Contents on 21 August '08
- IAU Minor Planet Center
- Observers -- eight observing facilities
- Impact Risk Monitoring -- one object
- 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
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 21 August '08
The MPC's NEO Confirmation Page has 1 listing: 1 updated
When last checked at 2359 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter." So far The Tracking News has counted a total of two 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 21 August '08
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-Q13 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2008-Q14 time-stamped "21:35 UT" - 2008 QC
MPEC 2008-Q14 - "21:35 UT" - 2008 QC
- K08Q00C 2008 QC (H=20.9 ~224m) was discovered at 1843 UT on 19 Aug. by the Siding Spring Survey (SSS), which observed it at Aug. 19.78-81p4 and 20.80p4. The discovery was confirmed by Hibiscus Obs. (Aug. 21.60-62p3).
- Observations of risk-listed objects
- K08O13N 2008 ON13 (arc=13 days, H=19.9 ~355m) from David Tholen's team on Mauna Kea (Aug. 13.41p2)
- Observations of other objects
- K08O00N 2008 ON (arc=25 days, H=20.4 ~282m) from Balzaretto Obs. (Aug. 19.91-93p3)
- K08N00B 2008 NB (arc=49 days, H=19.1 ~513m) from Astronomical Research Obs. (ARO) (Aug. 19.29-30p3)
- K08M01R 2008 MR1 (arc=50 days, H=18.5 ~676m) from ARO (Aug. 19.28p4)
- K06T01C 2006 TC1 (arc=3 opp, H=18.9 ~562m) from the Spacewatch 0.9m telescope (Aug. 20.39-42p3)
- K03F06Q 2003 FQ6 (arc=3 opp, H=20.9 ~224m) from ARO (Aug. 19.26-27p3)
- K00P09Q 2000 PQ9 (arc=5 opp, H=18.2 ~776m) from ARO (Aug. 19.34-36p3)
- G4400 164400 2005 GN59 from Stonegate Obs. (Aug. 20.30-33p2 & 20.39-41p2)
- F2679 152679 1998 KU2 from SSS (Aug. 20.41-42p4)
- D7175 137175 1999 JA11 from ARO (Aug. 19.40-41p4)
- 52761 52761 1998 MN14 from ARO (Aug. 19.37-39p3)
- 31221 31221 1998 BP26 from ARO (Aug. 19.31-33p3)
- 08567 8567 1996 HW1 from Taurus-1 Obs. (Aug. 19.83-01p90)
- 04179 4179 Toutatis (1989 AC) from Balzaretto Obs. (Aug. 19.89-90p5)
- 02201 2201 Oljato (1947 XC) from Spacewatch 0.9m (Aug. 20.45-47p3)
- 01917 1917 Cuyo (1968 AA) from Taurus-1 Obs. (Aug. 20.02-05p46)
Observers on 21 August '08
Eight observing facilities appear in today's MPECs.
|Code||Observer / observatory|
|H55||Astronomical Research Obs. (ARO) in Illinois, 7 in MPEC 2008-Q13 -- 2008 NB, 2008 MR1, 2003 FQ6, 2000 PQ9, 52761, 31221, 137175|
|A81||Balzaretto Obs. in Italy, 2 in MPEC 2008-Q13 -- 2008 ON, 4179|
|F84||Hibiscus Obs. in Tahiti, 1 in MPEC 2008-Q14 -- 2008 QC|
|5682||David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-Q13 -- 2008 ON13|
|E12||Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2008-Q13 & 2008-Q14 -- 2008 QC, 152679|
|691||Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2008-Q13 -- 2006 TC1, 2201|
|H67||Stonegate Obs. in Michigan, 1 in MPEC 2008-Q13 -- 164400|
|A98||Taurus-1 Obs. in Belarus, 2 in MPEC 2008-Q13 -- 8567, 1917|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 21 August '08
Notes for Today's Latest Risk Assessments
|2008 ON13||JPL Sentry||1516||R E M O V E D||JPL: Risk listing removed at 0853 UTC.|
|NEODyS||1516||R E M O V E D||-|
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 21 August '08
Times are UTC for when items were noted or added by The Tracking News.
|2211||Grabbed MPEC 2008-Q14 - 2008 QC - see above|
|1516||Noted that JPL Sentry has removed 2008 ON13 as an impact risk - see above|
Noted that NEODyS has removed 2008 ON13 as an impact risk - see above
Grabbed MPEC 2008-Q13 - Daily Orbit Update - see above