Contents on 23 June '08
- IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- one MPEC
- Observers -- eight 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 23 June '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 on June 18th.
New MPECs on 23 June '08
Minor Planet Electronic Circulars
As of last check at 2357 UTC, there has been one MPEC issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
<< DOU on 23 June '08 >> MPEC 2008-M24 - "06:06 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K08L00A 2008 LA (small asteroid, arc=22 days, H=23.2 ~78m) from Great Shefford Obs. (June 22.94-95p3)
- Observations of other objects
- K08J35T 2008 JT35 (Q=4.080 AU, arc=49 days, H=21.1 ~204m) from Balzaretto Obs. (June 21.92-93p4), Mirasteilas Obs. (June 22.88-90p3), and Capannoli Obs. (June 22.99-02p4)
- K08H66E 2008 HE66 (arc=54 days, H=21.7 ~155m) from Paus Obs. (June 22.90p1)
- K07L00L 2007 LL (arc=2 opp, H=20.5 ~269m) from Capannoli Obs. (June 23.04-05p2)
- K05T45U 2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from Atlante Obs. (June 23.09-10p3)
- K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Capannoli Obs. (June 22.95-97p2)
- K00AK5D 2000 AD205 (arc=2 opp, H=18.6 ~645m) from Gualba Obs. (June 19.92-93p2) and Balzaretto Obs. (June 21.90-91p3)
- D7170 137170 1999 HF1 from Balzaretto Obs. (June 21.94p3)
- 35107 35107 1991 VH from Modra Obs. (June 19.89-93p3, 20.93-94p3, 21.92-94p3 & 22.97-98p3) and Balzaretto Obs. (June 21.94-95p5)
- 07889 7889 1994 LX from Mirasteilas Obs. (June 22.94-96p3)
Observers on 23 June '08
Eight observing facilities appear in today's MPEC.
| Code | Observer / observatory |
|---|---|
| J51 | Atlante Obs. in the Canary Islands, 1 in MPEC 2008-M24 -- 2005 TU45 |
| A81 | Balzaretto Obs. in Italy, 4 in MPEC 2008-M24 -- 2008 JT35, 2000 AD205, 35107, 137170 |
| B09 | Capannoli Obs. in Italy, 3 in MPEC 2008-M24 -- 2008 JT35, 2007 LL, 2005 NB7 |
| J95 | Great Shefford Obs. in England, 1 in MPEC 2008-M24 -- 2008 LA |
| 442 | Gualba Obs. in Spain, 1 in MPEC 2008-M24 -- 2000 AD205 |
| B67 | Mirasteilas Obs. in Switzerland, 2 in MPEC 2008-M24 -- 2008 JT35, 7889 |
| 118 | Modra Obs. in Slovakia, 1 in MPEC 2008-M24 -- 35107 |
| B49 | Paus Obs. in Spain, 1 in MPEC 2008-M24 -- 2008 HE66 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 23 June '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 LA | NEODyS | 1452 | 2058-2079 | 6 | 7.02e-05 | -3.33 | -3.33 | 0 | NEODyS: "Based on 72 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/22.949." |
| JPL Sentry | 1451 | 2058-2107 | 4 | 7.2e-05 | -3.32 | -3.32 | 0 | JPL: "Analysis based on 72 observations spanning 21.779 days (2008-Jun-01.16922 to 2008-Jun-22.948)." Diameter approximately 0.078 km. from mean, weighted H=23.2. | |
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 23 June '08
Times are UTC for when items were noted or added by The Tracking News.
| 1452 | Noted that NEODyS has updated its 2008 LA risk assessment - see above |
| 1451 | Noted that JPL Sentry has updated its 2008 LA risk assessment - see above Grabbed MPEC 2008-M24 - Daily Orbit Update - see above |