Contents on 18 September '08
- Radar Astrometry -- one object
- IAU Minor Planet Center
- NEOCP Activity -- one listing: 1 updated
- New MPECs -- seven MPECs
- Observers -- eight 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, 
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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.
Radar Astrometry on 18 September '08
Radar observation of one object
The JPL Solar System Dynamics Group Radar Astrometry database has added the following small-body radar observing work:
Data addition noted at 2008 UTC when the database was dated 18 Sept.
- 1862 Apollo (1932 HA) from Arecibo (2005 Oct. 29.58 velocity, 30.57 range & 2005 Nov. 2.51 range) and Goldstone DSS-14 70m antenna (2005 Nov. 13.70 range)
NEOCP Activity on 18 September '08
The MPC's NEO Confirmation Page has 1 listing: 1 updated
When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. So far The Tracking News has counted a total of two objects listed on the NEOCP at some point today.
New MPECs on 18 September '08
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been seven MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-S03 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2008-S04 time-stamped "18:51 UT" - Observable Comets - see below
- MPEC 2008-S05 time-stamped "19:56 UT" - Distant Minor Planets - see below
- MPEC 2008-S06 time-stamped "20:04 UT" - Atens and Apollos - see below
- MPEC 2008-S07 time-stamped "20:04 UT" - Amors - see below
- MPEC 2008-S08 time-stamped "20:04 UT" - Unusual Minor Planets - see below
- MPEC 2008-S09 time-stamped "20:04 UT" - PHAs
MPEC 2008-S09 - "20:04 UT" - PHAs
MPEC 2008-S08 - "20:04 UT" - Unusual Minor Planets
MPEC 2008-S07 - "20:04 UT" - Amors
MPEC 2008-S06 - "20:04 UT" - Atens and Apollos
MPEC 2008-S05 - "19:56 UT" - Distant Minor Planets
MPEC 2008-S04 - "18:51 UT" - Observable Comets
<< DOU on 18 Sept. '08 >> MPEC 2008-S03 - "06:08 UT" - Daily Orbit Update
- Observations of recently (no longer) risk-listed objects
- K08R01H 2008 RH1 (small asteroid, arc=13 days, H=22.5 ~107m) from Astronomical Research Obs. (ARO) (Sept. 17.16-18p3)
- K08Q03T 2008 QT3 (arc=23 days, H=18.4 ~708m) from ARO (Sept. 17.06-07p3)
- K08Q00Y 2008 QY (arc=27 days, H=18.5 ~676m) from ARO (Sept. 17.38-40p3)
- Observations of small asteroids (H>22.0)
- K08R24W 2008 RW24 (arc=11 days, H=22.8 ~93m) from ARO (Sept. 17.24-25p4)
- K08R24T 2008 RT24 (arc=11 days, H=24.4 ~45m) from ARO (Sept. 17.23p3)
- K08R01E 2008 RE1 (arc=15 days, H=22.8 ~93m) from ARO (Sept. 17.24-25p4)
- K08Q11W 2008 QW11 (arc=22 days, H=23.4 ~71m) from ARO (Sept. 17.31-33p3)
- Observations of other objects
- K08R80E 2008 RE80 (arc=6 days, H=18.2 ~776m) from ARO (Sept. 17.21-22p3)
- K08R26T 2008 RT26 (arc=10 days, H=19.2 ~490m) from ARO (Sept. 17.36-37p3)
- K08R24Z 2008 RZ24 (arc=10 days, H=20.0 ~339m) from ARO (Sept. 17.26-27p4)
- K08R24Y 2008 RY24 (arc=3 opp, H=17.8 ~933m) from ARO (Sept. 17.07-09p4 & 17.21-22p2)
- K08R24X 2008 RX24 (arc=11 days, H=21.2 ~195m) from ARO (Sept. 17.20p3)
- K08R24R 2008 RR24 (arc=11 days, H=21.2 ~195m) from ARO (Sept. 17.06p4)
- K08R24Q 2008 RQ24 (arc=12 days, H=20.6 ~257m) from ARO (Sept. 17.23-24p4)
- K08R00T 2008 RT (arc=16 days, H=19.5 ~426m) from ARO (Sept. 17.34-35p3)
- K08Q01D 2008 QD1 (arc=25 days, H=18.9 ~562m) from ARO (Sept. 17.25-27p3)
- K08P09H 2008 PH9 (Q=4.545 AU, arc=42 days, H=16.3 ~1.86 km) from the Siding Spring Survey (SSS) (Sept. 17.46-47p2)
- K08P03L 2008 PL3 (arc=44 days, H=19.4 ~446m) from ARO (Sept. 17.16-17p3)
- K08M01R 2008 MR1 (arc=3 opp, H=18.4 ~708m) from ARO (Sept. 17.29-30p3)
- K08M01H 2008 MH1 (Q=4.263 AU, arc=81 days, H=18.4 ~708m) from ARO (Sept. 17.06-07p4)
- K07Y56O 2007 YO56 (arc=2 opp, H=20.1 ~323m) from ARO (Sept. 17.13-14p4)
- K07T66E 2007 TE66 (arc=2 opp, H=21.4 ~178m) from ARO (Sept. 17.13-14p3)
- K07L00L 2007 LL (arc=2 opp, H=20.3 ~295m) from Smolyan Obs. (June 26.85p4 & 27.92-93p5)
- K05W55S 2005 WS55 (arc=4 opp, H=16.0 ~2.14 km, q=1.108 AU) from ARO (Sept. 17.19-20p3)
- K05T51Z 2005 TZ51 (arc=3 opp, H=17.9 ~891m) from ARO (Sept. 17.15-16p3)
- K05T45U 2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from Smolyan Obs. (June 27.95p5)
- K04S56B 2004 SB56 (arc=2 opp, H=19.3 ~467m) from ARO (Sept. 17.11-12p4)
- K04E20N 2004 EN20 (i=40.1°, arc=3 opp, H=18.4 ~708m) from ARO (Sept. 17.35-36p4)
- K02V17V 2002 VV17 (arc=4 opp, H=19.9 ~355m) from ARO (Sept. 17.12p4) and Celbridge Obs. (Sept. 17.99p1)
- K01XQ6W 2001 XW266 (arc=3 opp, H=19.5 ~426m) from Smolyan Obs. (June 27.96-99p13)
- K01U16Z 2001 UZ16 (arc=3 opp, H=19.4 ~446m) from Celbridge Obs. (Sept. 17.96p1)
- K01T01W 2001 TW1 (arc=5 opp, H=19.1 ~513m) from ARO (Sept. 17.40-42p5)
- K01S10G 2001 SG10 (arc=5 opp, H=20.3 ~295m) from ARO (Sept. 17.36-37p5)
- K01S09K 2001 SK9 (q=0.378 AU, arc=4 opp, H=18.1 ~812m) from Celbridge Obs. (Sept. 18.00p1)
- K01QF3L 2001 QL153 (arc=2 opp, H=19.1 ~513m) from ARO (Sept. 17.11-12p3)
- K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from David Tholen's team on Mauna Kea (Aug. 13.54p2)
- J98S70J 1998 SJ70 (arc=3 opp, H=18.4 ~708m) from ARO (Sept. 17.28-29p3)
- G4400 164400 2005 GN59 from Petit Jean Mtn. South Obs. (PJMSO) (Sept. 17.26-27p5)
- G2679 162679 2000 TK1 from ARO (Sept. 17.31-33p4)
- 68031 68031 2000 YK29 from ARO (Sept. 17.33-35p4)
- 08567 8567 1996 HW1 from Smolyan Obs. (Sept. 8.99-00p20)
Observers on 18 September '08
Eight observing facilities appear in today's MPEC.
| Code | Observer / observatory |
|---|---|
| 251 | Arecibo in Puerto Rico, 1 in radar -- 1862 |
| H55 | Astronomical Research Obs. (ARO) in Illinois, 32 in MPEC 2008-S03 -- 2008 RZ24, 2008 RY24, 2008 RX24, 2008 RW24, 2008 RT26, 2008 RT24, 2008 RT, 2008 RR24, 2008 RQ24, 2008 RH1, 2008 RE80, 2008 RE1, 2008 QY, 2008 QW11, 2008 QT3, 2008 QD1, 2008 PL3, 2008 MR1, 2008 MH1, 2007 YO56, 2007 TE66, 2005 WS55, 2005 TZ51, 2004 SB56, 2004 EN20, 2002 VV17, 2001 TW1, 2001 SG10, 2001 QL153, 1998 SJ70, 68031, 162679 |
| J65 | Celbridge Obs. in Ireland, 3 in MPEC 2008-S03 -- 2002 VV17, 2001 UZ16, 2001 SK9 |
| 253 | Goldstone DSS-14 70m antenna in southern California, 1 in radar -- 1862 |
| 5682 | David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2008-S03 -- 2000 CO101 |
| H45 | Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2008-S03 -- 164400 |
| E12 | Siding Spring Survey in New South Wales, 1 in MPEC 2008-S03 -- 2008 PH9 |
| 071 | Smolyan Obs. in Bulgaria, 4 in MPEC 2008-S03 -- 2007 LL, 2005 TU45, 2001 XW266, 8567 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 18 September '08
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 18 September '08
Times are UTC for when items were noted or added by The Tracking News.
| 2008 | Noted Radar Astrometry database addition - see above |
| 1929 | Grabbed MPEC 2008-S05 - Distant Minor Planets - see above Grabbed MPEC 2008-S06 - Atens and Apollos - see above Grabbed MPEC 2008-S07 - Amors - see above Grabbed MPEC 2008-S08 - Unusual Minor Planets - see above Grabbed MPEC 2008-S09 - PHAs - see above |
| 1857 | Grabbed MPEC 2008-S04 - Observable Comets - see above |
| 1520 | Grabbed MPEC 2008-S03 - Daily Orbit Update - see above |
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