Contents on 24 August '09
- IAU Minor Planet Center
- NEOCP Activity -- one listing: 1 updated
- New MPECs -- two MPECs
- Observers -- 26 observing facilities
- Impact Risk Monitoring -- one object
- 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 24 August '09
The MPC's NEO Confirmation Page has 1 listing: 1 updated
When last checked at 1909 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter." So far The Tracking News has counted a total of four 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 24 August '09
Minor Planet Electronic Circulars
As of last check at 1909 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2009-Q52 time-stamped "03:21 UT" - 2009 QC23 - see below
- MPEC 2009-Q53 time-stamped "06:07 UT" - Daily Orbit Update
<< DOU on 24 Aug. '09 >> MPEC 2009-Q53 - "06:07 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K09Q08L 2009 QL8 (arc=4 days, H=19.3 ~467m) from BDI Obs. (Aug. 23.59-62p2) and Consell Obs. (Aug. 23.98-99p4)
- Observations of recently (no longer) risk-listed objects
- K09Q06Z 2009 QZ6 (arc=5 days, H=17.6 ~1.02 km) from Guidestar Obs. (Aug. 23.85-87p3)
- Observations of small asteroids (H>22.0)
- K09Q09K 2009 QK9 (arc=3 days, H=22.9 ~89m) from Petit Jean Mtn. South Obs. (PJMSO) (Aug. 23.37-38p6), Eschenberg Obs. (Aug. 23.80-81p3), Guidestar Obs. (Aug. 23.83-84p3), Bigmuskie Obs. (Aug. 23.90-93p3), and Consell Obs. (Aug. 23.90-91p6)
- K09Q02J 2009 QJ2 (arc=5 days, H=23.5 ~68m) from the Siding Spring Survey (SSS) (Aug. 23.55-56p2)
- Observations of other objects
- K09Q09J 2009 QJ9 (Q=4.372 AU, arc=3 days, H=19.3 ~467m) from Siegen Obs. (Aug. 22.87-89p3), Eschenberg Obs. (Aug. 23.82-83p3), Verona Obs. (Aug. 23.82p4), Great Shefford Obs. (Aug. 23.86-89p4), Consell Obs. (Aug. 23.88p5), and Doc Greiner Research Obs. (DGRO) (Aug. 24.07-08p10)
- K09Q08Q 2009 QQ8 (arc=4 days, H=21.2 ~195m) from Taunus Obs. (Aug. 23.97-01p4)
- K09Q02K 2009 QK2 (Q=4.942 AU, arc=5 days, H=17.9 ~891m) from PJMSO (Aug. 23.39-40p6)
- K09Q01W 2009 QW1 (Q=4.204 AU, arc=6 days, H=21.6 ~162m) from SSS (Aug. 23.52p1 & 23.58p1)
- K09P00Y 2009 PY (arc=10 days, H=21.2 ~195m) from SSS (Aug. 23.43p1)
- K09O07Z 2009 OZ7 (arc=26 days, H=21.0 ~214m) from PJMSO (Aug. 23.17-18p6)
- K09O00G 2009 OG (i=48.3°, q=0.382 AU, Q=5.028 AU, arc=37 days, H=16.3 ~1.86 km) from Thompsonville Obs. (Aug. 23.08-09p6) and DGRO (Aug. 24.08p10)
- K09O00C 2009 OC (arc=2 opp, H=20.4 ~282m) from PJMSO (Aug. 23.14-15p6)
- K09N00H 2009 NH (arc=43 days, H=18.7 ~616m) from PJMSO (Aug. 23.23-24p6)
- K09N00E 2009 NE (q=0.361 AU, Q=4.987 AU, arc=4 opp, H=15.9 ~2.24 km) from Verona Obs. (Aug. 11.85-87p4), PJMSO (Aug. 23.11p6), and Thompsonville Obs. (Aug. 23.12-14p6)
- K09N00A 2009 NA (Q=4.132 AU, arc=53 days, H=17.5 ~1.07 km) from PJMSO (Aug. 23.31-32p6)
- K09M09C 2009 MC9 (arc=54 days, H=18.0 ~851m) from El Condor Obs. (Aug. 23.01p1 & 23.09p1) and Eschenberg Obs. (Aug. 23.84-85p7)
- K09M06X 2009 MX6 (arc=60 days, H=19.1 ~513m) from Thompsonville Obs. (Aug. 23.10-12p6)
- K09M01L 2009 ML1 (arc=61 days, H=19.5 ~426m) from PJMSO (Aug. 23.27-28p6)
- K09L00X 2009 LX (Q=4.542 AU, arc=73 days, H=19.4 ~446m) from PJMSO (Aug. 23.29p6) and Stia Obs. (Aug. 23.84-86p3)
- K09K02L 2009 KL2 (arc=2 opp, H=18.0 ~851m) from PJMSO (Aug. 23.11-12p6)
- K09J01K 2009 JK1 (arc=2 opp, H=20.0 ~339m) from PJMSO (Aug. 23.12-13p6)
- K09H82B 2009 HB82 (Q=4.414 AU, arc=122 days, H=17.8 ~933m) from PJMSO (Aug. 23.41-42p6)
- K09H77V 2009 HV77 (arc=125 days, H=20.7 ~245m) from El Condor Obs. (Aug. 23.14-15p2)
- K05T15E 2005 TE15 (arc=3 opp, H=19.9 ~355m) from Rio Cuarto Obs. (Aug. 23.36-37p3)
- K04R10U 2004 RU10 (q=0.310 AU, arc=3 opp, H=18.2 ~776m) from Rio Cuarto Obs. (Aug. 23.23-24p3)
- K02R25Q 2002 RQ25 (arc=4 opp, H=20.5 ~269m) from Tanti Obs. (Aug. 23.28p3) and Rio Cuarto Obs. (Aug. 23.33p4)
- K02N16W 2002 NW16 (arc=2 opp, H=18.0 ~851m) from PJMSO (Aug. 23.32p5)
- K02N01P 2002 NP1 (arc=3 opp, H=17.6 ~1.02 km) from Siegen Obs. (Aug. 22.93-94p3) and PJMSO (Aug. 23.18p5)
- K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from El Condor Obs. (Aug. 23.05-06p2)
- K00X44K 2000 XK44 (arc=4 opp, H=18.0 ~851m) from El Condor Obs. (Aug. 23.23-26p2)
- K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from El Condor Obs. (Aug. 23.19p1 & 23.24p1) and Tanti Obs. (Aug. 23.24-25p3)
- J90H00A 1990 HA (Q=4.356 AU, arc=6 opp, H=16.3 ~1.86 km) from Paul Roche via Faulkes Telescope North (Aug. 23.45p2)
- L7390 217390 2005 CW25 from Thompsonville Obs. (Aug. 23.14-15p6)
- E3651 143651 2003 QO104 from El Condor Obs. (Aug. 23.12-13p2)
- 54401 54401 2000 LM from Stia Obs. (Aug. 23.82-84p3)
- 16834 16834 1997 WU22 from Velikie Luki Obs. (Aug. 22.82-86p3)
- 05626 5626 1991 FE from El Condor Obs. (Aug. 23.03p1 & 23.10p1) and Thompsonville Obs. (Aug. 23.16-18p6)
- 04183 4183 Cuno (1959 LM) from Los Molinos Obs. (Aug. 24.03-05p5)
- 03552 3552 Don Quixote (1983 SA) from Los Molinos Obs. (Aug. 24.10-12p7)
- 03200 3200 Phaethon (1983 TB) from Velikie Luki Obs. (Aug. 22.98-01p2)
- 02100 2100 Ra-Shalom (1978 RA) from Thompsonville Obs. (Aug. 23.09-10p6)
- 00433 433 Eros (1898 DQ) from Siegen Obs. (Aug. 22.90-91p3)
MPEC 2009-Q52 - "03:21 UT" - 2009 QC23
- K09Q23C 2009 QC23 was discovered at 1029 UT on 22 Aug. by Hibiscus Obs., which observed it at Aug. 22.44-45p9. The discovery was confirmed by Cordell-Lorenz Obs. (Aug. 23.27-30p7), Sandlot Obs. (Aug. 23.34-35p4), Great Shefford Obs. (Aug. 23.89-91p4 & 24.04-05p3), Jaen Obs. (Aug. 23.93-94p2), Drebach Obs. (Aug. 23.93-95p4), Consell Obs. (Aug. 23.96p4), and Marxuquera Obs. (Aug. 23.98p3).
Observers on 24 August '09
A total of 26 observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| E18 | BDI Obs. in New South Wales, 1 in MPEC 2009-Q53 -- 2009 QL8 |
| B88 | Bigmuskie Obs. in Italy, 1 in MPEC 2009-Q53 -- 2009 QK9 |
| 176 | Consell Obs. in Spain, 4 in MPECs 2009-Q52 & 2009-Q53 -- 2009 QL8, 2009 QK9, 2009 QJ9, 2009 QC23 |
| 850 | Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2009-Q52 -- 2009 QC23 |
| H26 | Doc Greiner Research Obs. (DGRO) in Wisconsin, 2 in MPEC 2009-Q53 -- 2009 QJ9, 2009 OG |
| 113 | Drebach Obs. in Germany, 1 in MPEC 2009-Q52 -- 2009 QC23 |
| I21 | El Condor Obs. in Argentina, 7 in MPEC 2009-Q53 -- 2009 MC9, 2009 HV77, 2002 LV, 2000 XK44, 2000 CO101, 143651, 5626 |
| 151 | Eschenberg Obs. in Switzerland, 3 in MPEC 2009-Q53 -- 2009 QK9, 2009 QJ9, 2009 MC9 |
| F657 | Paul Roche in Wales via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-Q53 -- 1990 HA |
| J95 | Great Shefford Obs. in England, 2 in MPECs 2009-Q52 & 2009-Q53 -- 2009 QJ9, 2009 QC23 |
| A17 | Guidestar Obs. in Germany, 2 in MPEC 2009-Q53 -- 2009 QZ6, 2009 QK9 |
| F84 | Hibiscus Obs. in Tahiti, 1 in MPEC 2009-Q52 -- 2009 QC23 |
| J28 | Jaen Obs. in Spain, 1 in MPEC 2009-Q52 -- 2009 QC23 |
| 844 | Los Molinos Obs. in Uruguay, 2 in MPEC 2009-Q53 -- 4183, 3552 |
| 952 | Marxuquera Obs. in Spain, 1 in MPEC 2009-Q52 -- 2009 QC23 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 14 in MPEC 2009-Q53 -- 2009 QK9, 2009 QK2, 2009 OZ7, 2009 OC, 2009 NH, 2009 NE, 2009 NA, 2009 ML1, 2009 LX, 2009 KL2, 2009 JK1, 2009 HB82, 2002 NW16, 2002 NP1 |
| I20 | Rio Cuarto Obs. in Argentina, 3 in MPEC 2009-Q53 -- 2005 TE15, 2004 RU10, 2002 RQ25 |
| H36 | Sandlot Obs. in Kansas, 1 in MPEC 2009-Q52 -- 2009 QC23 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2009-Q53 -- 2009 QW1, 2009 QJ2, 2009 PY |
| 510 | Siegen Obs. in Germany, 3 in MPEC 2009-Q53 -- 2009 QJ9, 2002 NP1, 433 |
| A78 | Stia Obs. in Italy, 2 in MPEC 2009-Q53 -- 2009 LX, 54401 |
| I19 | Tanti Obs. in Argentina, 2 in MPEC 2009-Q53 -- 2002 RQ25, 2000 CO101 |
| B01 | Taunus Obs. in Germany, 1 in MPEC 2009-Q53 -- 2009 QQ8 |
| H53 | Thompsonville Obs. in Illinois, 6 in MPEC 2009-Q53 -- 2009 OG, 2009 NE, 2009 MX6, 217390, 5626, 2100 |
| C00 | Velikie Luki Obs., 2 in MPEC 2009-Q53 -- 16834, 3200 |
| A48 | Verona Obs. in Italy, 2 in MPEC 2009-Q53 -- 2009 QJ9, 2009 NE |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 24 August '09
| 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 QL8 | NEODyS | 1325 | R E M O V E D | - | |||||
| JPL Sentry | 1325 | R E M O V E D | JPL: Risk listing removed at 0850 UTC. | ||||||
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 24 August '09
Times are UTC for when items were noted or added by The Tracking News.
| 1325 | Noted that JPL Sentry has removed 2009 QL8 as an impact risk - see above Noted that NEODyS has removed 2009 QL8 as an impact risk - see above Grabbed MPEC 2009-Q53 - Daily Orbit Update - see above |
| 0447 | Grabbed MPEC 2009-Q52 - 2009 QC23 - see above |