Contents on 20 May '08
- IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- two MPECs
- Observers -- six 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 20 May '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 (last checked at 2354 UTC).
New MPECs on 20 May '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-K16 time-stamped "04:39 UT" - 2005 CF41 = 2008 JN20 - see below
- MPEC 2008-K17 time-stamped "06:08 UT" - Daily Orbit Update
<< DOU on 20 May '08 >> MPEC 2008-K17 - "06:08 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K08J24L 2008 JL24 (small asteroid, arc=5 days, H=29.6 ~4m) from Faulkes Telescope South (May 16.61-62p2)
- Observations of recently (no longer) risk-listed objects
- K08J19V 2008 JV19 (arc=11 days, H=20.7 ~245m) from Astronomical Research Obs. (ARO) (May 19.08-10p3)
- K08H03D 2008 HD3 (i=52.0°, arc=21 days, H=19.8 ~371m) from ARO (May 19.24-25p3)
- Observations of small asteroids (H>22.0)
- K08J26S 2008 JS26 (arc=5 days, H=23.6 ~65m) from ARO (May 19.26-27p3)
- K08J14R 2008 JR14 (arc=13 days, H=25.1 ~32m) from ARO (May 19.21-22p3)
- K08J02U 2008 JU2 (arc=17 days, H=22.8 ~93m) from Greiner Research Obs. (GRO) (May 19.19p3), Petit Jean Mtn. South Obs. (PJMSO) (May 19.26-27p8), and McCarthy Obs. (May 20.21-23p3)
- K08GB0C 2008 GC110 (arc=35 days, H=22.2 ~123m) from ARO (May 19.12-14p3)
- K08GB0A 2008 GA110 (Q=4.497 AU, arc=35 days, H=22.1 ~129m) from ARO (May 19.25-26p3)
- K08G20O 2008 GO20 (arc=40 days, H=22.3 ~117m) from ARO (May 19.10-11p3)
- K08G03R 2008 GR3 (arc=42 days, H=25.1 ~32m) from ARO (May 19.27-28p3)
- Observations of other objects
- K08J20M 2008 JM20 (arc=9 days, H=21.0 ~214m) from ARO (May 19.21-22p3)
- K08J19S 2008 JS19 (arc=11 days, H=18.9 ~562m) from ARO (May 19.12-13p3)
- K08J14Q 2008 JQ14 (arc=14 days, H=19.2 ~490m) from ARO (May 19.09-10p3)
- K08J14P 2008 JP14 (arc=18 days, H=19.4 ~446m) from GRO (May 19.16-17p6)
- K08J14O 2008 JO14 (arc=12 days, H=21.1 ~204m) from ARO (May 19.18-20p3)
- K08J07Z 2008 JZ7 (Q=4.372 AU, arc=14 days, H=18.5 ~676m) from ARO (May 19.11-12p5)
- K08J00O 2008 JO (arc=17 days, H=18.3 ~741m) from ARO (May 19.08-09p3)
- K08J00N 2008 JN (q=0.211 AU, arc=18 days, H=20.7 ~245m) from ARO (May 19.13-14p3)
- K08J00J 2008 JJ (i=44.6°, arc=19 days, H=19.1 ~513m) from GRO (May 19.18p7)
- K08J00G 2008 JG (arc=18 days, H=20.8 ~234m) from ARO (May 19.27-28p3)
- K08H03S 2008 HS3 (arc=20 days, H=21.6 ~162m) from GRO (May 19.12-13p10), ARO (May 19.22-23p4), and McCarthy Obs. (May 20.10-11p3)
- K08GB0H 2008 GH110 (arc=35 days, H=19.8 ~371m) from ARO (May 19.23-25p3)
- K08G03V 2008 GV3 (i=72.9°, arc=42 days, H=18.5 ~676m) from ARO (May 19.17-18p3)
- K08G00X 2008 GX (arc=45 days, H=19.4 ~446m) from ARO (May 18.09-10p3)
- K08C23P 2008 CP23 (arc=107 days, H=19.6 ~407m) from ARO (May 18.11-12p2)
- K07VI3R 2007 VR183 (Q=4.353 AU, arc=248 days, H=17.5 ~1.07 km) from GRO (May 19.15p9) and ARO (May 19.15-16p3)
- K07V04Q 2007 VQ4 (arc=3 opp, H=16.1 ~2.04 km, q=1.271 AU) from GRO (May 19.13-14p9)
- K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from GRO (May 19.15-16p10)
- K05N06Z 2005 NZ6 (q=0.248 AU, arc=3 opp, H=17.5 ~1.07 km) from GRO (May 19.11-12p10)
- K02J00C 2002 JC (i=40.9°, arc=6 opp, H=17.2 ~1.23 km) from GRO (May 19.12p9)
- K00AK5D 2000 AD205 (arc=2 opp, H=18.4 ~708m) from PJMSO (May 19.27-28p6)
- F4278 154278 2002 TB9 from PJMSO (May 19.32-33p5)
- 35107 35107 1991 VH from PJMSO (May 19.28-29p5)
MPEC 2008-K16 - "04:39 UT" - 2005 CF41 = 2008 JN20
- K08J20N 2008 JN20 from Schiaparelli Obs. (May 13.90-91p3)
- K05C41F 2005 CF41 (H=18.5 ~676m)
Observers on 20 May '08
Six observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| H55 | Astronomical Research Obs. (ARO) in Illinois, 22 in MPEC 2008-K17 -- 2008 JZ7, 2008 JV19, 2008 JS26, 2008 JS19, 2008 JR14, 2008 JQ14, 2008 JO14, 2008 JO, 2008 JN, 2008 JM20, 2008 JG, 2008 HS3, 2008 HD3, 2008 GX, 2008 GV3, 2008 GR3, 2008 GO20, 2008 GH110, 2008 GC110, 2008 GA110, 2008 CP23, 2007 VR183 |
| E10 | Faulkes Telescope South in New South Wales, 1 in MPEC 2008-K17 -- 2008 JL24 |
| H51 | Greiner Research Obs. (GRO) in Wisconsin, 9 in MPEC 2008-K17 -- 2008 JU2, 2008 JP14, 2008 JJ, 2008 HS3, 2007 VR183, 2007 VQ4, 2005 NZ6, 2005 NB7, 2002 JC |
| 932 | McCarthy Obs. in Connecticut, 2 in MPEC 2008-K17 -- 2008 JU2, 2008 HS3 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPEC 2008-K17 -- 2008 JU2, 2000 AD205, 35107, 154278 |
| 204 | Schiaparelli Obs. in Italy, 1 in MPEC 2008-K16 -- 2008 JN20 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 20 May '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 JL24 | JPL Sentry | 1330 | 2091 | 1 | 3.6e-07 | -9.10 | -9.10 | 0 | JPL: "Analysis based on 88 observations spanning 5.3657 days (2008-May-11.25353 to 2008-May-16.61927)." Diameter approximately 0.004 km. from mean, weighted H=29.6. |
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 20 May '08
Times are UTC for when items were noted or added by The Tracking News.
| 1330 | Noted that JPL Sentry has updated its 2008 JL24 risk assessment - see above Grabbed MPEC 2008-K16 - 2005 CF41 = 2008 JN20 - see above Grabbed MPEC 2008-K17 - Daily Orbit Update - see above |
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