Contents on 26 July '08
- IAU Minor Planet Center
- NEOCP Activity -- four listings: 4 updated
- New MPECs -- three MPECs
- Observers -- twelve 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
- 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 26 July '08
The MPC's NEO Confirmation Page has 4 listings: 4 updated
When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four updated listings. Of these, one was a "one nighter." So far The Tracking News has counted a total of seven 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 26 July '08
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been three MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-O28 time-stamped "06:07 UT" - Daily Orbit Update - see below
- MPEC 2008-O29 time-stamped "14:20 UT" - 2003 JC11 = 2008 JL14 - see below
- MPEC 2008-O30 time-stamped "16:12 UT" - 2008 JS14
MPEC 2008-O30 - "16:12 UT" - 2008 JS14
- K08J14S 2008 JS14 (Centaur, q=2.998 AU, Q=20.453 AU, H=13.2 ~7.76 km) was discovered at 1839 UT on 6 May by the Siding Spring Survey (SSS), which observed it at May 6.78p1, 7.80p1, 8.74p1, 31.72p1, July 26.56p1, and 26.62p1. The discovery was confirmed by the Catalina Sky Survey (CSS) (June 10.40-42p4 & July 25.36-38p4).
MPEC 2008-O29 - "14:20 UT" - 2003 JC11 = 2008 JL14
- K08J14L 2008 JL14 from the Spacewatch 0.9m telescope (May 28.28-32p3 & June 1.35-39p3)
- K03J11C 2003 JC11 (Q=4.556 AU, H=18.9 ~562m)
<< DOU on 26 July '08 >> MPEC 2008-O28 - "06:07 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K08N03O 2008 NO3 (Q=4.670 AU, arc=11 days, H=18.7 ~616m) from SSS (July 25.36p2)
- Observations of recently (no longer) risk-listed objects
- K08N03Q 2008 NQ3 (arc=11 days, H=20.3 ~295m) from SSS (July 25.79-81p4)
- Observations of small asteroids (H>22.0)
- K08E00L 2008 EL (arc=32 days, H=22.2 ~123m) from Richard Miles via Faulkes Telescope North (March 10.44-46p19) and Faulkes Telescope South (March 15.46-48p4)
- Observations of other objects
- K08M01U 2008 MU1 (i=40.8°, arc=25 days, H=19.6 ~407m) from Petit Jean Mtn. South Obs. (PJMSO) (July 25.28-29p7) and Eschenberg Obs. (July 25.85-86p6)
- K08M00Z 2008 MZ (Q=4.210 AU, arc=40 days, H=18.0 ~851m) from Los Molinos Obs. (July 26.03-06p6)
- K08J14L 2008 JL14 (Q=4.554 AU, arc=29 days, H=18.5 ~676m) from Spacewatch 0.9m (May 28.28-32p3 & June 1.35-39p3)
- K08J08A 2008 JA8 (arc=81 days, H=18.0 ~851m) from Tiki Obs. (July 25.59p1 & 25.63p1)
- K08E97Z 2008 EZ97 (arc=133 days, H=17.9 ~891m) from Los Molinos Obs. (July 26.08-10p6)
- K08D00V 2008 DV (arc=150 days, H=18.3 ~741m) from SSS (July 25.44p2)
- K08B18T 2008 BT18 (arc=4 opp, H=18.3 ~741m) from SSS (July 25.84p2)
- K07M04C 2007 MC4 (arc=2 opp, H=21.1 ~204m) from SSS (July 25.57-60p4)
- K07L00L 2007 LL (arc=2 opp, H=20.5 ~269m) from PJMSO (July 25.20-21p6)
- K05R34C 2005 RC34 (arc=2 opp, H=19.7 ~389m) from Hamamatsu-Yuto Obs. (July 23.51-54p5, 23.61-62p6 & 25.50-57p11), PJMSO (July 25.30p8), and Eschenberg Obs. (July 25.83p7)
- K03X11E 2003 XE11 (arc=4 opp, H=17.6 ~1.02 km) from PJMSO (July 25.22-23p5)
- K03O04B 2003 OB4 (Q=4.516 AU, arc=2 opp, H=19.2 ~490m) from PJMSO (July 25.25-28p5)
- K03B35T 2003 BT35 (i=57.3°, arc=3 opp, H=18.7 ~616m) from Mirasteilas Obs. (July 25.96-97p2)
- K02S41S 2002 SS41 (i=63.7°, arc=3 opp, H=17.1 ~1.29 km) from Bergen-Enkheim Obs. (July 24.93-99p3)
- J94A01W 1994 AW1 (arc=3 opp, H=17.5 ~1.07 km) from SSS (July 25.47-48p4)
- I9008 189008 1996 FR3 from Los Molinos Obs. (July 26.18p1)
- H3689 173689 2001 PK9 from PJMSO (July 25.32-34p5)
- G2510 162510 2000 QW69 from SSS (July 25.82-83p4)
- 90403 90403 2003 YE45 from PJMSO (July 25.24p5)
- 35107 35107 1991 VH from PJMSO (July 25.22p5)
- 08567 8567 1996 HW1 from Eschenberg Obs. (July 25.84p7)
- 07092 7092 Cadmus (1992 LC) from SSS (July 25.50-52p4)
- 05836 5836 1993 MF from SSS (July 25.41-43p4)
- 01864 1864 Daedalus (1971 FA) from SSS (July 25.38-39p4)
- 01685 1685 Toro (1948 OA) from SSS (July 25.38-39p3)
Observers on 26 July '08
Twelve observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| A74 | Bergen-Enkheim Obs. in Germany, 1 in MPEC 2008-O28 -- 2002 SS41 |
| 703 | Catalina Sky Survey in Arizona, 1 in MPEC 2008-O30 -- 2008 JS14 |
| 151 | Eschenberg Obs. in Switzerland, 3 in MPEC 2008-O28 -- 2008 MU1, 2005 RC34, 8567 |
| F656 | Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2008-O28 -- 2008 EL |
| E10 | Faulkes Telescope South in New South Wales, 1 in MPEC 2008-O28 -- 2008 EL |
| 379 | Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2008-O28 -- 2005 RC34 |
| 844 | Los Molinos Obs. in Uruguay, 3 in MPEC 2008-O28 -- 2008 MZ, 2008 EZ97, 189008 |
| B67 | Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-O28 -- 2003 BT35 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPEC 2008-O28 -- 2008 MU1, 2007 LL, 2005 RC34, 2003 XE11, 2003 OB4, 90403, 35107, 173689 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 12 in MPECs 2008-O28 & 2008-O30 -- 2008 NQ3, 2008 NO3, 2008 JS14, 2008 DV, 2008 BT18, 2007 MC4, 1994 AW1, 162510, 7092, 5836, 1864, 1685 |
| 691 | Spacewatch 0.9m telescope in Arizona, 1 in MPECs 2008-O28 & 2008-O29 -- 2008 JL14 |
| F85 | Tiki Obs. in Tahiti, 1 in MPEC 2008-O28 -- 2008 JA8 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 26 July '08
| 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 |
| 2008 NO3 | JPL Sentry | 1544 | 2099 | 1 | 9.3e-09 | -5.22 | -5.22 | 0 | JPL: "Analysis based on 18 observations spanning 11.001 days (2008-Jul-14.36382 to 2008-Jul-25.36475)." Diameter approximately 0.620 km. from mean, weighted H=18.7. |
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 26 July '08
Times are UTC for when items were noted or added by The Tracking News.
| 1642 | Grabbed MPEC 2008-O30 - 2008 JS14 - see above |
| 1544 | Noted that JPL Sentry has updated its 2008 NO3 risk assessment - see above Grabbed MPEC 2008-O28 - Daily Orbit Update - see above Grabbed MPEC 2008-O29 - 2003 JC11 = 2008 JL14 - see above |
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