15 Oct '07 Tracking News

Recovery of 1937 UB Hermes on 15 Oct. 2003. Credit: LONEOS.

On this day four years ago, Brian Skiff was on duty with the LONEOS 0.59-meter telescope when he captured 1937 UB Hermes, the long lost and only named unnumbered asteroid (now numbered 69230), shown traveling left to right. See Lowell Observatory's news release and a collection of A/CC reports about follow-on discoveries and news reports. Credit: LONEOS (image composited and rebalanced by A/CC).

Contents on 15 October '07

IAU Minor Planet Center
- NEOCP Activity -- eleven listings: 3 new, 8 updated
- New MPECs -- 20 MPECs
- Observers -- 32 observing facilities
Impact Risk Monitoring -- eleven 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 15 October '07

The MPC's NEO Confirmation Page has 11 listings: 3 new, 8 updated

When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and eight updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of 40 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 15 October '07

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been 20 MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2007-T104 time-stamped "05:13 UT" - 2007 TR68 - see below
MPEC 2007-T105 time-stamped "05:18 UT" - 2007 TS68 - see below
MPEC 2007-T106 time-stamped "05:30 UT" - 2007 TU68 - see below
MPEC 2007-T107 time-stamped "05:33 UT" - 2007 TV68 - see below
MPEC 2007-T108 time-stamped "05:36 UT" - 2007 TW68 - see below
MPEC 2007-T109 time-stamped "05:39 UT" - 2007 TX68 - see below
MPEC 2007-T110 time-stamped "05:43 UT" - 2007 TY68 - see below
MPEC 2007-T111 time-stamped "05:52 UT" - 2007 TZ68 - see below
MPEC 2007-T112 time-stamped "06:10 UT" - Daily Orbit Update - see below
MPEC 2007-T113 time-stamped "15:29 UT" - Comet C/2007 T4 (Gibbs) - see below
MPEC 2007-T114 time-stamped "15:40 UT" - Comet C/2007 T5 (Gibbs) - see below
MPEC 2007-T115 time-stamped "16:43 UT" - Comet C/2007 T6 (Catalina) - see below
MPEC 2007-T116 time-stamped "18:18 UT" - 2002 TA60 - see below
MPEC 2007-T117 time-stamped "18:41 UT" - Comets C/2007 L6, 2007 L7, 2007 L8, 2007 L9 (SOHO) - see below
MPEC 2007-T118 time-stamped "18:47 UT" - 2007 TD71 - see below
MPEC 2007-T119 time-stamped "18:52 UT" - 2007 TE71 - see below
MPEC 2007-T120 time-stamped "18:56 UT" - 2007 TG71 - see below
MPEC 2007-T121 time-stamped "19:42 UT" - 2007 TH71 - see below
MPEC 2007-T122 time-stamped "21:28 UT" - Comets C/2007 L10, 2007 L11, 2007 L12, 2007 L13 (SOHO) - see below
MPEC 2007-T123 time-stamped "22:40 UT" - 2007 KJ

MPEC 2007-T123 - "22:40 UT" - 2007 KJ

K07K00J 2007 KJ (H=18.8 ~589m) from NEAT's GEODSS Haleakala telescope (1996 June 17.51-55p3 & 1996 June 21.60-62p3) and Mt. John Obs. (Oct. 14.36-37p4)

MPEC 2007-T122 - "21:28 UT" - Comets C/2007 L10, 2007 L11, 2007 L12, 2007 L13 (SOHO)

CK07L130 C/2007 L13 from the LASCO Coronagraph 3 on the Solar & Heliospheric Obs. (SOHO) (June 15.14-61p44, 15.66-78p14 & 15.82-85p4) and the LASCO Coronagraph 2 on the Solar & Heliospheric Obs. (SOHO) (June 15.81-08p34)
CK07L120 C/2007 L12 from SOHO C2 (June 14.85p2 & 14.90-94p8)
CK07L110 C/2007 L11 from SOHO C3 (June 14.82-93p10, 14.97-03p8 & 15.07-40p32) and SOHO C2 (June 15.27-54p38)
CK07L100 C/2007 L10 from SOHO C3 (June 13.32-39p8, 13.43-57p14, 13.64-65p4 & 13.70-76p8) and SOHO C2 (June 13.73-96p30)

MPEC 2007-T121 - "19:42 UT" - 2007 TH71

K07T71H 2007 TH71 (small asteroid, Earth MOID=4.2 LD, H=26.1 ~20m) was discovered at 0439 UT on 13 Oct. by LINEAR, which observed it at Oct. 13.19-23p4 and 14.20-24p4.

MPEC 2007-T120 - "18:56 UT" - 2007 TG71

K07T71G 2007 TG71 (small asteroid, H=26.4 ~18m) was discovered at 0645 UT on 14 Oct. by the Mt. Lemmon Survey (MLS), which observed it at Oct. 14.28-31p4 and 15.23-25p4 at V=22.3. The discovery was confirmed by the Spacewatch 1.8m telescope (Oct. 15.23-24p2).

MPEC 2007-T119 - "18:52 UT" - 2007 TE71

K07T71E 2007 TE71 (small asteroid, H=24.2 ~49m) was discovered at 0518 UT on 14 Oct. by the MLS, which observed it at Oct. 14.22-28p8 and 15.26-27p4. The discovery was confirmed by Spacewatch 1.8m (Oct. 15.24-25p3).

MPEC 2007-T118 - "18:47 UT" - 2007 TD71

K07T71D 2007 TD71 (risk-listed, i=49.4°, H=18.4 ~708m) was discovered at 1650 UT on 13 Oct. by the Siding Spring Survey (SSS), which observed it at Oct. 13.70-72p4, 13.77p1, 14.56-57p2, and 15.63p1. The discovery was confirmed by Mt. John Obs. (Oct. 14.52-53p4).

MPEC 2007-T117 - "18:41 UT" - Comets C/2007 L6, 2007 L7, 2007 L8, 2007 L9 (SOHO)

CK07L090 C/2007 L9 from SOHO C2 (June 10.00-29p42)
CK07L080 C/2007 L8 from SOHO C2 (June 10.69-85p24 & 10.90-00p14)
CK07L070 C/2007 L7 from SOHO C2 (June 10.66-81p22)
CK07L060 C/2007 L6 from SOHO C2 (June 10.62-85p32)

MPEC 2007-T116 - "18:18 UT" - 2002 TA60

K02T60A 2002 TA60 (H=20.7 ~245m) from Bergen-Enkheim Obs. (Oct. 13.79-90p7 & 14.79-83p6)

MPEC 2007-T115 - "16:43 UT" - Comet C/2007 T6 (Catalina)

CK07T060 C/2007 T6 (i=21.5°, q=2.383 AU, TP=2007 Aug. 24.944 TT) from the Catalina Sky Survey (CSS) (Oct. 13.47-52p6), RAS Obs. Mayhill (Oct. 14.38-42p3), MLS (Oct. 14.45-47p4), and Table Mtn. Obs. (Oct. 14.51-53p4 & 15.51-52p2)

MPEC 2007-T114 - "15:40 UT" - Comet C/2007 T5 (Gibbs)

CK07T050 C/2007 T5 (i=44.1°, q=4.408 AU, TP=2008 Feb. 13.463 TT) from CSS (Oct. 13.46-52p5), MLS (Oct. 14.45-47p4 & 15.46-50p8), and Table Mtn. Obs. (Oct. 15.47-51p4)

MPEC 2007-T113 - "15:29 UT" - Comet C/2007 T4 (Gibbs)

CK07T040 C/2007 T4 (i=24.0°, q=2.195 AU, TP=2007 Aug. 11.396 TT) from CSS (Oct. 12.46-52p12 & 13.49-51p8), Inastars Obs. (Oct. 14.14-15p3), MLS (Oct. 14.48-51p4 & 15.47-48p4), and Table Mtn. Obs. (Oct. 14.54p2 & 15.52-53p4)

<< DOU on 15 Oct. '07 >> MPEC 2007-T112 - "06:10 UT" - Daily Orbit Update

Observations of risk-listed objects
K07T66E 2007 TE66 (arc=3 days, H=21.2 ~195m) from KLENOT (Oct. 15.03-04p4)
K07T66C 2007 TC66 (arc=2 days, H=19.2 ~490m) from Mt. John Obs. (Oct. 14.50p3)
K07T24Y 2007 TY24 (small asteroid, arc=3 days, H=25.4 ~28m) from Spacewatch 1.8m (Oct. 14.21-22p3)
K07T24U 2007 TU24 (arc=4 days, H=20.1 ~323m) from MLS (Oct. 14.25-27p4) and KLENOT (Oct. 14.95-96p5)
K07T23C 2007 TC23 (Q=4.880 AU, arc=4 days, H=20.6 ~257m) from Spacewatch 1.8m (Oct. 14.38p3) and Desert Moon Obs. (Oct. 14.46-50p3)
K07T18X 2007 TX18 (arc=5 days, H=17.2 ~1.23 km) from MLS (Oct. 14.34-37p4) and Petit Jean Mtn. South Obs. (PJMSO) (Oct. 14.38-40p7)
K07T18V 2007 TV18 (small asteroid, arc=5 days, H=23.4 ~71m) from Astronomical Research Obs. (ARO) (Oct. 13.04-05p3) and MLS (Oct. 14.19-22p4)
K07T16L 2007 TL16 (small asteroid, arc=5 days, H=26.3 ~19m) from MLS (Oct. 14.25-27p4)
K07T14C 2007 TC14 (small asteroid, arc=6 days, H=22.2 ~123m) from Dresden Obs. (Oct. 13.88-90p4), PJMSO (Oct. 14.30-31p5), and Gelenau Obs. (Oct. 14.83-85p4)
Observations of recently (no longer) risk-listed objects
K07T23L 2007 TL23 (q=0.299 AU, arc=3 days, H=21.4 ~178m) from MLS (Oct. 14.25-26p4)
K07T18U 2007 TU18 (small asteroid, arc=5 days, H=25.0 ~34m) from LINEAR (Oct. 14.25-30p5)
K07S06Q 2007 SQ6 (almost small, arc=21 days, H=21.9 ~141m) from LINEAR (Oct. 13.09-13p5)
Observations of small asteroids (H>22.0)
K07T24S 2007 TS24 (Q=4.623 AU, arc=3 days, H=24.6 ~41m) from LINEAR (Oct. 13.26-29p4 & 14.25-30p13)
K07T18T 2007 TT18 (arc=3 days, H=23.1 ~81m) from Schiaparelli Obs. (Oct. 10.85p2)
K07R17Q 2007 RQ17 (arc=34 days, H=22.6 ~102m) from ARO (Oct. 13.07-08p3)
K07R01E 2007 RE1 (Q=4.271 AU, arc=42 days, H=22.1 ~129m) from MLS (Oct. 14.45-47p4)
Observations of almost-small asteroids (21.7<H<=22.0)
K07T66D 2007 TD66 (arc=2 days, H=21.8 ~148m) from LINEAR (Oct. 14.26-30p4)
K07T24Q 2007 TQ24 (q=0.364 AU, arc=3 days, H=22.0 ~135m) from MLS (Oct. 14.25-27p4)
Observations of other objects
K07T65R 2007 TR65 (i=43.6°, arc=2 days, H=19.0 ~537m) from Mt. John Obs. (Oct. 14.45p3)
K07T24V 2007 TV24 (arc=3 days, H=17.8 ~933m) from LINEAR (Oct. 13.36-40p5 & 14.32-36p4)
K07T19S 2007 TS19 (arc=4 days, H=20.7 ~245m) from LINEAR (Oct. 13.26-30p5) and MLS (Oct. 14.25-27p4)
K07T19J 2007 TJ19 (i=40.6°, arc=5 days, H=21.1 ~204m) from Madonna di Dossobuono Obs. (Oct. 14.88-89p3)
K07T19A 2007 TA19 (arc=5 days, H=19.6 ~407m) from SSS (Oct. 14.39p1 & 14.74p1)
K07T15G 2007 TG15 (arc=6 days, H=19.9 ~355m) from CSS (Oct. 14.33-36p4)
K07T08G 2007 TG8 (Q=4.306 AU, arc=31 days, H=18.9 ~562m) from PJMSO (Oct. 14.27-28p6)
K07S11E 2007 SE11 (i=48.2°, arc=24 days, H=17.7 ~977m) from CSS (Oct. 14.47-49p4)
K07RE7T 2007 RT147 (arc=32 days, H=18.2 ~776m) from Desert Moon Obs. (Oct. 14.12-14p3)
K07RD3M 2007 RM133 (arc=30 days, H=18.3 ~741m) from Desert Moon Obs. (Oct. 14.30-34p3)
K07R20D 2007 RD20 (arc=30 days, H=20.9 ~224m) from LINEAR (Oct. 14.33-36p4)
K07R17V 2007 RV17 (arc=32 days, H=19.0 ~537m) from SSS (Oct. 14.70-73p4)
K07R17U 2007 RU17 (q=0.356 AU, arc=30 days, H=18.3 ~741m) from LINEAR (Oct. 13.19-24p5)
K07R12U 2007 RU12 (arc=32 days, H=19.8 ~371m) from Desert Moon Obs. (Oct. 14.36-38p3)
K07R05F 2007 RF5 (arc=39 days, H=18.4 ~708m) from Dresden Obs. (Oct. 13.86-87p4) and PJMSO (Oct. 14.33p5)
K07R01D 2007 RD1 (arc=42 days, H=21.6 ~162m) from PJMSO (Oct. 14.29p5)
K07Q02K 2007 QK2 (arc=54 days, H=20.6 ~257m) from Desert Moon Obs. (Oct. 14.08-09p3) and LINEAR (Oct. 14.15-18p4)
K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from PJMSO (Oct. 14.34-35p6)
K07P08A 2007 PA8 (Q=4.701 AU, arc=67 days, H=15.9 ~2.24 km, q=0.958 AU) from KLENOT (Oct. 14.74p4)
K07O00V 2007 OV (arc=90 days, H=19.2 ~490m) from PJMSO (Oct. 14.25-26p6)
K07M06L 2007 ML6 (arc=115 days, H=18.6 ~645m) from CSS (Oct. 14.36-38p4)
K07L32R 2007 LR32 (arc=142 days, H=17.2 ~1.23 km) from Drebach Obs. (Oct. 7.79-80p4 & 14.74-75p4), PJMSO (Oct. 14.23-24p6), and Gelenau Obs. (Oct. 14.80-82p5)
K07K04N 2007 KN4 (Q=5.446 AU, arc=3 opp, H=16.9 ~1.41 km) from PJMSO (Oct. 14.32p6)
K07K00J 2007 KJ (arc=151 days, H=18.8 ~589m) from Mt. John Obs. (Oct. 14.36-37p4)
K07H15E 2007 HE15 (arc=175 days, H=19.7 ~389m) from MLS (Oct. 14.22-23p3)
K07G05W 2007 GW5 (arc=183 days, H=21.5 ~170m) from Desert Moon Obs. (Oct. 14.20-26p3)
K07G03S 2007 GS3 (arc=2 opp, H=19.3 ~467m) from LINEAR (Oct. 14.37-40p4)
K07D41A 2007 DA41 (arc=3 opp, H=17.6 ~1.02 km) from Madonna di Dossobuono Obs. (Oct. 14.82p3)
K05S00G 2005 SG (arc=4 opp, H=19.0 ~537m) from Drebach Obs. (Oct. 14.97-98p3)
K05N07B 2005 NB7 (arc=3 opp, H=18.6 ~645m) from Spacewatch 1.8m (Oct. 14.39-41p3)
K04V60T 2004 VT60 (i=43.5°, arc=3 opp, H=17.5 ~1.07 km) from CSS (Oct. 14.42-44p4)
K04T13R 2004 TR13 (arc=3 opp, H=18.5 ~676m) from LINEAR (Oct. 13.30-35p8) and PJMSO (Oct. 14.36-38p5)
K03A01D 2003 AD1 (arc=3 opp, H=18.2 ~776m) from Spacewatch 1.8m (Oct. 14.44-45p3)
K02U31A 2002 UA31 (arc=4 opp, H=19.0 ~537m) from Drebach Obs. (Oct. 14.75-76p4)
K02U03R 2002 UR3 (i=48.6°, q=0.285 AU, arc=5 opp, H=16.5 ~1.70 km) from LINEAR (Oct. 14.37-42p4)
K02RB8C 2002 RC118 (Q=4.624 AU, arc=2 opp, H=16.7 ~1.55 km) from PJMSO (Oct. 14.35-36p6) and Drebach Obs. (Oct. 14.98p4)
K01SR0A 2001 SA270 (i=38.5°, q=0.345 AU, arc=4 opp, H=18.1 ~812m) from Drebach Obs. (Oct. 14.76p3)
K01R47Y 2001 RY47 (arc=3 opp, H=19.5 ~426m) from LINEAR (Oct. 13.19-24p5), Dresden Obs. (Oct. 13.83-84p4), CSS (Oct. 14.16-18p4), and Madonna di Dossobuono Obs. (Oct. 14.83p3)
K00Q07T 2000 QT7 (arc=2 opp, H=20.0 ~339m) from Inastars Obs. (Oct. 14.87-88p3)
G2173 162173 1999 JU3 from Inastars Obs. (Oct. 14.84-85p3)
F3271 153271 2001 CL42 from Begues Obs. (Oct. 14.08p3)
E5656 145656 4788 P-L from LINEAR (Oct. 14.09-13p3)
87311 87311 2000 QJ1 from LINEAR (Oct. 13.42-47p5)
85770 85770 1998 UP1 from Drebach Obs. (Oct. 14.00p5)
85628 85628 1998 KV2 from LINEAR (Oct. 14.43-47p4)
16636 16636 1993 QP from Isle of Man Obs. (Oct. 13.97-99p3)
08034 8034 Akka (1992 LR) from LINEAR (Oct. 14.33-36p4)
04954 4954 Eric (1990 SQ) from LINEAR (Oct. 13.14-19p5)
04503 4503 Cleobulus (1989 WM) from LINEAR (Oct. 14.44-48p4)
02212 2212 Hephaistos (1978 SB) from LINEAR (Oct. 14.26-30p5)
01865 1865 Cerberus (1971 UA) from LINEAR (Oct. 13.36-41p5)

MPEC 2007-T111 - "05:52 UT" - 2007 TZ68

K07T68Z 2007 TZ68 (small asteroid, Earth MOID=3.2 LD, H=28.3 ~7m) was discovered at 0803 UT on 13 Oct. by the MLS, which observed it at Oct. 13.34-37p8 and 14.28p4. The discovery was confirmed by KLENOT (Oct. 14.98p2).

MPEC 2007-T110 - "05:43 UT" - 2007 TY68

K07T68Y 2007 TY68 (i=67.3°, q=1.564 AU, H=17.4 ~1.12 km) was discovered at 0742 UT on 13 Oct. by LINEAR, which observed it at Oct. 13.32-35p4. The discovery was confirmed by Jim Young via Table Mtn. Obs. (Oct. 14.27-29p4), KLENOT (Oct. 15.05p3), and Modra Obs. (Oct. 15.06p2).

MPEC 2007-T109 - "05:39 UT" - 2007 TX68

K07T68X 2007 TX68 (small asteroid, Earth MOID=4.5 LD, H=26.8 ~15m) was discovered at 0626 UT on 13 Oct. by the MLS, which observed it at Oct. 13.27-29p4, 13.34-37p8, and 14.25-27p4. The discovery was confirmed by Gaisberg Obs. (Oct. 13.89-90p3), McCarthy Obs. (Oct. 14.17-18p3), Young/Table Mtn. (Oct. 14.19-21p4), KLENOT (Oct. 14.97p5), and Grasslands Obs. (Oct. 15.15-16p4).

MPEC 2007-T108 - "05:36 UT" - 2007 TW68

K07T68W 2007 TW68 (H=18.9 ~562m) was discovered at 0622 UT on 13 Oct. by the Spacewatch 0.9m telescope, which observed it at Oct. 13.27-30p3. The discovery was confirmed by Heidelberg-Konigstuhl Obs. (Oct. 13.84-87p3), Gaisberg Obs. (Oct. 13.98-00p3), Spacewatch 1.8m (Oct. 14.22-23p3), Young/Table Mtn. (Oct. 14.23-26p4), MLS (Oct. 14.34-37p4), Junk Bond Obs. (Oct. 14.34-40p4), and KLENOT (Oct. 14.99p5).

MPEC 2007-T107 - "05:33 UT" - 2007 TV68

K07T68V 2007 TV68 (small asteroid, Q=4.049 AU, H=22.8 ~93m) was discovered at 0602 UT on 13 Oct. by LINEAR, which observed it at Oct. 13.25-30p5 and 14.31-35p4. The discovery was confirmed by Young/Table Mtn. (Oct. 14.39-41p4), Guidestar Obs. (Oct. 14.86-89p3), Drebach Obs. (Oct. 14.89-90p5), and KLENOT (Oct. 15.00p5).

MPEC 2007-T106 - "05:30 UT" - 2007 TU68

K07T68U 2007 TU68 (risk-listed, Earth MOID=9.5 LD, H=25.6 ~26m) was discovered at 0559 UT on 13 Oct. by LINEAR, which observed it at Oct. 13.25-28p4. The discovery was confirmed by Young/Table Mtn. (Oct. 14.35-38p4) and KLENOT (Oct. 15.01p5).

MPEC 2007-T105 - "05:18 UT" - 2007 TS68

K07T68S 2007 TS68 (H=19.4 ~446m) was discovered at 0933 UT on 12 Oct. by the MLS, which observed it at Oct. 12.40-47p7, 13.44-45p4, and 14.34-37p4. The discovery was confirmed by ARO (Oct. 13.22-24p3) and Spacewatch 1.8m (Oct. 14.31-32p3).

MPEC 2007-T104 - "05:13 UT" - 2007 TR68

K07T68R 2007 TR68 (small asteroid, H=26.0 ~21m) was discovered at 0721 UT on 12 Oct. by LINEAR, which observed it at Oct. 12.31-35p5 and 13.30-34p4. The discovery was confirmed by MLS (Oct. 14.33p3), Young/Table Mtn. (Oct. 14.45-47p4), Remanzacco Obs. (Oct. 14.86p3), and Grasslands Obs. (Oct. 15.18p3).

Observers on 15 October '07

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

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 3 in MPECs 2007-T105 & 2007-T112 -- 2007 TV18, 2007 TS68, 2007 RQ17
`170`	Begues Obs. in Spain, 1 in MPEC 2007-T112 -- 153271
`A74`	Bergen-Enkheim Obs. in Germany, 1 in MPEC 2007-T116 -- 2002 TA60
`703`	Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2007-T112, 2007-T113, 2007-T114 & 2007-T115 -- 2007 TG15, C/2007 T6, C/2007 T5, C/2007 T4, 2007 SE11, 2007 ML6, 2004 VT60, 2001 RY47
`448`	Desert Moon Obs. in New Mexico, 6 in MPEC 2007-T112 -- 2007 TC23, 2007 RU12, 2007 RT147, 2007 RM133, 2007 QK2, 2007 GW5
`113`	Drebach Obs. in Germany, 7 in MPECs 2007-T107 & 2007-T112 -- 2007 TV68, 2007 LR32, 2005 SG, 2002 UA31, 2002 RC118, 2001 SA270, 85770
`639`	Dresden Obs. in Germany, 3 in MPEC 2007-T112 -- 2007 TC14, 2007 RF5, 2001 RY47
`B21`	Gaisberg Obs. in Austria, 2 in MPECs 2007-T108 & 2007-T109 -- 2007 TX68, 2007 TW68
`B32`	Gelenau Obs. in Germany, 2 in MPEC 2007-T112 -- 2007 TC14, 2007 LR32
`651`	Grasslands Obs. in Arizona, 2 in MPECs 2007-T104 & 2007-T109 -- 2007 TX68, 2007 TR68
`A17`	Guidestar Obs. in Germany, 1 in MPEC 2007-T107 -- 2007 TV68
`024`	Heidelberg-Konigstuhl Obs. in Germany, 1 in MPEC 2007-T108 -- 2007 TW68
`B15`	Inastars Obs. in Germany, 3 in MPECs 2007-T112 & 2007-T113 -- C/2007 T4, 2000 QT7, 162173
`987`	Isle of Man Obs. on the Isle of Man, 1 in MPEC 2007-T112 -- 16636
`701`	Junk Bond Obs. in Arizona, 1 in MPEC 2007-T108 -- 2007 TW68
`246`	KLENOT in the Czech Republic, 9 in MPECs 2007-T106, 2007-T107, 2007-T108, 2007-T109, 2007-T110, 2007-T111 & 2007-T112 -- 2007 TZ68, 2007 TY68, 2007 TX68, 2007 TW68, 2007 TV68, 2007 TU68, 2007 TU24, 2007 TE66, 2007 PA8
`704`	LINEAR in New Mexico, 26 in MPECs 2007-T104, 2007-T106, 2007-T107, 2007-T110, 2007-T112 & 2007-T121 -- 2007 TY68, 2007 TV68, 2007 TV24, 2007 TU68, 2007 TU18, 2007 TS24, 2007 TS19, 2007 TR68, 2007 TH71, 2007 TD66, 2007 SQ6, 2007 RU17, 2007 RD20, 2007 QK2, 2007 GS3, 2004 TR13, 2002 UR3, 2001 RY47, 87311, 85628, 145656, 8034, 4954, 4503, 2212, 1865
`560`	Madonna di Dossobuono Obs. in Italy, 3 in MPEC 2007-T112 -- 2007 TJ19, 2007 DA41, 2001 RY47
`932`	McCarthy Obs. in Connecticut, 1 in MPEC 2007-T109 -- 2007 TX68
`118`	Modra Obs. in Slovakia, 1 in MPEC 2007-T110 -- 2007 TY68
`474`	Mt. John Obs. in New Zealand, 5 in MPECs 2007-T112, 2007-T118 & 2007-T123 -- 2007 TR65, 2007 TD71, 2007 TC66, 2007 KJ, 2007 KJ
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 19 in MPECs 2007-T104, 2007-T105, 2007-T108, 2007-T109, 2007-T111, 2007-T112, 2007-T113, 2007-T114, 2007-T115, 2007-T119 & 2007-T120 -- 2007 TZ68, 2007 TX68, 2007 TX18, 2007 TW68, 2007 TV18, 2007 TU24, 2007 TS68, 2007 TS19, 2007 TR68, 2007 TQ24, 2007 TL23, 2007 TL16, 2007 TG71, 2007 TE71, C/2007 T6, C/2007 T5, C/2007 T4, 2007 RE1, 2007 HE15
`566`	NEAT's GEODSS Haleakala telescope in Hawaii, 1 in MPEC 2007-T123 -- 2007 KJ
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 11 in MPEC 2007-T112 -- 2007 TX18, 2007 TG8, 2007 TC14, 2007 RF5, 2007 RD1, 2007 PU11, 2007 OV, 2007 LR32, 2007 KN4, 2004 TR13, 2002 RC118
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-T115 -- C/2007 T6
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2007-T104 -- 2007 TR68
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2007-T112 -- 2007 TT18
`E12`	Siding Spring Survey (SSS) in New South Wales, 3 in MPECs 2007-T112 & 2007-T118 -- 2007 TD71, 2007 TA19, 2007 RV17
`2492`	LASCO Coronagraph 2 (SOHO C2) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 8 in MPECs 2007-T117 & 2007-T122 -- C/2007 L9, C/2007 L8, C/2007 L7, C/2007 L6, C/2007 L13, C/2007 L12, C/2007 L11, C/2007 L10
`2493`	LASCO Coronagraph 3 (SOHO C3) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 3 in MPEC 2007-T122 -- C/2007 L13, C/2007 L11, C/2007 L10
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-T108 -- 2007 TW68
`291`	Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2007-T105, 2007-T108, 2007-T112, 2007-T119 & 2007-T120 -- 2007 TY24, 2007 TW68, 2007 TS68, 2007 TG71, 2007 TE71, 2007 TC23, 2005 NB7, 2003 AD1
`673`	Table Mtn. Obs. in southern California, 3 in MPECs 2007-T113, 2007-T114 & 2007-T115 -- C/2007 T6, C/2007 T5, C/2007 T4
`6735`	Jim Young via Table Mtn. Obs. in southern California, 6 in MPECs 2007-T104, 2007-T106, 2007-T107, 2007-T108, 2007-T109 & 2007-T110 -- 2007 TY68, 2007 TX68, 2007 TW68, 2007 TV68, 2007 TU68, 2007 TR68

Impact Risk Monitoring on 15 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 TD71	JPL	2230	2016-2107	41	9.3e-08	-3.09	-3.71	0	JPL: "Analysis based on 12 observations spanning 1.9312 days (2007-Oct-13.70201 to 2007-Oct-15.63321)." Diameter approximately 0.741 km. from mean, weighted H=18.3.

2007 TU68	JPL	1242	2080	1	2.4e-08	-8.04	-8.04	0	JPL: "Analysis based on 13 observations spanning 1.7588 days (2007-Oct-13.2499 to 2007-Oct-15.00873)." Diameter approximately 0.028 km. from mean, weighted H=25.4.
2007 TU68	NEODyS	1242	2084	1	1.39e-08	-8.31	-8.31	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2007/10/13.251 to 2007/10/15.009."

2007 TE66	JPL	1635	R E M O V E D						JPL: Risk listing removed at 1541 UTC.
2007 TE66	NEODyS	1241	R E M O V E D

2007 TC66	JPL	1635	R E M O V E D						JPL: Risk listing removed at 1541 UTC.
2007 TC66	NEODyS	1433	R E M O V E D

2007 TY24	JPL	1433	R E M O V E D						JPL: Risk listing removed at 1417 UTC.
2007 TY24	NEODyS	1403	R E M O V E D

2007 TU24	NEODyS	1635	2011-2089	23	9.11e-07	-3.61	-3.96	0	NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2007/10/11.269 to 2007/10/14.956."
2007 TU24	JPL	1242	2011-2106	188	1.5e-05	-1.80	-2.02	0	JPL: "Analysis based on 41 observations spanning 3.6867 days (2007-Oct-11.26838 to 2007-Oct-14.95505)." Diameter approximately 0.318 km. from mean, weighted H=20.1.

2007 TC23	NEODyS	1434	2069-2086	3	2.35e-09	-6.66	-7.01	0	NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2007/10/10.448 to 2007/10/14.502."
2007 TC23	JPL	1242	2069-2086	3	1.8e-09	-6.67	-6.99	0	JPL: "Analysis based on 22 observations spanning 4.0545 days (2007-Oct-10.44721 to 2007-Oct-14.50166)." Diameter approximately 0.276 km. from mean, weighted H=20.4.

2007 TX18	JPL	1241	R E M O V E D						JPL: Risk listing removed at 1054 UTC.
2007 TX18	NEODyS	1241	R E M O V E D

2007 TV18	NEODyS	1241	R E M O V E D

2007 TL16	NEODyS	1434	2074-2090	13	5.43e-06	-6.08	-6.24	0	NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2007/10/09.288 to 2007/10/14.269."
2007 TL16	JPL	1301	2074-2095	11	5.5e-06	-6.01	-6.15	0	JPL: "Analysis based on 29 observations spanning 4.9809 days (2007-Oct-09.28741 to 2007-Oct-14.26835)." Diameter approximately 0.020 km. from mean, weighted H=26.1.

2007 TC14	NEODyS	2101	2082	2	4.48e-07	-4.79	-4.84	0	NEODyS: "Based on 100 optical observations (of which 0 are rejected as outliers) from 2007/10/08.391 to 2007/10/14.853."
2007 TC14	JPL	1732	2082	2	4.5e-07	-4.78	-4.83	0	JPL: "Analysis based on 100 observations spanning 6.4617 days (2007-Oct-08.39044 to 2007-Oct-14.8521)." Diameter approximately 0.120 km. from mean, weighted H=22.2.

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 15 October '07

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

2301	Grabbed MPEC 2007-T123 - 2007 KJ - see above
2230	Noted that JPL has posted 2007 TD71 as an impact risk - see above
2139	Grabbed MPEC 2007-T122 - Comets C/2007 L10, 2007 L11, 2007 L12, 2007 L13 (SOHO) - see above
2100	Noted that NEODyS has posted 2007 TC14 as an impact risk - see above
2002	Grabbed MPEC 2007-T121 - 2007 TH71 - see above
1904	Grabbed MPEC 2007-T117 - Comets C/2007 L6, 2007 L7, 2007 L8, 2007 L9 (SOHO) - see above Grabbed MPEC 2007-T118 - 2007 TD71 - see above Grabbed MPEC 2007-T119 - 2007 TE71 - see above Grabbed MPEC 2007-T120 - 2007 TG71 - see above
1831	Grabbed MPEC 2007-T115 - Comet C/2007 T6 (Catalina) - see above Grabbed MPEC 2007-T116 - 2002 TA60 - see above
1732	Noted that JPL has posted 2007 TC14 as an impact risk - see above
1635	Noted that JPL has removed 2007 TC66 as an impact risk - see above Noted that JPL has removed 2007 TE66 as an impact risk - see above Noted that NEODyS has updated its 2007 TU24 risk assessment - see above Grabbed MPEC 2007-T113 - Comet C/2007 T4 (Gibbs) - see above Grabbed MPEC 2007-T114 - Comet C/2007 T5 (Gibbs) - see above
1434	Noted that NEODyS has updated its 2007 TL16 risk assessment - see above
1433	Noted that NEODyS has posted 2007 TC23 as an impact risk - see above Noted that NEODyS has removed 2007 TC66 as an impact risk - see above Noted that JPL has removed 2007 TY24 as an impact risk - see above
1403	Noted that NEODyS has removed 2007 TY24 as an impact risk - see above
1301	Noted that JPL has updated its 2007 TL16 risk assessment - see above
1243	Grabbed MPEC 2007-T112 - Daily Orbit Update - see above
1242	Grabbed MPEC 2007-T104 - 2007 TR68 - see above Grabbed MPEC 2007-T105 - 2007 TS68 - see above Grabbed MPEC 2007-T106 - 2007 TU68 - see above Grabbed MPEC 2007-T107 - 2007 TV68 - see above Grabbed MPEC 2007-T108 - 2007 TW68 - see above Grabbed MPEC 2007-T109 - 2007 TX68 - see above Grabbed MPEC 2007-T110 - 2007 TY68 - see above Grabbed MPEC 2007-T111 - 2007 TZ68 - see above
1241	Noted that JPL has updated its 2007 TC23 risk assessment - see above Noted that NEODyS has removed 2007 TE66 as an impact risk - see above Noted that JPL has updated its 2007 TU24 risk assessment - see above Noted that JPL has posted 2007 TU68 as an impact risk - see above Noted that NEODyS has posted 2007 TU68 as an impact risk - see above Noted that NEODyS has removed 2007 TV18 as an impact risk - see above Noted that JPL has removed 2007 TX18 as an impact risk - see above Noted that NEODyS has removed 2007 TX18 as an impact risk - see above

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