2007 TU24

K07T24U 2007 TU24 (risk-listed, Earth MOID=0.8 LD, H=20.1 ~323m) was discovered at 0626 UT on 11 Oct. by the CSS, which observed it at Oct. 11.27-29p4 and 11.34-35p4. The discovery was confirmed by Grasslands Obs. (Oct. 11.33p3), Powell Obs. (Oct. 11.34p4), Schiaparelli Obs. (Oct. 12.05-07p2), Jim Young via Table Mtn. Obs. (Oct. 12.25-26p4), MLS (Oct. 12.33-34p4), and Mt. John Obs. (Oct. 12.48-49p3).

MPEC 2007-T85 - "15:39 UT" - 2007 TT24

K07T24T 2007 TT24 (small asteroid, H=27.0 ~13m) was discovered at 0623 UT on 11 Oct. by the MLS, which observed it at Oct. 11.27-31p7 and 12.28p4.

MPEC 2007-T84 - "15:15 UT" - 2007 TS24

K07T24S 2007 TS24 (small asteroid, Q=4.628 AU, Earth MOID=7.1 LD, H=24.7 ~39m) was discovered at 0536 UT on 11 Oct. by the CSS, which observed it at Oct. 11.23-26p4 and 11.35p4. The discovery was confirmed by Grasslands Obs. (Oct. 11.34-35p3), Powell Obs. (Oct. 11.36-37p4), and MLS (Oct. 12.35p4).

MPEC 2007-T83 - "14:19 UT" - 2007 TR24

K07T24R 2007 TR24 (H=20.0 ~339m) was discovered at 0457 UT on 11 Oct. by the CSS, which observed it at Oct. 11.21-23p4 and 11.34-35p4. The discovery was confirmed by Grasslands Obs. (Oct. 11.35-36p3), Schiaparelli Obs. (Oct. 11.93-98p3), Young/Table Mtn. (Oct. 12.32-34p4), and MLS (Oct. 12.33-34p4).

MPEC 2007-T82 - "14:16 UT" - 2007 TQ24

K07T24Q 2007 TQ24 (borderline-small, q=0.365 AU, Earth MOID=6.6 LD, H=21.9 ~141m) was discovered at 0457 UT on 11 Oct. by the CSS, which observed it at Oct. 11.21-23p4 and 11.30-34p7. The discovery was confirmed by Grasslands Obs. (Oct. 11.33-34p3), Powell Obs. (Oct. 11.35-36p4), Schiaparelli Obs. (Oct. 12.02-03p2), Young/Table Mtn. (Oct. 12.27-28p4), and MLS (Oct. 12.33-34p4).

MPEC 2007-T81 - "13:25 UT" - 2007 TY18 = 1997 GF45

K07T18Y 2007 TY18 (H=18.7 ~616m) was discovered at 1015 UT on 9 Oct. by the Spacewatch 0.9m, which observed it at Oct. 9.43-46p3. The discovery was confirmed by Astronomical Research Obs. (ARO) (Oct. 10.25-27p3 & 11.33p3), MLS (Oct. 10.41-43p4 & 11.44-45p4), Junk Bond Obs. (Oct. 11.38-45p4), Tenagra II Obs. (Oct. 11.40-41p3), and the Spacewatch 1.8m telescope (Oct. 11.50p3).

<< DOU on 12 Oct. '07 >> MPEC 2007-T80 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K07T23L 2007 TL23 (q=0.298 AU, arc=1 day, H=21.2 ~195m) from Schiaparelli Obs. (Oct. 11.90-91p3)
K07T22X 2007 TX22 (small asteroid, arc=0 days, H=28.4 ~7m) from Tenagra II Obs. (Oct. 11.28p3)
K07T18U 2007 TU18 (small asteroid, arc=2 days, H=25.0 ~34m) from Heidelberg-Konigstuhl Obs. (Oct. 10.79p3), KLENOT (Oct. 10.82p2), and Powell Obs. (Oct. 11.15-16p3)
K07T16L 2007 TL16 (small asteroid, arc=2 days, H=26.3 ~19m) from Powell Obs. (Oct. 11.13p4) and Farpoint Obs. (Oct. 11.40-41p3)
K07T15M 2007 TM15 (i=62.0°, arc=3 days, H=21.4 ~178m) from Farpoint Obs. (Oct. 11.44p3)
Observations of recently (no longer) risk-listed objects
K07T15L 2007 TL15 (small asteroid, arc=3 days, H=24.2 ~49m) from Spacewatch 1.8m (Oct. 11.27-28p2)
K07T14C 2007 TC14 (small asteroid, arc=3 days, H=22.1 ~129m) from Powell Obs. (Oct. 11.12p3), Petit Jean Mtn. South Obs. (PJMSO) (Oct. 11.35-36p6), and Farpoint Obs. (Oct. 11.42p4)
K07T14B 2007 TB14 (small asteroid, Q=4.078 AU, arc=3 days, H=24.4 ~45m) from Farpoint Obs. (Oct. 11.42-43p4)
K07T01H 2007 TH1 (small asteroid, arc=6 days, H=22.1 ~129m) from PJMSO (Oct. 11.40-41p4)
K07S11R 2007 SR11 (almost small, Q=4.444 AU, arc=15 days, H=21.9 ~141m) from Spacewatch 1.8m (Oct. 11.47p3)
K07RD3Q 2007 RQ133 (Q=4.581 AU, arc=26 days, H=18.7 ~616m) from Spacewatch 0.9m (Oct. 11.27-31p3)
Observations of small asteroids (H>22.0)
K07T18T 2007 TT18 (arc=2 days, H=23.1 ~81m) from Heidelberg-Konigstuhl Obs. (Oct. 10.80-81p3), KLENOT (Oct. 10.81p3), Powell Obs. (Oct. 11.16p3), and LINEAR (Oct. 11.21-24p4)
K07T15H 2007 TH15 (arc=3 days, H=24.0 ~54m) from MLS (Oct. 11.30-32p4 & 11.42p4)
K07T15E 2007 TE15 (arc=3 days, H=25.5 ~27m) from Powell Obs. (Oct. 11.20-22p3)
K07T05K 2007 TK5 (arc=5 days, H=23.5 ~68m) from Jornada Obs. (Oct. 12.12-14p3) and Young/Table Mtn. (Oct. 12.13-17p5)
K07S00H 2007 SH (arc=2 days, H=26.2 ~19m) from ARO (Sept. 18.15p3)
K07R19Z 2007 RZ19 (arc=27 days, H=22.2 ~123m) from Spacewatch 0.9m (Oct. 11.21-25p3)
K07H04V 2007 HV4 (arc=3 days, H=28.7 ~6m) from KLENOT (April 20.83p2)
K07E26K 2007 EK26 (arc=5 days, H=25.0 ~34m) from Remanzacco Obs. (March 12.81-82p3) and Gnosca Obs. (March 12.87-88p3)
K07C50X 2007 CX50 (arc=22 days, H=24.7 ~39m) from Remanzacco Obs. (Feb. 15.86p1)
K06X02H 2006 XH2 (Q=4.001 AU, arc=12 days, H=24.4 ~45m) from Farpoint Obs. (2006 Dec. 14.08-09p4)
Observations of other objects
K07T19S 2007 TS19 (arc=2 days, H=20.8 ~234m) from Alter Satzberg Obs. (Oct. 12.04-05p5)
K07T19J 2007 TJ19 (i=40.8°, arc=2 days, H=21.1 ~204m) from Powell Obs. (Oct. 11.11p4) and Young/Table Mtn. (Oct. 12.17-20p4)
K07T18Y 2007 TY18 (arc=2 days, H=18.1 ~812m) from ARO (Oct. 11.33p3) and Junk Bond Obs. (Oct. 11.38-45p4)
K07T15K 2007 TK15 (arc=3 days, H=21.0 ~214m) from MLS (Oct. 11.44-45p4)
K07T15G 2007 TG15 (arc=3 days, H=19.9 ~355m) from Klet Obs. (Oct. 10.89p5) and Fenwick Obs. (Oct. 11.12-13p2)
K07T08G 2007 TG8 (Q=4.308 AU, arc=28 days, H=18.8 ~589m) from Klet Obs. (Oct. 10.88p5)
K07RE7T 2007 RT147 (arc=29 days, H=18.2 ~776m) from CSS (Oct. 11.15-16p3)
K07RD3P 2007 RP133 (Q=4.022 AU, arc=26 days, H=20.8 ~234m) from PJMSO (Oct. 11.33-34p5)
K07R05F 2007 RF5 (arc=36 days, H=18.4 ~708m) from Hamamatsu-Yuto Obs. (Oct. 11.53-55p4)
K07Q02K 2007 QK2 (arc=51 days, H=20.6 ~257m) from Spacewatch 0.9m (Oct. 11.10p1)
K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from PJMSO (Oct. 11.37-38p7) and Hamamatsu-Yuto Obs. (Oct. 11.56-58p10)
K07O00Y 2007 OY (arc=83 days, H=20.8 ~234m) from the Siding Spring Survey (SSS) (July 19.58p2)
K07M24B 2007 MB24 (i=47.7°, arc=80 days, H=18.2 ~776m) from Young/Table Mtn. (June 26.33-35p4)
K07M13M 2007 MM13 (i=38.2°, arc=101 days, H=17.7 ~977m) from Lulin Minor Bodies Tracking (LIMIT) (June 24.56-57p5)
K07L32R 2007 LR32 (arc=139 days, H=17.2 ~1.23 km) from Tradate Obs. (Oct. 9.87p1) and Hamamatsu-Yuto Obs. (Oct. 11.47-49p3)
K07K04N 2007 KN4 (Q=5.446 AU, arc=3 opp, H=16.9 ~1.41 km) from PJMSO (Oct. 11.30-32p6)
K07G03S 2007 GS3 (arc=2 opp, H=19.3 ~467m) from LINEAR (Oct. 11.37-42p5)
K07A12S 2007 AS12 (arc=3 opp, H=19.2 ~490m) from McCarthy Obs. (Jan. 17.10-13p4)
K06S06C 2006 SC6 (arc=3 opp, H=18.0 ~851m) from MLS (Oct. 11.11-13p4)
K06C00G 2006 CG (arc=3 opp, H=19.1 ~513m) from Jornada Obs. (Oct. 12.09-11p2)
K05B14G 2005 BG14 (arc=2 opp, H=18.6 ~645m) from LIMIT (May 8.62-63p3)
K02RB8C 2002 RC118 (Q=4.624 AU, arc=2 opp, H=16.7 ~1.55 km) from Chante-Perdrix Obs. (Oct. 11.01-05p3) and PJMSO (Oct. 11.39-40p5)
K01V05K 2001 VK5 (arc=4 opp, H=17.8 ~933m) from MLS (Oct. 11.48-49p4)
J93T02Q 1993 TQ2 (arc=2 opp, H=20.0 ~339m) from Spacewatch 1.8m (Oct. 11.51-52p3)
G2117 162117 1998 SD15 from CSS (Oct. 11.14-16p4)
A0756 100756 1998 FM5 from LINEAR (Oct. 11.22-24p3)
85628 85628 1998 KV2 from LINEAR (Oct. 11.44-47p4)
21277 21277 1996 TO5 from MLS (Oct. 11.11-13p4)
08176 8176 1991 WA from LINEAR (Oct. 11.42-47p5)
05786 5786 Talos (1991 RC) from CSS (Oct. 11.15-16p3)
04954 4954 Eric (1990 SQ) from Herrenberg Obs. (Oct. 11.80p7)
02212 2212 Hephaistos (1978 SB) from LINEAR (Oct. 11.26-35p10)
01221 1221 Amor (1932 EA1) from Spacewatch 0.9m (Oct. 11.12-13p2)

Observers on 12 October '07

A total of 37 observing facilities appear in today's MPECs.

Code	Observer / observatory
`B03`	Alter Satzberg Obs. in Austria, 2 in MPECs 2007-T80 & 2007-T87 -- 2007 TV24, 2007 TS19
`688`	Anderson Mesa Station in Arizona, 1 in MPEC 2007-T95 -- 2006 RC103
`H55`	Astronomical Research Obs. (ARO) in Illinois, 3 in MPECs 2007-T80 & 2007-T81 -- 2007 TY18, 2007 TY18, 2007 SH
`703`	Catalina Sky Survey (CSS) in Arizona, 10 in MPECs 2007-T80, 2007-T82, 2007-T83, 2007-T84, 2007-T86, 2007-T92, 2007-T96 & 2007-T97 -- 2007 TU24, 2007 TS24, 2007 TR65, 2007 TR24, 2007 TQ24, 2007 TK8, 2007 TB25, 2007 RT147, 162117, 5786
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2007-T80 -- 2002 RC118
`734`	Farpoint Obs. in Kansas, 5 in MPEC 2007-T80 -- 2007 TM15, 2007 TL16, 2007 TC14, 2007 TB14, 2006 XH2
`H87`	Fenwick Obs., 1 in MPEC 2007-T80 -- 2007 TG15
`B21`	Gaisberg Obs. in Austria, 1 in MPEC 2007-T87 -- 2007 TV24
`143`	Gnosca Obs. in Switzerland, 2 in MPECs 2007-T80 & 2007-T97 -- 2007 TR65, 2007 EK26
`651`	Grasslands Obs. in Arizona, 10 in MPECs 2007-T82, 2007-T83, 2007-T84, 2007-T86, 2007-T87, 2007-T88, 2007-T89, 2007-T90, 2007-T91 & 2007-T97 -- 2007 TY24, 2007 TX24, 2007 TW24, 2007 TV24, 2007 TU24, 2007 TS24, 2007 TR65, 2007 TR24, 2007 TQ24, 2007 TA25
`379`	Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2007-T80 -- 2007 RF5, 2007 PU11, 2007 LR32
`024`	Heidelberg-Konigstuhl Obs. in Germany, 2 in MPEC 2007-T80 -- 2007 TU18, 2007 TT18
`240`	Herrenberg Obs. in Germany, 1 in MPEC 2007-T80 -- 4954
`715`	Jornada Obs. in New Mexico, 2 in MPEC 2007-T80 -- 2007 TK5, 2006 CG
`701`	Junk Bond Obs. in Arizona, 2 in MPECs 2007-T80 & 2007-T81 -- 2007 TY18, 2007 TY18
`246`	KLENOT in the Czech Republic, 3 in MPEC 2007-T80 -- 2007 TU18, 2007 TT18, 2007 HV4
`046`	Klet Obs. in the Czech Republic, 2 in MPEC 2007-T80 -- 2007 TG8, 2007 TG15
`704`	LINEAR in New Mexico, 8 in MPECs 2007-T80, 2007-T87 & 2007-T96 -- 2007 TV24, 2007 TT18, 2007 TK8, 2007 GS3, 85628, 100756, 8176, 2212
`J87`	La Canada Obs. in Spain, 1 in MPEC 2007-T96 -- 2007 TK8
`304`	Las Campanas Obs. in Chile, 1 in MPEC 2007-T95 -- 2006 RC103
`D35`	Lulin Minor Bodies Tracking (LIMIT) in Taiwan, 2 in MPEC 2007-T80 -- 2007 MM13, 2005 BG14
`932`	McCarthy Obs. in Connecticut, 1 in MPEC 2007-T80 -- 2007 AS12
`118`	Modra Obs. in Slovakia, 1 in MPEC 2007-T87 -- 2007 TV24
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2007-T86 & 2007-T97 -- 2007 TU24, 2007 TR65
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2007-T80, 2007-T81, 2007-T82, 2007-T83, 2007-T84, 2007-T85, 2007-T86, 2007-T88, 2007-T89, 2007-T90, 2007-T91 & 2007-T92 -- 2007 TY24, 2007 TY18, 2007 TX24, 2007 TW24, 2007 TU24, 2007 TT24, 2007 TS24, 2007 TR24, 2007 TQ24, 2007 TK15, 2007 TH15, 2007 TB25, 2007 TA25, 2006 SC6, 2001 VK5, 21277
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPEC 2007-T80 -- 2007 TH1, 2007 TC14, 2007 RP133, 2007 PU11, 2007 KN4, 2002 RC118
`941`	Pla D'Arguines Obs. in Spain, 1 in MPEC 2007-T96 -- 2007 TK8
`649`	Powell Obs. in Kansas, 10 in MPECs 2007-T80, 2007-T82, 2007-T84, 2007-T86 & 2007-T89 -- 2007 TX24, 2007 TU24, 2007 TU18, 2007 TT18, 2007 TS24, 2007 TQ24, 2007 TL16, 2007 TJ19, 2007 TE15, 2007 TC14
`473`	Remanzacco Obs. in Italy, 3 in MPECs 2007-T80 & 2007-T97 -- 2007 TR65, 2007 EK26, 2007 CX50
`204`	Schiaparelli Obs. in Italy, 5 in MPECs 2007-T80, 2007-T82, 2007-T83, 2007-T86 & 2007-T87 -- 2007 TV24, 2007 TU24, 2007 TR24, 2007 TQ24, 2007 TL23
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2007-T80 -- 2007 OY
`2492`	LASCO Coronagraph 2 (SOHO C2) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 7 in MPECs 2007-T93 & 2007-T94 -- C/2007 L5, C/2007 L4, C/2007 L3, C/2007 L2, C/2007 L1, C/2007 K20, C/2007 K19
`2493`	LASCO Coronagraph 3 (SOHO C3) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 3 in MPEC 2007-T94 -- C/2007 L3, C/2007 L2, C/2007 L1
`691`	Spacewatch 0.9m telescope in Arizona, 6 in MPECs 2007-T80, 2007-T81 & 2007-T87 -- 2007 TY18, 2007 TV24, 2007 RZ19, 2007 RQ133, 2007 QK2, 1221
`291`	Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2007-T80 & 2007-T81 -- 2007 TY18, 2007 TL15, 2007 SR11, 1993 TQ2
`6735`	Jim Young via Table Mtn. Obs. in southern California, 6 in MPECs 2007-T80, 2007-T82, 2007-T83 & 2007-T86 -- 2007 TU24, 2007 TR24, 2007 TQ24, 2007 TK5, 2007 TJ19, 2007 MB24
`926`	Tenagra II Obs. in Arizona, 2 in MPECs 2007-T80 & 2007-T81 -- 2007 TY18, 2007 TX22
`B39`	Tradate Obs. in Italy, 1 in MPEC 2007-T80 -- 2007 LR32

Impact Risk Monitoring on 12 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 TY24	JPL	2002	2041-2106	13	8.7e-08	-7.36	-7.78	0	JPL: "Analysis based on 14 observations spanning .98938 days (2007-Oct-11.37522 to 2007-Oct-12.3646)." Diameter approximately 0.031 km. from mean, weighted H=25.2.

2007 TX22	NEODyS	1729	2044-2088	38	1.98e-05	-6.50	-7.13	0	NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/10/11.202 to 2007/10/11.336."
2007 TX22	JPL	1428	2040-2079	44	2.2e-05	-6.44	-7.09	0	JPL: "Analysis based on 22 observations spanning .13425 days (2007-Oct-11.20094 to 2007-Oct-11.33519)." Diameter approximately 0.007 km. from mean, weighted H=28.4.

2007 TU24	JPL	2034	2011-2107	351	3.4e-06	-3.08	-3.98	0	JPL: "Analysis based on 28 observations spanning 1.2262 days (2007-Oct-11.26838 to 2007-Oct-12.49456)." Diameter approximately 0.330 km. from mean, weighted H=20.1.

2007 TU18	JPL	1428	R E M O V E D						JPL: Risk listing removed at 1310 UTC.
2007 TU18	NEODyS	1428	R E M O V E D

2007 TM15	NEODyS	2354	R E M O V E D
2007 TM15	JPL	1804	R E M O V E D						JPL: Risk listing removed at 1732 UTC.

2007 TL23	NEODyS	1729	2014-2084	28	6.16e-09	-5.78	-6.01	0	NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2007/10/11.202 to 2007/10/11.914."
2007 TL23	JPL	1428	2013-2106	118	6.8e-08	-4.77	-5.43	0	JPL #2 for the day: "Analysis based on 25 observations spanning .71188 days (2007-Oct-11.20148 to 2007-Oct-11.91336)." Diameter approximately 0.189 km. from mean, weighted H=21.3.

2007 TL16	NEODyS	1429	2073-2090	18	4.71e-06	-6.16	-6.30	0	NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2007/10/09.288 to 2007/10/11.412."
2007 TL16	JPL	1428	2074-2095	13	5.1e-06	-6.04	-6.19	0	JPL: "Analysis based on 25 observations spanning 2.1234 days (2007-Oct-09.28741 to 2007-Oct-11.41083)." Diameter approximately 0.020 km. from mean, weighted H=26.1.

2007 TA25	JPL	1850	2104	1	4.6e-10	-6.85	-6.85	0	JPL: "Analysis based on 14 observations spanning 1.0573 days (2007-Oct-11.33329 to 2007-Oct-12.39054)." Diameter approximately 0.400 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 12 October '07

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

2354	Noted that NEODyS has removed 2007 TM15 as an impact risk - see above
2331	Grabbed MPEC 2007-T97 - 2007 TR65 - see above
2308	Grabbed MPEC 2007-T96 - 2007 TK8 - see above
2034	Noted that JPL has posted 2007 TU24 as an impact risk - see above Grabbed MPEC 2007-T95 - 2006 RC103 - see above
2002	Noted that JPL has posted 2007 TY24 as an impact risk - see above
1850	Noted that JPL has posted 2007 TA25 as an impact risk - see above
1804	Noted that JPL has removed 2007 TM15 as an impact risk - see above Grabbed MPEC 2007-T93 - Comets C/2007 K19, 2007 K20 (SOHO) - see above Grabbed MPEC 2007-T94 - Comets C/2007 L1, 2007 L2, 2007 L3, 2007 L4, 2007 L5 (SOHO) - see above
1728	Noted that NEODyS has posted 2007 TL23 as an impact risk - see above Noted that NEODyS has posted 2007 TX22 as an impact risk - see above Grabbed MPEC 2007-T91 - 2007 TA25 - see above Grabbed MPEC 2007-T92 - 2007 TB25 - see above
1559	Grabbed MPEC 2007-T84 - 2007 TS24 - see above Grabbed MPEC 2007-T85 - 2007 TT24 - see above Grabbed MPEC 2007-T86 - 2007 TU24 - see above Grabbed MPEC 2007-T87 - 2007 TV24 - see above Grabbed MPEC 2007-T88 - 2007 TW24 - see above Grabbed MPEC 2007-T89 - 2007 TX24 - see above Grabbed MPEC 2007-T90 - 2007 TY24 - see above
1429	Noted that NEODyS has updated its 2007 TL16 risk assessment - see above
1428	Noted that JPL has updated its 2007 TL16 risk assessment - see above Noted that JPL has updated its 2007 TL23 risk assessment - see above Noted that JPL has removed 2007 TU18 as an impact risk - see above Noted that NEODyS has removed 2007 TU18 as an impact risk - see above Noted that JPL has updated its 2007 TX22 risk assessment - see above Grabbed MPEC 2007-T80 - Daily Orbit Update - see above Grabbed MPEC 2007-T81 - 2007 TY18 = 1997 GF45 - see above Grabbed MPEC 2007-T82 - 2007 TQ24 - see above Grabbed MPEC 2007-T83 - 2007 TR24 - see above
0350	Noted that JPL has posted 2007 TL23 as an impact risk - see above

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