Goldstone made this radar imagery two months ago today showing asteroid 136617 1994 CC with two moonlets, "only the second triple system known in the near-Earth population" (the other is 153591 2001 SN263). Image credit: NASA/JPL/GSSR.
Contents on 12 August '09
- IAU Minor Planet Center
- NEOCP Activity -- three listings: 1 new, 2 updated
- New MPECs -- one MPEC
- 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 12 August '09
The MPC's NEO Confirmation Page has 3 listings: 1 new, 2 updated
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and two updated listings. Of these, two were "one nighters."
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 12 August '09
Minor Planet Electronic Circulars
As of last check at 2342 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
<< DOU on 12 Aug. '09 >> MPEC 2009-P42 - "06:06 UT" - Daily Orbit Update
- Observations of recently (no longer) risk-listed objects
- K09O00F 2009 OF (arc=19 days, H=21.5 ~170m) from the Siding Spring Survey (SSS) (Aug. 2.50p1)
- Observations of other objects
- K09O07Z 2009 OZ7 (arc=15 days, H=20.9 ~224m) from Naef Obs. (Aug. 11.91-96p5)
- K09O04Z 2009 OZ4 (i=38.1°, Q=4.394 AU, arc=18 days, H=19.2 ~490m) from Atlante Obs. (Aug. 12.10-11p3)
- K09O00G 2009 OG (i=48.3°, q=0.382 AU, Q=5.029 AU, arc=25 days, H=16.1 ~2.04 km) from Grove Creek Obs. (Aug. 11.41-42p2) and El Condor Obs. (Aug. 12.04-05p2)
- K09O00C 2009 OC (arc=2 opp, H=20.4 ~282m) from Madonna di Dossobuono Obs. (Aug. 11.89p3), Bootes Obs. (Aug. 11.94-95p3), Castelmartini Obs. (Aug. 11.97p3), and Thompsonville Obs. (Aug. 12.20-22p6)
- K09N00H 2009 NH (arc=32 days, H=18.7 ~616m) from Naef Obs. (Aug. 11.92-94p3), Castelmartini Obs. (Aug. 11.98p3), and Atlante Obs. (Aug. 12.06-07p3)
- K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=15.9 ~2.24 km) from Castelmartini Obs. (Aug. 11.84-85p3)
- K09N00A 2009 NA (Q=4.134 AU, arc=42 days, H=17.5 ~1.07 km) from Castelmartini Obs. (Aug. 11.98-99p3) and Bootes Obs. (Aug. 12.00-02p3)
- K09M06X 2009 MX6 (arc=48 days, H=19.2 ~490m) from Castelmartini Obs. (Aug. 11.81-82p3) and Bigmuskie Obs. (Aug. 11.83-84p3)
- K09M01L 2009 ML1 (arc=50 days, H=19.5 ~426m) from Castelmartini Obs. (Aug. 12.02-03p5)
- K09L00X 2009 LX (Q=4.543 AU, arc=61 days, H=19.5 ~426m) from Castelmartini Obs. (Aug. 11.00p3)
- K09K03C 2009 KC3 (Q=5.455 AU, arc=99 days, H=18.1 ~812m) from Grove Creek Obs. (Aug. 11.37-38p3) and SSS (Aug. 11.38p2)
- K09K02L 2009 KL2 (arc=2 opp, H=18.0 ~851m) from Castelmartini Obs. (Aug. 11.86-87p3)
- K05T45G 2005 TG45 (IEO, Q=0.935 AU, arc=3 opp, H=17.5 ~1.07 km) from Alter Satzberg Obs. (Aug. 11.82-84p3)
- K02N01P 2002 NP1 (arc=3 opp, H=17.6 ~1.02 km) from Atlante Obs. (Aug. 12.04-05p3) and Thompsonville Obs. (Aug. 12.23-24p6)
- K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from Castelmartini Obs. (Aug. 11.81p3) and Atlante Obs. (Aug. 11.86-87p3)
- K00T64O 2000 TO64 (i=37.4°, Q=4.445 AU, arc=4 opp, H=16.7 ~1.55 km) from Madonna di Dossobuono Obs. (Aug. 11.87-88p3)
- J99C08W 1999 CW8 (arc=3 opp, H=18.6 ~645m) from SSS (Aug. 1.60p1)
- L7390 217390 2005 CW25 from Bootes Obs. (Aug. 11.97-98p3)
- G3902 163902 2003 SW222 from Bigmuskie Obs. (Aug. 11.93-95p2)
- G2181 162181 1999 LF6 from Bigmuskie Obs. (Aug. 11.85-86p3)
- F9402 159402 1999 AP10 from Grove Creek Obs. (Aug. 11.51p1)
- F3591 153591 2001 SN263 from the Spacewatch 0.9m telescope (Aug. 10.27-31p3)
- F2637 152637 1997 NC1 from SSS (Aug. 11.40p1)
- 65733 65733 1993 PC from SSS (Aug. 2.56p1)
- 17274 17274 2000 LC16 from Atlante Obs. (Aug. 11.99-00p3) and Thompsonville Obs. (Aug. 12.17-18p6)
- 12711 12711 Tukmit (1991 BB) from SSS (Aug. 10.39-40p4)
- 05626 5626 1991 FE from Castelmartini Obs. (Aug. 11.96p3), Atlante Obs. (Aug. 12.01-02p3), and Thompsonville Obs. (Aug. 12.18-20p6)
- 04183 4183 Cuno (1959 LM) from SSS (Aug. 10.38-40p4)
- 03552 3552 Don Quixote (1983 SA) from program code "|" (32) via RAS Obs. Moorook (Aug. 3.45p2)
Observers on 12 August '09
Thirteen observing facilities appear in today's MPEC.
| Code | Observer / observatory |
|---|---|
| B03 | Alter Satzberg Obs. in Austria, 1 in MPEC 2009-P42 -- 2005 TG45 |
| J51 | Atlante Obs. in the Canary Islands, 6 in MPEC 2009-P42 -- 2009 OZ4, 2009 NH, 2002 NP1, 2002 LV, 17274, 5626 |
| B88 | Bigmuskie Obs. in Italy, 3 in MPEC 2009-P42 -- 2009 MX6, 163902, 162181 |
| J05 | Bootes Obs., 3 in MPEC 2009-P42 -- 2009 OC, 2009 NA, 217390 |
| 160 | Castelmartini Obs. in Italy, 10 in MPEC 2009-P42 -- 2009 OC, 2009 NH, 2009 NE, 2009 NA, 2009 MX6, 2009 ML1, 2009 LX, 2009 KL2, 2002 LV, 5626 |
| I21 | El Condor Obs. in Argentina, 1 in MPEC 2009-P42 -- 2009 OG |
| E16 | Grove Creek Obs. in New South Wales, 3 in MPEC 2009-P42 -- 2009 OG, 2009 KC3, 159402 |
| 560 | Madonna di Dossobuono Obs. in Italy, 2 in MPEC 2009-P42 -- 2009 OC, 2000 TO64 |
| A13 | Naef Obs. in Switzerland, 2 in MPEC 2009-P42 -- 2009 OZ7, 2009 NH |
| D90| | program code "|" (32) via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-P42 -- 3552 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 7 in MPEC 2009-P42 -- 2009 OF, 2009 KC3, 1999 CW8, 65733, 152637, 12711, 4183 |
| 691 | Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2009-P42 -- 153591 |
| H53 | Thompsonville Obs. in Illinois, 4 in MPEC 2009-P42 -- 2009 OC, 2002 NP1, 17274, 5626 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 12 August '09
At last check (NEODyS and JPL at 2342 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 12 August '09
Times are UTC for when items were noted or added by The Tracking News.
| 1608 | Noted that the NEOCP has become active |
| 1400 | Grabbed MPEC 2009-P42 - Daily Orbit Update - see above |
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