2009-08-30 Tracking News

Contents on 30 August '09

IAU Minor Planet Center
- NEOCP Activity -- two listings: 2 updated
- New MPECs -- six MPECs
Observers -- 34 observing facilities
Impact Risk Monitoring -- three objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
News image catalog - new 13-14 Aug. 2009
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 30 August '09

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2127 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two updated listings. So far The Tracking News has counted a total of six 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 30 August '09

Minor Planet Electronic Circulars

As of last check at 2127 UTC, there have been six MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2009-Q77 time-stamped "00:01 UT" - 2009 QA35 - see below
MPEC 2009-Q78 time-stamped "00:05 UT" - 2009 QB35 - see below
MPEC 2009-Q79 time-stamped "00:08 UT" - 2009 QC35 - see below
MPEC 2009-Q80 time-stamped "06:08 UT" - Daily Orbit Update - see below
MPEC 2009-Q81 time-stamped "20:55 UT" - 2009 QB36 - see below
MPEC 2009-Q82 time-stamped "20:58 UT" - 2009 QC36

MPEC 2009-Q82 - "20:58 UT" - 2009 QC36

K09Q36C 2009 QC36 was discovered at 0546 UT on 30 Aug. by the Catalina Sky Survey (CSS), which observed it at Aug. 30.24-31p8. The discovery was confirmed by Sandlot Obs. (Aug. 30.36p3), Sabino Canyon Obs. (Aug. 30.38-39p4), Rolando Ligustri via RAS Obs. Mayhill (Aug. 30.38-40p3), Moriyama Obs. (Aug. 30.51-52p2), Bisei Spaceguard Center (Aug. 30.66p4), Bergen-Enkheim Obs. (Aug. 30.82-84p4), and Eschenberg Obs. (Aug. 30.83p4).

MPEC 2009-Q81 - "20:55 UT" - 2009 QB36

K09Q36B 2009 QB36 was discovered at 0809 UT on 29 Aug. by LINEAR, which observed it at Aug. 29.34-38p4. The discovery was confirmed by Great Shefford Obs. (Aug. 29.91-93p3), Guidestar Obs. (Aug. 29.95-97p3), Gaisberg Obs. (Aug. 29.95-96p4), Raheny Obs. (Aug. 29.98-00p3), Remanzacco Obs. (Aug. 29.99p1), Drebach Obs. (Aug. 30.01p3), Modra Obs. (Aug. 30.11p2), Astronomical Research Obs. (ARO) (Aug. 30.28-29p2), Sandlot Obs. (Aug. 30.29-30p3), the Spacewatch 1.8m telescope (Aug. 30.32p3), Chabot Obs. (Aug. 30.37-38p5), and Sabino Canyon Obs. (Aug. 30.43p2).

<< DOU on 30 Aug. '09 >> MPEC 2009-Q80 - "06:08 UT" - Daily Orbit Update

Observations of risk-listed objects
K09Q34F 2009 QF34 (small asteroid, arc=3 days, H=22.2 ~123m) from Great Shefford Obs. (Aug. 30.10-12p2)
E4898 144898 2004 VD17 from LINEAR (2006 April 25.19-23p5)
Observations of recently (no longer) risk-listed objects
K09Q08L 2009 QL8 (arc=8 days, H=19.3 ~467m) from ARO (Aug. 26.29-31p4)
K09Q06Z 2009 QZ6 (arc=8 days, H=17.7 ~977m) from ARO (Aug. 26.22-23p3)
K09Q06H 2009 QH6 (small asteroid, arc=7 days, H=22.7 ~98m) from ARO (Aug. 26.28-29p3)
Observations of small asteroids (H>22.0)
K09Q35C 2009 QC35 (arc=1 day, H=25.2 ~31m) from Hagen Obs. (Aug. 29.94-96p3)
K09Q34H 2009 QH34 (arc=2 days, H=24.9 ~35m) from Guidestar Obs. (Aug. 29.81-82p3) and Great Shefford Obs. (Aug. 29.85p2 & 29.97-98p4)
K09Q23C 2009 QC23 (arc=8 days, H=24.9 ~35m) from ARO (Aug. 26.20-21p4) and Great Shefford Obs. (Aug. 29.00-03p4)
K09Q09K 2009 QK9 (arc=9 days, H=23.2 ~78m) from ARO (Aug. 26.18-19p5), Great Shefford Obs. (Aug. 30.06p4 & 30.14p3), and Bootes Obs. (Aug. 30.15-16p4)
K09Q05O 2009 QO5 (arc=11 days, H=22.3 ~117m) from Spacewatch 1.8m (Aug. 29.35-36p3)
K09Q05M 2009 QM5 (arc=11 days, H=22.4 ~112m) from ARO (Aug. 24.18-20p3 & 26.14-17p3) and Spacewatch 1.8m (Aug. 29.33-34p3)
K09Q02G 2009 QG2 (arc=11 days, H=23.3 ~74m) from ARO (Aug. 26.07-09p4)
K09P02T 2009 PT2 (arc=13 days, H=23.5 ~68m) from ARO (Aug. 24.08-10p3)
K09P01Q 2009 PQ1 (arc=11 days, H=22.5 ~107m) from ARO (Aug. 24.11-12p3)
K09P00H 2009 PH (arc=18 days, H=22.2 ~123m) from ARO (Aug. 26.10-12p3)
K09O03C 2009 OC3 (arc=34 days, H=22.3 ~117m) from ARO (Aug. 26.31-33p3)
K07R17Q 2007 RQ17 (arc=2 opp, H=22.5 ~107m) from La Sagra Obs. (Aug. 29.05-07p3)
Observations of almost-small asteroids (21.7<H<=22.0)
K09Q00S 2009 QS (arc=11 days, H=22.0 ~135m) from ARO (Aug. 26.15-16p3)
Observations of other objects
K09Q33Y 2009 QY33 (arc=11 days, H=19.6 ~407m) from La Sagra Obs. (Aug. 28.97-99p3) and Spacewatch 1.8m (Aug. 29.30-31p3)
K09Q09J 2009 QJ9 (Q=4.397 AU, arc=9 days, H=19.4 ~446m) from ARO (Aug. 26.08-09p4), Vitebsk Obs. (Aug. 28.86-87p5), Great Shefford Obs. (Aug. 29.90-94p4), Corner Obs. (Aug. 29.93-96p8), and El Condor Obs. (Aug. 30.00-04p4)
K09Q08Q 2009 QQ8 (arc=9 days, H=21.3 ~186m) from ARO (Aug. 26.24-25p3) and CSS (Aug. 29.33-35p4)
K09Q02L 2009 QL2 (Q=4.151 AU, arc=12 days, H=21.0 ~214m) from Guidestar Obs. (Aug. 29.86-88p3)
K09Q02K 2009 QK2 (Q=4.950 AU, arc=10 days, H=18.0 ~851m) from ARO (Aug. 24.27-28p5 & 26.26-27p3)
K09Q02H 2009 QH2 (arc=9 days, H=21.2 ~195m) from ARO (Aug. 26.19-20p5)
K09O07Z 2009 OZ7 (arc=29 days, H=21.0 ~214m) from ARO (Aug. 26.13-14p3)
K09O00G 2009 OG (i=48.3°, q=0.382 AU, Q=5.028 AU, arc=40 days, H=16.2 ~1.95 km) from Kiev Comet Station (Aug. 25.79p2)
K09O00C 2009 OC (arc=2 opp, H=20.3 ~295m) from Thompsonville Obs. (Aug. 30.14p6)
K09N00H 2009 NH (arc=50 days, H=18.7 ~616m) from El Condor Obs. (Aug. 30.06-09p2) and Thompsonville Obs. (Aug. 30.17-18p6)
K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=15.9 ~2.24 km) from LINEAR (Aug. 29.13-18p5)
K09M09C 2009 MC9 (arc=61 days, H=18.1 ~812m) from CSS (Aug. 29.19-21p4) and El Condor Obs. (Aug. 30.19-20p2)
K09M06X 2009 MX6 (arc=63 days, H=19.1 ~513m) from ARO (Aug. 26.09-11p4)
K09J01K 2009 JK1 (arc=2 opp, H=20.0 ~339m) from ARO (Aug. 26.11-13p4)
K09F29Y 2009 FY29 (arc=156 days, H=19.9 ~355m) from LINEAR (Aug. 29.34-36p3)
K08E82N 2008 EN82 (arc=6 opp, H=15.6 ~2.57 km, q=1.120 AU) from LINEAR (2004 March 16.23-28p4)
K06X02D 2006 XD2 (arc=2 opp, H=21.0 ~214m) from LINEAR (2006 Nov. 28.35-38p3)
K06V13D 2006 VD13 (arc=2 opp, H=18.9 ~562m) from LINEAR (2006 Nov. 14.06-11p5)
K06O05B 2006 OB5 (arc=3 opp, H=20.1 ~323m) from LINEAR (2006 Nov. 21.13-16p4)
K04T00N 2004 TN (arc=3 opp, H=19.2 ~490m) from Spacewatch 1.8m (Aug. 29.37-40p3 at V=21.8-22.2)
K04Q17C 2004 QC17 (arc=3 opp, H=18.7 ~616m) from LINEAR (2004 Dec. 12.21-25p3)
K04J02O 2004 JO2 (arc=2 opp, H=17.5 ~1.07 km) from LINEAR (2004 May 15.30p1)
K04E00B 2004 EB (Q=5.184 AU, arc=2 opp, H=17.2 ~1.23 km) from LINEAR (2004 March 29.23-27p3)
K03Y70R 2003 YR70 (arc=2 opp, H=20.0 ~339m) from LINEAR (2003 Dec. 23.40p1)
K03W25M 2003 WM25 (Q=4.101 AU, arc=2 opp, H=17.6 ~1.02 km) from LINEAR (2004 Jan. 19.23p1)
K03W07O 2003 WO7 (arc=3 opp, H=18.8 ~589m) from LINEAR (2006 June 23.32-35p4)
K03S05K 2003 SK5 (arc=2 opp, H=20.0 ~339m) from LINEAR (2006 Sept. 18.18-22p5 & 2006 Sept. 25.17-22p4)
K03E00G 2003 EG (arc=5 opp, H=16.4 ~1.78 km) from LINEAR (2003 March 7.38-43p4)
K03D14C 2003 DC14 (Q=4.509 AU, arc=3 opp, H=16.5 ~1.70 km) from LINEAR (2003 Jan. 26.38-44p4)
K02W11P 2002 WP11 (arc=3 opp, H=18.1 ~812m) from LINEAR (2005 Dec. 2.20-25p4)
K02R25Q 2002 RQ25 (arc=4 opp, H=20.5 ~269m) from the Siding Spring Survey (SSS) (Aug. 27.59-62p4)
K02Q24G 2002 QG24 (arc=3 opp, H=17.8 ~933m) from the Spacewatch 0.9m telescope (Aug. 29.34-38p3)
K02B26P 2002 BP26 (arc=3 opp, H=19.0 ~537m) from ARO (Aug. 25.30-32p3)
K01QE2K 2001 QK142 (arc=4 opp, H=16.6 ~1.62 km) from LINEAR (2005 Dec. 2.40-45p4)
K00QD0N 2000 QN130 (Q=4.550 AU, arc=2 opp, H=18.0 ~851m) from LINEAR (2005 Dec. 4.40-43p3)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from El Condor Obs. (Aug. 30.12-13p2)
J99Y03G 1999 YG3 (arc=3 opp, H=19.1 ~513m) from ARO (Aug. 26.27-29p2 at V=22.0-22.1)
L6689 216689 2004 HM1 from LINEAR (2004 May 18.28-31p5)
I6844 186844 2004 GA1 from LINEAR (2004 Dec. 19.20-23p3)
H4806 174806 2003 XL from LINEAR (2003 Dec. 17.20-23p4)
G2181 162181 1999 LF6 from LINEAR (Aug. 29.13-18p5)
F9856 159856 2004 JW6 from LINEAR (2004 May 14.25-27p7)
F9402 159402 1999 AP10 from Beta Orionis Obs. (Aug. 30.10p3)
F3249 153249 2001 BW15 from LINEAR (2004 March 25.18-22p4)
E4901 144901 2004 WG1 from LINEAR (2006 Feb. 4.42-48p3)
E3404 143404 2003 BD44 from LINEAR (2006 Nov. 17.19-24p5 & 2006 Nov. 21.19-22p4)
E2040 142040 2002 QE15 from LINEAR (2006 June 24.19-22p4)
E0158 140158 2001 SX169 from LINEAR (2006 Dec. 11.13-17p4)
D8911 138911 2001 AE2 from LINEAR (2006 Aug. 30.31-35p5)
D8359 138359 2000 GX127 from LINEAR (2006 Jan. 5.48-53p5)
D8205 138205 2000 EZ148 from LINEAR (2004 May 16.21-24p4)
99935 99935 2002 AV4 from LINEAR (2003 Dec. 17.40-45p5 & 2006 Jan. 20.27p1)
90416 90416 2003 YK118 from LINEAR (2003 Dec. 17.41-45p3)
90367 90367 2003 LC5 from LINEAR (2004 March 15.39-43p4)
89355 89355 2001 VS78 from LINEAR (2004 March 18.11-15p4)
89136 89136 2001 US16 from LINEAR (2004 Feb. 25.32-36p4)
88263 88263 2001 KQ1 from LINEAR (Aug. 29.39-45p5)
86450 86450 2000 CK33 from LINEAR (2004 Jan. 29.40-42p3 & 2004 April 1.27-32p5)
55408 55408 2001 TC2 from LINEAR (Aug. 29.34-38p3)
52768 52768 1998 OR2 from LINEAR (2004 Dec. 2.27-32p3 & 2004 Dec. 9.26-29p2)
48603 48603 1995 BC2 from LINEAR (2003 March 5.24-30p5)
42286 42286 2001 TN41 from LINEAR (2006 Dec. 29.19-24p4)
40329 40329 1999 ML from LINEAR (2006 Nov. 29.28-31p4)
26760 26760 2001 KP41 from LINEAR (2006 Sept. 26.35-40p4)
25916 25916 2001 CP44 from LINEAR (2003 Dec. 27.29-34p5)
22771 22771 1999 CU3 from LINEAR (Aug. 29.39-45p5)
18109 18109 2000 NG11 from LINEAR (2004 March 19.29-32p3)
17274 17274 2000 LC16 from Thompsonville Obs. (Aug. 30.09-10p6)
11398 11398 1998 YP11 from LINEAR (2006 Aug. 30.36-41p3)
10115 10115 1992 SK from LINEAR (2006 Nov. 28.15-19p4)
08566 8566 1996 EN from Guidestar Obs. (Aug. 30.13-14p4)
06611 6611 1993 VW from LINEAR (2004 Dec. 12.13-19p5)
06455 6455 1992 HE from LINEAR (Aug. 29.39-44p4)
05786 5786 Talos (1991 RC) from La Sagra Obs. (Aug. 28.90-93p3)
05751 5751 Zao (1992 AC) from LINEAR (2006 Aug. 30.42-46p5)
05626 5626 1991 FE from LINEAR (2004 Jan. 28.40-44p5 & 2004 May 21.17-21p4) and Thompsonville Obs. (Aug. 30.10-11p6)
05587 5587 1990 SB from LINEAR (2003 Jan. 28.17p1)
05131 5131 1990 BG from LINEAR (2006 Feb. 23.11-15p4)
04450 4450 Pan (1987 SY) from LINEAR (2006 Nov. 16.13-16p4)
04015 4015 Wilson-Harrington (1979 VA) from LINEAR (2005 Dec. 4.39-45p5 & 2005 Dec. 8.39-45p4)
02368 2368 Beltrovata (1977 RA) from LINEAR (2005 Dec. 4.39-43p4)
01943 1943 Anteros (1973 EC) from Bootes Obs. (Aug. 29.92-96p3) and Thompsonville Obs. (Aug. 30.15-16p6)
01916 1916 Boreas (1953 RA) from LINEAR (2004 Feb. 23.36-41p4)
01864 1864 Daedalus (1971 FA) from LINEAR (2006 April 28.19-22p4)
01862 1862 Apollo (1932 HA) from LINEAR (2003 Feb. 6.28-35p5)
00433 433 Eros (1898 DQ) from Tucci Obs. (Aug. 28.97-98p3)

MPEC 2009-Q79 - "00:08 UT" - 2009 QC35

K09Q35C 2009 QC35 (small asteroid) was discovered at 0554 UT on 29 Aug. by CSS, which observed it at Aug. 29.25-32p12. The discovery was confirmed by Sabino Canyon Obs. (Aug. 29.32p3), K. Hills via RAS Obs. Moorook (Aug. 29.51-53p4), and Great Shefford Obs. (Aug. 29.88-89p3).

MPEC 2009-Q78 - "00:05 UT" - 2009 QB35

K09Q35B 2009 QB35 (risk-listed) was discovered at 0814 UT on 28 Aug. by LINEAR, which observed it at Aug. 28.34-37p3. The discovery was confirmed by Great Shefford Obs. (Aug. 28.97p1 & 29.07p3), Consell Obs. (Aug. 29.02p5), and Schiaparelli Obs. (Aug. 29.03p1).

MPEC 2009-Q77 - "00:01 UT" - 2009 QA35

K09Q35A 2009 QA35 was discovered at 0714 UT on 28 Aug. by Spacewatch 0.9m, which observed it at Aug. 28.30-33p3. The discovery was confirmed by CSS (Aug. 28.29-31p4 & 29.28-29p4), Great Shefford Obs. (Aug. 29.09-10p3), Spacewatch 1.8m (Aug. 29.25p2 & 29.30p1), Sandlot Obs. (Aug. 29.29-30p2), and Sabino Canyon Obs. (Aug. 29.34-35p2).

Observers on 30 August '09

A total of 34 observing facilities appear in today's MPECs.

Code	Observer / observatory
`H55`	Astronomical Research Obs. (ARO) in Illinois, 22 in MPECs 2009-Q80 & 2009-Q81 -- 2009 QZ6, 2009 QS, 2009 QQ8, 2009 QM5, 2009 QL8, 2009 QK9, 2009 QK2, 2009 QJ9, 2009 QH6, 2009 QH2, 2009 QG2, 2009 QC23, 2009 QB36, 2009 PT2, 2009 PQ1, 2009 PH, 2009 OZ7, 2009 OC3, 2009 MX6, 2009 JK1, 2002 BP26, 1999 YG3
`A74`	Bergen-Enkheim Obs. in Germany, 1 in MPEC 2009-Q82 -- 2009 QC36
`I32`	Beta Orionis Obs. in Argentina, 1 in MPEC 2009-Q80 -- 159402
`300`	Bisei Spaceguard Center in Japan, 1 in MPEC 2009-Q82 -- 2009 QC36
`J05`	Bootes Obs., 2 in MPEC 2009-Q80 -- 2009 QK9, 1943
`703`	Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2009-Q77, 2009-Q79, 2009-Q80 & 2009-Q82 -- 2009 QQ8, 2009 QC36, 2009 QC35, 2009 QA35, 2009 MC9
`G58`	Chabot Obs. in northern California, 1 in MPEC 2009-Q81 -- 2009 QB36
`176`	Consell Obs. in Spain, 1 in MPEC 2009-Q78 -- 2009 QB35
`B50`	Corner Obs. in Germany, 1 in MPEC 2009-Q80 -- 2009 QJ9
`113`	Drebach Obs. in Germany, 1 in MPEC 2009-Q81 -- 2009 QB36
`I21`	El Condor Obs. in Argentina, 4 in MPEC 2009-Q80 -- 2009 QJ9, 2009 NH, 2009 MC9, 2000 CO101
`151`	Eschenberg Obs. in Switzerland, 1 in MPEC 2009-Q82 -- 2009 QC36
`B21`	Gaisberg Obs. in Austria, 1 in MPEC 2009-Q81 -- 2009 QB36
`J95`	Great Shefford Obs. in England, 9 in MPECs 2009-Q77, 2009-Q78, 2009-Q79, 2009-Q80 & 2009-Q81 -- 2009 QK9, 2009 QJ9, 2009 QH34, 2009 QF34, 2009 QC35, 2009 QC23, 2009 QB36, 2009 QB35, 2009 QA35
`A17`	Guidestar Obs. in Germany, 4 in MPECs 2009-Q80 & 2009-Q81 -- 2009 QL2, 2009 QH34, 2009 QB36, 8566
`B86`	Hagen Obs. in Germany, 1 in MPEC 2009-Q80 -- 2009 QC35
`585`	Kiev Comet Station in the Ukraine, 1 in MPEC 2009-Q80 -- 2009 OG
`704`	LINEAR in New Mexico, 64 in MPECs 2009-Q78, 2009-Q80 & 2009-Q81 -- 2009 QB36, 2009 QB35, 2009 NE, 2009 FY29, 2008 EN82, 2006 XD2, 2006 VD13, 2006 OB5, 2004 QC17, 2004 JO2, 2004 EB, 2003 YR70, 2003 WO7, 2003 WM25, 2003 SK5, 2003 EG, 2003 DC14, 2002 WP11, 2001 QK142, 2000 QN130, 99935, 90416, 90367, 89355, 89136, 88263, 86450, 55408, 52768, 48603, 42286, 40329, 26760, 25916, 22771, 216689, 186844, 18109, 174806, 162181, 159856, 153249, 144901, 144898, 143404, 142040, 140158, 138911, 138359, 138205, 11398, 10115, 6611, 6455, 5751, 5626, 5587, 5131, 4450, 4015, 2368, 1916, 1864, 1862
`J75`	La Sagra Obs. in Spain, 3 in MPEC 2009-Q80 -- 2009 QY33, 2007 RQ17, 5786
`118`	Modra Obs. in Slovakia, 1 in MPEC 2009-Q81 -- 2009 QB36
`900`	Moriyama Obs. in Japan, 1 in MPEC 2009-Q82 -- 2009 QC36
`H06*`	Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-Q82 -- 2009 QC36
D90`	K. Hills via RAS Obs. Moorook in South Australia, 1 in MPEC 2009-Q79 -- 2009 QC35
`J41`	Raheny Obs. in Ireland, 1 in MPEC 2009-Q81 -- 2009 QB36
`473`	Remanzacco Obs. in Italy, 1 in MPEC 2009-Q81 -- 2009 QB36
`854`	Sabino Canyon Obs. in Arizona, 4 in MPECs 2009-Q77, 2009-Q79, 2009-Q81 & 2009-Q82 -- 2009 QC36, 2009 QC35, 2009 QB36, 2009 QA35
`H36`	Sandlot Obs. in Kansas, 3 in MPECs 2009-Q77, 2009-Q81 & 2009-Q82 -- 2009 QC36, 2009 QB36, 2009 QA35
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2009-Q78 -- 2009 QB35
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2009-Q80 -- 2002 RQ25
`691`	Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2009-Q77 & 2009-Q80 -- 2009 QA35, 2002 QG24
`291`	Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2009-Q77, 2009-Q80 & 2009-Q81 -- 2009 QY33, 2009 QO5, 2009 QM5, 2009 QB36, 2009 QA35, 2004 TN
`H53`	Thompsonville Obs. in Illinois, 5 in MPEC 2009-Q80 -- 2009 OC, 2009 NH, 17274, 5626, 1943
`J35`	Tucci Obs. in Spain, 1 in MPEC 2009-Q80 -- 433
`B42`	Vitebsk Obs. in Belarus, 1 in MPEC 2009-Q80 -- 2009 QJ9

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 30 August '09

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS and JPL at 2127 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few objects.
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

2009 QB35	NEODyS	1552	2017-2088	13	1.65e-08	-4.87	-5.30	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2009/08/28.344 to 2009/08/29.072."
2009 QB35	JPL Sentry	0430	2012-2108	201	2.7e-07	-3.74	-4.23	0	JPL: "Analysis based on 13 observations spanning .72860 days (2009-Aug-28.34307 to 2009-Aug-29.07167)." Diameter approximately 0.351 km. from mean, weighted H=19.9.

2009 QF34	NEODyS	1552	R E M O V E D						-
2009 QF34	JPL Sentry	1552	R E M O V E D						JPL: Risk listing removed at 0850 UTC.

2004 BX159	JPL Sentry	0430	2014-2100	13	2.6e-09	-4.27	-4.64	0	JPL: "Analysis based on 8 observations spanning 3.0080 days (2004-Jan-20.317639 to 2004-Jan-23.32563)." Diameter approximately 1.200 km. from mean, weighted H=17.2.

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 a variant 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" to learn more.

Chronology on 30 August '09

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

2127	Grabbed MPEC 2009-Q81 - 2009 QB36 - see above Grabbed MPEC 2009-Q82 - 2009 QC36 - see above
1552	Noted that NEODyS has posted 2009 QB35 as an impact risk - see above Noted that JPL Sentry has removed 2009 QF34 as an impact risk - see above Noted that NEODyS has removed 2009 QF34 as an impact risk - see above Grabbed MPEC 2009-Q80 - Daily Orbit Update - see above
0430	Noted that JPL Sentry has updated its 2004 BX159 risk assessment - see above Noted that JPL Sentry has posted 2009 QB35 as an impact risk - see above
0027	Grabbed MPEC 2009-Q77 - 2009 QA35 - see above Grabbed MPEC 2009-Q78 - 2009 QB35 - see above Grabbed MPEC 2009-Q79 - 2009 QC35 - see above

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