Contents on 16 July '08
- IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- two MPECs
- Observers -- six observing facilities
- Impact Risk Monitoring -- two objects
- 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 16 July '08
The MPC's NEO Confirmation Page is currently empty
The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (checked at 2357 UTC). It was last noted active yesterday.
New MPECs on 16 July '08
Minor Planet Electronic Circulars
As of last check at 2357 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-O01 time-stamped "06:07 UT" - Daily Orbit Update - see below
- MPEC 2008-O02 time-stamped "17:32 UT" - 2008 KV42
MPEC 2008-O02 - "17:32 UT" - 2008 KV42
- K08K42V 2008 KV42 (i=103.5°, q=20.217 AU, Q=71.760 AU, H=8.8 ~58.9 km) was discovered at 0827 UT on 31 May from Mauna Kea, where it was observed at May 31.35-43p3 at r=23.7-8. The discovery was confirmed by Cerro Tololo Inter-American Obs. (CTIO) (June 8.21p1, 8.26p1, 9.18p1 & July 8.12-15p5) and Whipple Obs. (June 23.37p1, 23.41p1, 24.35p1 & 24.41p1).
<< DOU on 16 July '08 >> MPEC 2008-O01 - "06:07 UT" - Daily Orbit Update
- Observations of small asteroids (H>22.0)
- K08N00X 2008 NX (arc=8 days, H=25.0 ~34m) from Schiaparelli Obs. (July 10.05-06p6)
- Observations of other objects
- K05T45U 2005 TU45 (arc=3 opp, H=17.2 ~1.23 km) from Petit Jean Mtn. South Obs. (PJMSO) (July 15.34p10)
- K03O04B 2003 OB4 (Q=4.516 AU, arc=2 opp, H=19.2 ~490m) from PJMSO (July 15.34-35p10)
- K01T45A 2001 TA45 (arc=4 opp, H=19.1 ~513m) from PJMSO (July 15.28-29p10)
- K00U16T 2000 UT16 (arc=4 opp, H=16.6 ~1.62 km) from Schiaparelli Obs. (July 9.91-92p6)
- H3689 173689 2001 PK9 from PJMSO (July 15.37-38p10)
- 11398 11398 1998 YP11 from PJMSO (July 15.35-37p10)
- 08567 8567 1996 HW1 from PJMSO (July 15.38p10)
- 07889 7889 1994 LX from Linceo Obs. (July 14.89-90p6)
Observers on 16 July '08
Six observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| 807 | Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2008-O02 -- 2008 KV42 |
| J59 | Linceo Obs. in Spain, 1 in MPEC 2008-O01 -- 7889 |
| 568 | Mauna Kea in Hawaii, 1 in MPEC 2008-O02 -- 2008 KV42 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 6 in MPEC 2008-O01 -- 2005 TU45, 2003 OB4, 2001 TA45, 173689, 11398, 8567 |
| 204 | Schiaparelli Obs. in Italy, 2 in MPEC 2008-O01 -- 2008 NX, 2000 UT16 |
| 696 | Whipple Obs. in Arizona, 1 in MPEC 2008-O02 -- 2008 KV42 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 16 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 NQ3 | JPL Sentry | 0129 | 2085 | 1 | 2.6e-10 | -7.24 | -7.24 | 0 | JPL: "Analysis based on 19 observations spanning 1.1081 days (2008-Jul-14.71715 to 2008-Jul-15.82529)." Diameter approximately 0.310 km. from mean, weighted H=20.2. |
| 2008 NO3 | NEODyS | 1454 | 2027-2082 | 5 | 6.44e-10 | -5.63 | -5.89 | 0 | NEODyS: "Based on 9 optical observations (of which 0 are rejected as outliers) from 2008/07/14.365 to 2008/07/15.391." |
| JPL Sentry | 0129 | 2010-2105 | 14 | 1.1e-08 | -4.51 | -4.60 | 0 | JPL: "Analysis based on 9 observations spanning 1.0263 days (2008-Jul-14.36382 to 2008-Jul-15.39011)." Diameter approximately 0.467 km. from mean, weighted H=19.3. | |
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 16 July '08
Times are UTC for when items were noted or added by The Tracking News.
| 1859 | Grabbed MPEC 2008-O02 - 2008 KV42 - see above |
| 1454 | Noted that NEODyS has posted 2008 NO3 as an impact risk - see above Grabbed MPEC 2008-O01 - Daily Orbit Update - see above |
| 0128 | Noted that JPL Sentry has posted 2008 NO3 as an impact risk - see above Noted that JPL Sentry has posted 2008 NQ3 as an impact risk - see above |
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