Aorounga Crater, one of three related impact structures in Chad, photographed from the International Space Station on July 25th this year. See ground photographs here. Photo courtesy of NASA/JSC.
Contents on 13 August '09
- IAU Minor Planet Center
- NEOCP Activity -- two listings: 2 updated
- New MPECs -- three MPECs
- Observers -- thirteen observing facilities
- Impact Risk Monitoring -- nothing to report
- Chronology
Resources:
- Consolidated Risk Tables - the CRT page
- Earth's Busy Neighborhood Traffic Report
- Ephemerides for risk-rated and nearby objects
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
The latest A/CC news is available via framed access, 
RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate 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 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 13 August '09
The MPC's NEO Confirmation Page has 2 listings: 2 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two updated listings. Both of these were "one nighters." So far The Tracking News has counted a total of five listings on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.
New MPECs on 13 August '09
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been three MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2009-P43 time-stamped "06:06 UT" - Daily Orbit Update - see below
- MPEC 2009-P44 time-stamped "16:02 UT" - 2006 XQ51 - see below
- MPEC 2009-P45 time-stamped "19:51 UT" - 2009 PN
MPEC 2009-P45 - "19:51 UT" - 2009 PN
- K09P00N 2009 PN (Q=4.768 AU, H=20.0 ~339m) was discovered at 0103 UT on 10 Aug. by Alianza S4 Obs., which observed it at Aug. 10.04-07p4, 11.07-09p4, and 12.05-08p3.
MPEC 2009-P44 - "16:02 UT" - 2006 XQ51
- K06X51Q 2006 XQ51 from NEAT's Mt. Palomar telescope (2003 Sept. 19.39-43p3 & 2003 Nov. 21.09-13p3), the Spacewatch 0.9m telescope (2003 Oct. 2.18-24p3, 2003 Nov. 18.07-12p3, 2005 Oct. 22.24-27p3, 2005 Oct. 27.49-53p3, 2005 Oct. 31.23-27p3, 2005 Dec. 4.07-12p3, 2005 Dec. 7.07-12p3, 2006 Oct. 12.43-46p3 & 2006 Oct. 16.46-50p3), and the Mt. Lemmon Survey (MLS) (2006 Sept. 28.35-38p4, 2006 Oct. 28.30-33p4, 2007 Oct. 25.48-51p4, 2007 Nov. 8.36-39p4 & 2007 Dec. 19.24-27p4)
<< DOU on 13 Aug. '09 >> MPEC 2009-P43 - "06:06 UT" - Daily Orbit Update
- Observations of small asteroids (H>22.0)
- K09P00H 2009 PH (arc=2 days, H=22.1 ~129m) from Astronomical Research Obs. (ARO) (Aug. 12.17-18p4) and Spacewatch 0.9m (Aug. 12.26p3)
- K09O05S 2009 OS5 (arc=21 days, H=23.9 ~56m) from ARO (Aug. 12.22-24p3)
- K09O03C 2009 OC3 (arc=20 days, H=22.2 ~123m) from ARO (Aug. 12.25-26p3)
- Observations of other objects
- K09O09P 2009 OP9 (arc=14 days, H=19.4 ~446m) from ARO (Aug. 12.31-32p3)
- K09O07Z 2009 OZ7 (arc=15 days, H=20.9 ~224m) from ARO (Aug. 12.14-15p4)
- K09O04Z 2009 OZ4 (i=38.1°, Q=4.394 AU, arc=18 days, H=19.2 ~490m) from LINEAR (Aug. 11.33-36p4) and ARO (Aug. 12.21-22p3)
- K09O00C 2009 OC (arc=2 opp, H=20.4 ~282m) from Petit Jean Mtn. South Obs. (PJMSO) (Aug. 12.37-38p6), Peschiera del Garda Obs. (Aug. 12.88-92p4), and Thompsonville Obs. (Aug. 13.16-17p6)
- K09N00L 2009 NL (Q=4.761 AU, arc=30 days, H=19.8 ~371m) from LINEAR (Aug. 11.32-36p4) and ARO (Aug. 12.18-19p4)
- K09N00H 2009 NH (arc=33 days, H=18.8 ~589m) from ARO (Aug. 12.16-17p5), PJMSO (Aug. 12.38p6), Peschiera del Garda Obs. (Aug. 12.95-98p5), and Thompsonville Obs. (Aug. 13.18-19p6)
- K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=15.9 ~2.24 km) from Bootes Obs. (Aug. 12.91-92p3)
- K09N00A 2009 NA (Q=4.133 AU, arc=42 days, H=17.5 ~1.07 km) from ARO (Aug. 12.27-28p4)
- K09M06Z 2009 MZ6 (arc=2 opp, H=20.6 ~257m) from ARO (Aug. 12.23-24p3)
- K09M01L 2009 ML1 (arc=50 days, H=19.5 ~426m) from ARO (Aug. 12.30-32p5)
- K09K22J 2009 KJ22 (arc=73 days, H=20.0 ~339m) from ARO (Aug. 12.19-20p3)
- K09K07C 2009 KC7 (Q=4.054 AU, arc=77 days, H=19.5 ~426m) from ARO (Aug. 12.12-13p3)
- K09K03C 2009 KC3 (Q=5.454 AU, arc=100 days, H=18.1 ~812m) from the Siding Spring Survey (SSS) (Aug. 12.37p2)
- K09J01K 2009 JK1 (arc=146 days, H=19.9 ~355m) from ARO (Aug. 12.08-11p5)
- K09H77V 2009 HV77 (arc=114 days, H=20.7 ~245m) from SSS (Aug. 12.57-59p4)
- K09F29Y 2009 FY29 (arc=139 days, H=20.0 ~339m) from ARO (Aug. 12.29-31p3)
- K09D01N 2009 DN1 (arc=174 days, H=20.3 ~295m) from ARO (Aug. 12.09-11p3)
- K09C03C 2009 CC3 (arc=189 days, H=19.1 ~513m) from ARO (Aug. 12.13-15p4)
- K07L00L 2007 LL (arc=3 opp, H=20.4 ~282m) from LINEAR (Aug. 9.21-25p3)
- K05S19G 2005 SG19 (Q=4.171 AU, arc=2 opp, H=16.6 ~1.62 km) from SSS (Aug. 11.77-80p2)
- K05M00C 2005 MC (Q=4.169 AU, arc=3 opp, H=16.4 ~1.78 km) from PJMSO (Aug. 12.38-39p5)
- K02N16W 2002 NW16 (arc=2 opp, H=18.0 ~851m) from Bootes Obs. (Aug. 12.94p3)
- K02N01P 2002 NP1 (arc=3 opp, H=17.6 ~1.02 km) from Thompsonville Obs. (Aug. 13.14-15p6)
- K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from Bootes Obs. (Aug. 12.86p3)
- L4088 214088 2004 JN13 from SSS (Aug. 10.43-44p3)
- G4121 164121 2003 YT1 from SSS (Aug. 12.77-80p4)
- G2854 162854 2001 DE47 from El Leoncito Obs. (Aug. 10.08-09p2)
- D6617 136617 1994 CC from LINEAR (Aug. 9.40-44p5) and ARO (Aug. 12.33p4)
- 52768 52768 1998 OR2 from El Leoncito Obs. (Aug. 9.14-16p3)
- 52750 52750 1998 KK17 from LINEAR (Aug. 12.33-35p3)
- 24761 24761 Ahau (1993 BW2) from El Leoncito Obs. (Aug. 10.22-24p3)
- 17274 17274 2000 LC16 from El Leoncito Obs. (Aug. 10.17-19p3) and LINEAR (Aug. 12.26-31p5)
- 16834 16834 1997 WU22 from Bootes Obs. (Aug. 12.95-96p3)
- 15745 15745 1991 PM5 from El Leoncito Obs. (Aug. 6.11-12p2 & 9.10-12p3)
- 05620 5620 Jasonwheeler (1990 OA) from El Leoncito Obs. (Aug. 6.06-08p3 & 9.06-09p3)
- 03753 3753 Cruithne (1986 TO) from Atlante Obs. (Aug. 12.17-21p3)
- 01943 1943 Anteros (1973 EC) from Thompsonville Obs. (Aug. 13.20-22p6)
Observers on 13 August '09
Thirteen observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| I08 | Alianza S4 Obs. in Argentina, 1 in MPEC 2009-P45 -- 2009 PN |
| H55 | Astronomical Research Obs. (ARO) in Illinois, 18 in MPEC 2009-P43 -- 2009 PH, 2009 OZ7, 2009 OZ4, 2009 OS5, 2009 OP9, 2009 OC3, 2009 NL, 2009 NH, 2009 NA, 2009 MZ6, 2009 ML1, 2009 KJ22, 2009 KC7, 2009 JK1, 2009 FY29, 2009 DN1, 2009 CC3, 136617 |
| J51 | Atlante Obs. in the Canary Islands, 1 in MPEC 2009-P43 -- 3753 |
| J05 | Bootes Obs., 4 in MPEC 2009-P43 -- 2009 NE, 2002 NW16, 2002 LV, 16834 |
| 808 | El Leoncito Obs. in Argentina, 6 in MPEC 2009-P43 -- 52768, 24761, 17274, 162854, 15745, 5620 |
| 704 | LINEAR in New Mexico, 6 in MPEC 2009-P43 -- 2009 OZ4, 2009 NL, 2007 LL, 52750, 17274, 136617 |
| G96 | Mt. Lemmon Survey in Arizona, 1 in MPEC 2009-P44 -- 2006 XQ51 |
| 644 | NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2009-P44 -- 2006 XQ51 |
| A53 | Peschiera del Garda Obs. in Italy, 2 in MPEC 2009-P43 -- 2009 OC, 2009 NH |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2009-P43 -- 2009 OC, 2009 NH, 2005 MC |
| E12 | Siding Spring Survey (SSS) in New South Wales, 5 in MPEC 2009-P43 -- 2009 KC3, 2009 HV77, 2005 SG19, 214088, 164121 |
| 691 | Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2009-P43 & 2009-P44 -- 2009 PH, 2006 XQ51 |
| H53 | Thompsonville Obs. in Illinois, 4 in MPEC 2009-P43 -- 2009 OC, 2009 NH, 2002 NP1, 1943 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 13 August '09
At last check (NEODyS and JPL at 2358 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.
Chronology on 13 August '09
Times are UTC for when items were noted or added by The Tracking News.
| 2015 | Grabbed MPEC 2009-P45 - 2009 PN - see above |
| 1617 | Grabbed MPEC 2009-P44 - 2006 XQ51 - see above |
| 1406 | Grabbed MPEC 2009-P43 - Daily Orbit Update - see above |
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