10 Oct '07 Tracking News

Contents on 10 October '07

IAU Minor Planet Center
- NEOCP Activity -- 18 listings: 10 new, 8 updated
- New MPECs -- fifteen MPECs
- Observers -- 32 observing facilities
Impact Risk Monitoring -- five 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 10 October '07

The MPC's NEO Confirmation Page has 18 listings: 10 new, 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had ten new and eight updated listings. Of these, sixteen were "one nighters." So far Tracking News has counted a total of 29 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 10 October '07

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been fifteen MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2007-T55 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2007-T56 time-stamped "16:53 UT" - Comets C/2007 J8, 2007 J9, 2007 J10, 2007 J11, 2007 J12 (SOHO) - see below
MPEC 2007-T57 time-stamped "16:58 UT" - Comets C/2007 K7, 2007 K8, 2007 K9 (SOHO) - see below
MPEC 2007-T58 time-stamped "19:14 UT" - 5025 P-L - see below
MPEC 2007-T59 time-stamped "19:49 UT" - Comet C/2007 T1 (McNaught) - see below
MPEC 2007-T60 time-stamped "19:59 UT" - 2007 TT18 - see below
MPEC 2007-T61 time-stamped "20:05 UT" - 2007 TU18 - see below
MPEC 2007-T62 time-stamped "20:09 UT" - 2007 TV18 - see below
MPEC 2007-T63 time-stamped "20:14 UT" - 2007 TX18 - see below
MPEC 2007-T64 time-stamped "20:17 UT" - 2007 TZ18 - see below
MPEC 2007-T65 time-stamped "20:22 UT" - 2007 TA19 - see below
MPEC 2007-T66 time-stamped "22:03 UT" - 2007 TH19 - see below
MPEC 2007-T67 time-stamped "22:11 UT" - 2007 TJ19 - see below
MPEC 2007-T68 time-stamped "22:34 UT" - 2007 TS19 - see below
MPEC 2007-T69 time-stamped "22:41 UT" - 1993 TQ2

MPEC 2007-T69 - "22:41 UT" - 1993 TQ2

J93T02Q 1993 TQ2 (H=20.0 ~339m) from the Mt. Lemmon Survey (MLS) (Sept. 8.46-48p4), the Spacewatch 0.9m telescope (Oct. 7.38-42p3), and the Spacewatch 1.8m telescope (Oct. 7.50p3 & 8.36-38p3)

MPEC 2007-T68 - "22:34 UT" - 2007 TS19

K07T19S 2007 TS19 (Earth MOID=9.8 LD, H=20.6 ~257m) was discovered at 0646 UT on 10 Oct. by the Catalina Sky Survey (CSS), which observed it at Oct. 10.28-42p12. The discovery was confirmed by Astronomical Research Obs. (ARO) (Oct. 10.31-34p6), KLENOT (Oct. 10.86p6), Heidelberg-Konigstuhl Obs. (Oct. 10.86p3), and Farra d'Isonzo Obs. (Oct. 10.90p3).

MPEC 2007-T67 - "22:11 UT" - 2007 TJ19

K07T19J 2007 TJ19 (i=41.2°, H=21.0 ~214m) was discovered at 0517 UT on 10 Oct. by LONEOS, which observed it at Oct. 10.22-29p4. The discovery was confirmed by Heidelberg-Konigstuhl Obs. (Oct. 10.76-77p3) and KLENOT (Oct. 10.83p6).

MPEC 2007-T66 - "22:03 UT" - 2007 TH19

K07T19H 2007 TH19 (Earth MOID=8.4 LD, H=17.3 ~1.17 km) was discovered at 1013 UT on 8 Oct. by the MLS, which observed it at Oct. 8.43-50p7, 9.41-42p3, and 10.42-43p4. The discovery was confirmed by ARO (Oct. 10.27-30p3).

MPEC 2007-T65 - "20:22 UT" - 2007 TA19

K07T19A 2007 TA19 (Earth MOID=7.5 LD, H=19.5 ~426m) was discovered at 1450 UT on 9 Oct. by the Siding Spring Survey (SSS), which observed it at Oct. 9.62-66p5, 9.74-78p3, 10.49-51p2, and 10.65p1. The discovery was confirmed by CEAMIG-REA (Oct. 10.19-21p3).

MPEC 2007-T64 - "20:17 UT" - 2007 TZ18

K07T18Z 2007 TZ18 (H=20.9 ~224m) was discovered at 1101 UT on 9 Oct. by the CSS, which observed it at Oct. 9.40-48p7. The discovery was confirmed by Modra Obs. (Oct. 10.05-06p5) and ARO (Oct. 10.33-34p3).

MPEC 2007-T63 - "20:14 UT" - 2007 TX18

K07T18X 2007 TX18 (H=16.9 ~1.41 km) was discovered at 0757 UT on 9 Oct. by the CSS, which observed it at Oct. 9.33-36p4 and 9.40-42p4. The discovery was confirmed by Jim Young via Table Mtn. Obs. (Oct. 9.46-48p4), Modra Obs. (Oct. 10.01-03p3), and ARO (Oct. 10.28-29p4).

MPEC 2007-T62 - "20:09 UT" - 2007 TV18

K07T18V 2007 TV18 (small asteroid, Earth MOID=0.5 LD, H=23.4 ~71m) was discovered at 0453 UT on 9 Oct. by the MLS, which observed it at Oct. 9.20-27p8 and 10.17-19p8.

MPEC 2007-T61 - "20:05 UT" - 2007 TU18

K07T18U 2007 TU18 (small asteroid, H=24.9 ~35m) was discovered at 0451 UT on 9 Oct. by LINEAR, which observed it at Oct. 9.20-25p5. The discovery was confirmed by MLS (Oct. 10.29-32p4).

MPEC 2007-T60 - "19:59 UT" - 2007 TT18

K07T18T 2007 TT18 (small asteroid, H=23.1 ~81m) was discovered at 0449 UT on 9 Oct. by LINEAR, which observed it at Oct. 9.20-25p4. The discovery was confirmed by Young/Table Mtn. (Oct. 10.14-16p4), CEAMIG-REA (Oct. 10.14-15p3), CSS (Oct. 10.24p4), and MLS (Oct. 10.28-29p6).

MPEC 2007-T59 - "19:49 UT" - Comet C/2007 T1 (McNaught)

CK07T010 C/2007 T1 (i=117.9°, q=0.979 AU, TP=2007 Dec. 12.392 TT) from CEAMIG-REA (Oct. 9.91-92p3), RAS Obs. Mayhill (Oct. 10.08-10p2), and San Marcello Pistoiese Obs. (Oct. 10.75-77p4)

MPEC 2007-T58 - "19:14 UT" - 5025 P-L

PLS5025 5025 P-L (Q=4.404 AU, H=15.7 ~2.45 km, q=0.641 AU) from Spacewatch 0.9m (1999 Sept. 3.29-33p3, Sept. 30.13-17p3 & Oct. 9.11-15p3), CSS (Sept. 10.25-27p4), MLS (Sept. 10.29-31p4 & Oct. 10.24-26p4), and Spacewatch 1.8m (Sept. 30.22-23p3 & Oct. 10.11-12p3)

MPEC 2007-T57 - "16:58 UT" - Comets C/2007 K7, 2007 K8, 2007 K9 (SOHO)

CK07K090 C/2007 K9 from the LASCO Coronagraph 2 on the Solar & Heliospheric Obs. (SOHO) (May 17.65-73p14)
CK07K080 C/2007 K8 from the LASCO Coronagraph 3 on the Solar & Heliospheric Obs. (SOHO) (May 17.20-39p18, 17.43-53p12 & 17.57-60p4) and SOHO C2 (May 17.59-75p24)
CK07K070 C/2007 K7 from SOHO C2 (May 16.85p2 & 16.90-98p12)

MPEC 2007-T56 - "16:53 UT" - Comets C/2007 J8, 2007 J9, 2007 J10, 2007 J11, 2007 J12 (SOHO)

CK07J120 C/2007 J12 from SOHO C3 (May 15.68-78p10 & 16.14p2) and SOHO C2 (May 16.40p2, 16.44-45p4 & 16.52-54p4)
CK07J110 C/2007 J11 from SOHO C3 (May 15.43-53p10, 15.57-78p20, 15.90p2, 15.97-03p8, 16.07-39p30 & 16.43-45p4) and SOHO C2 (May 16.40p2, 16.44-45p4 & 16.52-63p14)
CK07J100 C/2007 J10 from SOHO C2 (May 14.13-29p22)
CK07J090 C/2007 J9 from SOHO C3 (May 13.90-93p4, 13.97-03p8 & 14.07-22p16) and SOHO C2 (May 14.21-35p18)
CK07J080 C/2007 J8 from SOHO C2 (May 12.91-02p14)

<< DOU on 10 Oct. '07 >> MPEC 2007-T55 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K07T14C 2007 TC14 (almost small, arc=1 day, H=21.9 ~141m) from Heidelberg-Konigstuhl Obs. (Oct. 8.78-79p3), CEAMIG-REA (Oct. 9.13p3), and MLS (Oct. 9.35-36p4)
K07T14B 2007 TB14 (small asteroid, Q=4.174 AU, arc=1 day, H=24.3 ~47m) from LINEAR (Oct. 9.26-35p9)
Observations of recently (no longer) risk-listed objects
K07T01H 2007 TH1 (almost small, arc=5 days, H=22.0 ~135m) from Naef Obs. (Oct. 9.91-95p2)
K07T01G 2007 TG1 (small asteroid, arc=4 days, H=24.4 ~45m) from ARO (Oct. 8.09-11p3)
K07RD3Q 2007 RQ133 (Q=4.582 AU, arc=24 days, H=18.7 ~616m) from Desert Moon Obs. (Oct. 9.36-39p2)
Observations of small asteroids (H>22.0)
K07T15E 2007 TE15 (arc=1 day, H=25.5 ~27m) from Great Shefford Obs. (Oct. 8.87-88p2)
K07T03H 2007 TH3 (arc=3 days, H=24.7 ~39m) from Stia Obs. (Oct. 8.82-83p4) and Madonna di Dossobuono Obs. (Oct. 8.88-90p4)
K07T01D 2007 TD1 (arc=4 days, H=25.5 ~27m) from ARO (Oct. 8.31p3)
K07T00D 2007 TD (q=0.321 AU, arc=7 days, H=24.4 ~45m) from Spacewatch 1.8m (Oct. 9.13-15p3)
K07S11G 2007 SG11 (arc=15 days, H=22.6 ~102m) from Stia Obs. (Oct. 8.80-82p5) and LINEAR (Oct. 9.14-18p5)
K07S01V 2007 SV1 (arc=18 days, H=24.7 ~39m) from ARO (Oct. 8.08-10p3)
K07RD3N 2007 RN133 (arc=3 days, H=25.2 ~31m) from MLS (Sept. 15.47p4)
K07R17S 2007 RS17 (arc=25 days, H=22.9 ~89m) from ARO (Oct. 8.12-13p2 at V=22.4)
K07R17R 2007 RR17 (arc=26 days, H=23.6 ~65m) from Spacewatch 0.9m (Oct. 9.38-42p6)
K07R17Q 2007 RQ17 (arc=26 days, H=22.6 ~102m) from Spacewatch 0.9m (Oct. 5.10-13p3)
K00T01H 2000 TH1 (arc=2 opp, H=22.6 ~102m) from LINEAR (Oct. 9.25-29p9)
Observations of other objects
K07T15G 2007 TG15 (arc=1 day, H=19.8 ~371m) from Cordell-Lorenz Obs. (Oct. 9.17p1 & 9.24p1)
K07T08G 2007 TG8 (Q=4.310 AU, arc=26 days, H=18.8 ~589m) from San Marcello Pistoiese Obs. (Oct. 8.75-76p3), Eschenberg Obs. (Oct. 8.76-78p3), and Gnosca Obs. (Oct. 8.82-85p3)
K07S11V 2007 SV11 (arc=12 days, H=18.0 ~851m) from CSS (Oct. 8.10-12p4)
K07S11E 2007 SE11 (i=48.2°, arc=19 days, H=17.6 ~1.02 km) from Hibiscus Obs. (Oct. 9.58-59p2)
K07S06P 2007 SP6 (arc=18 days, H=18.0 ~851m) from Desert Moon Obs. (Oct. 9.51p3)
K07RE7T 2007 RT147 (arc=27 days, H=18.2 ~776m) from Desert Moon Obs. (Oct. 9.15-16p2)
K07RD3P 2007 RP133 (Q=4.021 AU, arc=24 days, H=20.7 ~245m) from Desert Moon Obs. (Oct. 9.28-31p3)
K07RD3L 2007 RL133 (arc=24 days, H=20.3 ~295m) from ARO (Oct. 8.29-30p3)
K07R20D 2007 RD20 (arc=25 days, H=20.9 ~224m) from Naef Obs. (Oct. 9.97-98p2)
K07R19T 2007 RT19 (arc=2 opp, H=18.2 ~776m) from CSS (Oct. 7.34-36p4)
K07R17U 2007 RU17 (q=0.355 AU, arc=25 days, H=18.3 ~741m) from LONEOS (Oct. 8.23-30p4)
K07R12U 2007 RU12 (arc=27 days, H=19.7 ~389m) from Desert Moon Obs. (Oct. 9.42-43p2)
K07R07N 2007 RN7 (arc=47 days, H=21.4 ~178m) from SSS (Oct. 9.61p2)
K07R05F 2007 RF5 (arc=33 days, H=18.4 ~708m) from CSS (Oct. 8.27-30p4)
K07R01D 2007 RD1 (arc=37 days, H=21.6 ~162m) from CSS (Oct. 9.28-32p4 & 9.37-39p3)
K07P27V 2007 PV27 (arc=56 days, H=20.2 ~309m) from Spacewatch 1.8m (Oct. 9.10-12p2)
K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from LINEAR (Oct. 9.26-30p5)
K07P08E 2007 PE8 (arc=146 days, H=19.4 ~446m) from CSS (Oct. 7.18-19p4)
K07O00Y 2007 OY (arc=83 days, H=20.8 ~234m) from Desert Moon Obs. (Oct. 9.23-25p2)
K07O00V 2007 OV (arc=85 days, H=19.2 ~490m) from LONEOS (Oct. 9.30-36p4)
K07M24C 2007 MC24 (arc=68 days, H=19.5 ~426m) from K. Sarneczky via Australian Natl. Univ. 1m telescope (Aug. 30.68-69p3)
K07L32R 2007 LR32 (arc=137 days, H=17.2 ~1.23 km) from Crni Vrh Obs. (Oct. 8.79-81p4) and CSS (Oct. 9.15-17p4)
K07G03S 2007 GS3 (arc=181 days, H=19.3 ~467m) from LINEAR (Oct. 9.38-41p4)
K07D41L 2007 DL41 (arc=2 opp, H=20.6 ~257m) from ARO (Oct. 8.39-43p6)
K07D41A 2007 DA41 (arc=3 opp, H=17.6 ~1.02 km) from Madonna di Dossobuono Obs. (Oct. 8.84-85p3)
K06S06F 2006 SF6 (arc=2 opp, H=20.0 ~339m) from LINEAR (Oct. 9.37-41p3)
K05X80L 2005 XL80 (arc=2 opp, H=18.1 ~812m) from Spacewatch 0.9m (Oct. 8.44-48p3)
K05S04S 2005 SS4 (q=0.363 AU, arc=3 opp, H=19.1 ~513m) from Spacewatch 0.9m (Oct. 9.21-25p3)
K05S00G 2005 SG (arc=4 opp, H=18.9 ~562m) from Spacewatch 0.9m (Oct. 8.43-46p3)
K04U00L 2004 UL (q=0.093 AU, arc=3 opp, H=18.8 ~589m) from Spacewatch 0.9m (Oct. 8.49-51p3) and MLS (Oct. 9.49-50p4)
K04T16Y 2004 TY16 (arc=4 opp, H=16.8 ~1.48 km) from ARO (Oct. 7.36p1)
K04RP2D 2004 RD252 (arc=2 opp, H=19.1 ~513m) from CSS (Oct. 9.15-17p4)
K03X00L 2003 XL (arc=4 opp, H=17.3 ~1.17 km) from ARO (Oct. 8.37-38p3)
K02X14R 2002 XR14 (arc=4 opp, H=18.1 ~812m) from ARO (Oct. 8.33-37p3 at V=22.2-4)
K02S00V 2002 SV (arc=2 opp, H=19.7 ~389m) from Fiamene Obs. (Oct. 8.80-81p6)
K01U16Y 2001 UY16 (arc=3 opp, H=19.1 ~513m) from SSS (Oct. 9.62-63p2)
K01R47Y 2001 RY47 (arc=3 opp, H=19.5 ~426m) from LONEOS (Oct. 8.24-30p4)
K01Q34C 2001 QC34 (arc=2 opp, H=20.0 ~339m) from Eschenberg Obs. (Oct. 9.80-81p2)
J99R33H 1999 RH33 (arc=5 opp, H=19.5 ~426m) from ARO (Oct. 8.40-42p3)
J98X09C 1998 XC9 (Q=4.212 AU, arc=3 opp, H=18.1 ~812m) from Desert Moon Obs. (Oct. 9.10-12p3)
J98Q28B 1998 QB28 (arc=2 opp, H=20.3 ~295m) from Spacewatch 1.8m (Oct. 9.15-17p3)
G3697 163697 2003 EF54 from LINEAR (Oct. 9.21-25p3)
G3051 163051 2001 YJ4 from Spacewatch 0.9m (Oct. 9.38-42p3)
G2913 162913 2001 MT18 from Spacewatch 0.9m (Oct. 5.09-12p3)
G2273 162273 1999 VL12 from CSS (Oct. 9.41-42p4)
G2173 162173 1999 JU3 from Santa Mama Obs. (Oct. 8.77-79p4)
G1998 161998 1988 PA from LONEOS (Oct. 8.32-39p4)
F4278 154278 2002 TB9 from LONEOS (Oct. 8.40-46p4)
F3271 153271 2001 CL42 from Naef Obs. (Oct. 9.92-94p2)
E3678 143678 2003 SA224 from CSS (Oct. 9.33-36p4)
E3651 143651 2003 QO104 from MLS (Oct. 9.45-47p4)
86324 86324 1999 WA2 from Santa Mama Obs. (Oct. 8.75-76p4)
85770 85770 1998 UP1 from CSS (Oct. 9.33-36p4)
68063 68063 2000 YJ66 from LINEAR (Oct. 9.42-47p5)
26166 26166 1995 QN3 from Spacewatch 0.9m (Oct. 9.09-13p3)
22771 22771 1999 CU3 from Naef Obs. (Oct. 9.90-94p3)
17182 17182 1999 VU from LONEOS (Oct. 9.28-35p4)
16657 16657 1993 UB from MLS (Oct. 9.47-49p4)
16636 16636 1993 QP from Ametlla del Valles Obs. (Oct. 8.95-97p4)
12711 12711 1991 BB from CSS (Oct. 9.49-50p4)
11500 11500 1989 UR from Celbridge Obs. (Oct. 9.93p1)
08566 8566 1996 EN from SSS (Oct. 9.42-43p3)
05143 5143 Heracles (1991 VL) from LINEAR (Oct. 9.14-19p5)
04953 4953 1990 MU from SSS (Oct. 9.54-56p4)
04183 4183 Cuno (1959 LM) from LINEAR (Oct. 9.14-19p5)
02212 2212 Hephaistos (1978 SB) from Spacewatch 0.9m (Oct. 8.26-29p3) and LINEAR (Oct. 9.31-35p5)
01862 1862 Apollo (1932 HA) from LINEAR (Oct. 9.43-47p4)
01580 1580 Betulia (1950 KA) from LINEAR (Oct. 9.37-41p4)

Observers on 10 October '07

A total of 32 observing facilities appear in today's MPECs.

Code	Observer / observatory
`B37`	Ametlla del Valles Obs. in Spain, 1 in MPEC 2007-T55 -- 16636
`H55`	Astronomical Research Obs. (ARO) in Illinois, 14 in MPECs 2007-T55, 2007-T63, 2007-T64, 2007-T66 & 2007-T68 -- 2007 TZ18, 2007 TX18, 2007 TS19, 2007 TH19, 2007 TG1, 2007 TD1, 2007 SV1, 2007 RS17, 2007 RL133, 2007 DL41, 2004 TY16, 2003 XL, 2002 XR14, 1999 RH33
`413(`	K. Sarneczky via Australian Natl. Univ. 1m telescope in New South Wales, 1 in MPEC 2007-T55 -- 2007 MC24
`I77`	CEAMIG-REA in Brazil, 4 in MPECs 2007-T55, 2007-T59, 2007-T60 & 2007-T65 -- 2007 TT18, 2007 TC14, 2007 TA19, C/2007 T1
`703`	Catalina Sky Survey (CSS) in Arizona, 16 in MPECs 2007-T55, 2007-T58, 2007-T60, 2007-T63, 2007-T64 & 2007-T68 -- 5025 P-L, 2007 TZ18, 2007 TX18, 2007 TT18, 2007 TS19, 2007 SV11, 2007 RT19, 2007 RF5, 2007 RD1, 2007 PE8, 2007 LR32, 2004 RD252, 85770, 162273, 143678, 12711
`J65`	Celbridge Obs. in Ireland, 1 in MPEC 2007-T55 -- 11500
`850`	Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2007-T55 -- 2007 TG15
`106`	Crni Vrh Obs. in Slovenia, 1 in MPEC 2007-T55 -- 2007 LR32
`448`	Desert Moon Obs. in New Mexico, 7 in MPEC 2007-T55 -- 2007 SP6, 2007 RU12, 2007 RT147, 2007 RQ133, 2007 RP133, 2007 OY, 1998 XC9
`151`	Eschenberg Obs. in Switzerland, 2 in MPEC 2007-T55 -- 2007 TG8, 2001 QC34
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2007-T68 -- 2007 TS19
`B23`	Fiamene Obs. in Italy, 1 in MPEC 2007-T55 -- 2002 SV
`143`	Gnosca Obs. in Switzerland, 1 in MPEC 2007-T55 -- 2007 TG8
`J95`	Great Shefford Obs. in England, 1 in MPEC 2007-T55 -- 2007 TE15
`024`	Heidelberg-Konigstuhl Obs. in Germany, 3 in MPECs 2007-T55, 2007-T67 & 2007-T68 -- 2007 TS19, 2007 TJ19, 2007 TC14
`F84`	Hibiscus Obs. in Tahiti, 1 in MPEC 2007-T55 -- 2007 SE11
`246`	KLENOT in the Czech Republic, 2 in MPECs 2007-T67 & 2007-T68 -- 2007 TS19, 2007 TJ19
`704`	LINEAR in New Mexico, 15 in MPECs 2007-T55, 2007-T60 & 2007-T61 -- 2007 TU18, 2007 TT18, 2007 TB14, 2007 SG11, 2007 PU11, 2007 GS3, 2006 SF6, 2000 TH1, 68063, 163697, 5143, 4183, 2212, 1862, 1580
`699`	LONEOS in Arizona, 7 in MPECs 2007-T55 & 2007-T67 -- 2007 TJ19, 2007 RU17, 2007 OV, 2001 RY47, 17182, 161998, 154278
`560`	Madonna di Dossobuono Obs. in Italy, 2 in MPEC 2007-T55 -- 2007 TH3, 2007 DA41
`118`	Modra Obs. in Slovakia, 2 in MPECs 2007-T63 & 2007-T64 -- 2007 TZ18, 2007 TX18
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 11 in MPECs 2007-T55, 2007-T58, 2007-T60, 2007-T61, 2007-T62, 2007-T66 & 2007-T69 -- 5025 P-L, 2007 TV18, 2007 TU18, 2007 TT18, 2007 TH19, 2007 TC14, 2007 RN133, 2004 UL, 1993 TQ2, 16657, 143651
`A13`	Naef Obs. in Switzerland, 4 in MPEC 2007-T55 -- 2007 TH1, 2007 RD20, 22771, 153271
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-T59 -- C/2007 T1
`104`	San Marcello Pistoiese Obs. in Italy, 2 in MPECs 2007-T55 & 2007-T59 -- 2007 TG8, C/2007 T1
`B38`	Santa Mama Obs. in Italy, 2 in MPEC 2007-T55 -- 86324, 162173
`E12`	Siding Spring Survey (SSS) in New South Wales, 5 in MPECs 2007-T55 & 2007-T65 -- 2007 TA19, 2007 RN7, 2001 UY16, 8566, 4953
`2492`	LASCO Coronagraph 2 (SOHO C2) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 8 in MPECs 2007-T56 & 2007-T57 -- C/2007 K9, C/2007 K8, C/2007 K7, C/2007 J9, C/2007 J8, C/2007 J12, C/2007 J11, C/2007 J10
`2493`	LASCO Coronagraph 3 (SOHO C3) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 4 in MPECs 2007-T56 & 2007-T57 -- C/2007 K8, C/2007 J9, C/2007 J12, C/2007 J11
`691`	Spacewatch 0.9m telescope in Arizona, 12 in MPECs 2007-T55, 2007-T58 & 2007-T69 -- 5025 P-L, 2007 RR17, 2007 RQ17, 2005 XL80, 2005 SS4, 2005 SG, 2004 UL, 1993 TQ2, 26166, 163051, 162913, 2212
`291`	Spacewatch 1.8m telescope in Arizona, 5 in MPECs 2007-T55, 2007-T58 & 2007-T69 -- 5025 P-L, 2007 TD, 2007 PV27, 1998 QB28, 1993 TQ2
`A78`	Stia Obs. in Italy, 2 in MPEC 2007-T55 -- 2007 TH3, 2007 SG11
`6735`	Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2007-T60 & 2007-T63 -- 2007 TX18, 2007 TT18

Impact Risk Monitoring on 10 October '07

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2350 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 TM15	NEODyS	1331	2011-2089	87	1.35e-08	-5.27	-5.68	0	NEODyS: "Based on 16 optical observations (of which 0 are rejected as outliers) from 2007/10/08.480 to 2007/10/09.421."

2007 TL16	NEODyS	1710	2056-2090	98	5.68e-05	-4.90	-5.41	0	NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2007/10/09.288 to 2007/10/09.787."
2007 TL16	JPL	0056	2056-2105	80	5.8e-05	-4.89	-5.36	0	JPL: "Analysis based on 15 observations spanning .49848 days (2007-Oct-09.28741 to 2007-Oct-09.78589)." Diameter approximately 0.021 km. from mean, weighted H=26.1.

2007 TL15	NEODyS	1710	2015-2089	20	3.67e-08	-6.16	-6.50	0	NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2007/10/08.386 to 2007/10/09.345."
2007 TL15	JPL	0136	2015-2106	37	7.0e-08	-5.90	-6.43	0	JPL: "Analysis based on 12 observations spanning .95919 days (2007-Oct-08.38507 to 2007-Oct-09.34426)." Diameter approximately 0.063 km. from mean, weighted H=23.6.

2007 TC14	NEODyS	1406	2064-2082	2	1.1e-08	-6.23	-6.28	0	NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2007/10/08.391 to 2007/10/09.359."
2007 TC14	JPL	1330	2064-2106	7	8.4e-08	-5.41	-5.55	0	JPL: "Analysis based on 29 observations spanning .96752 days (2007-Oct-08.39044 to 2007-Oct-09.35796)." Diameter approximately 0.140 km. from mean, weighted H=21.9.

2007 TB14	NEODyS	1406	2084	1	5.27e-10	-9.02	-9.02	0	NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/10/08.337 to 2007/10/09.351."
2007 TB14	JPL	1330	2084-2093	2	2.1e-08	-7.46	-7.48	0	JPL: "Analysis based on 22 observations spanning 1.0139 days (2007-Oct-08.33582 to 2007-Oct-09.34976)." Diameter approximately 0.049 km. from mean, weighted H=24.2.

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 10 October '07

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

2340	Grabbed MPEC 2007-T67 - 2007 TJ19 - see above Grabbed MPEC 2007-T68 - 2007 TS19 - see above Grabbed MPEC 2007-T69 - 1993 TQ2 - see above
2212	Grabbed MPEC 2007-T66 - 2007 TH19 - see above
2106	Grabbed MPEC 2007-T60 - 2007 TT18 - see above Grabbed MPEC 2007-T61 - 2007 TU18 - see above Grabbed MPEC 2007-T62 - 2007 TV18 - see above Grabbed MPEC 2007-T63 - 2007 TX18 - see above Grabbed MPEC 2007-T64 - 2007 TZ18 - see above Grabbed MPEC 2007-T65 - 2007 TA19 - see above
1959	Grabbed MPEC 2007-T58 - 5025 P-L - see above Grabbed MPEC 2007-T59 - Comet C/2007 T1 (McNaught) - see above
1709	Noted that NEODyS has posted 2007 TL15 as an impact risk - see above Noted that NEODyS has posted 2007 TL16 as an impact risk - see above Grabbed MPEC 2007-T56 - Comets C/2007 J8, 2007 J9, 2007 J10, 2007 J11, 2007 J12 (SOHO) - see above Grabbed MPEC 2007-T57 - Comets C/2007 K7, 2007 K8, 2007 K9 (SOHO) - see above
1406	Noted that NEODyS has updated its 2007 TB14 risk assessment - see above Noted that NEODyS has updated its 2007 TC14 risk assessment - see above
1331	Grabbed MPEC 2007-T55 - Daily Orbit Update - see above
1330	Noted that JPL has updated its 2007 TB14 risk assessment - see above Noted that JPL has updated its 2007 TC14 risk assessment - see above Noted that NEODyS has posted 2007 TM15 as an impact risk - see above
0136	Noted that JPL has posted 2007 TL15 as an impact risk - see above
0056	Noted that JPL has posted 2007 TL16 as an impact risk - see above

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