Contents on 14 May '08
- IAU Minor Planet Center
- NEOCP Activity -- seven listings: 7 updated
- New MPECs -- two MPECs
- Observers -- sixteen 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 14 May '08
The MPC's NEO Confirmation Page has 7 listings: 7 updated
When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had seven updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of eleven 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 14 May '08
Minor Planet Electronic Circulars
As of last check at 2354 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-J70 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2008-J71 time-stamped "16:32 UT" - 2008 JM26
MPEC 2008-J71 - "16:32 UT" - 2008 JM26
- K08J26M 2008 JM26 (small asteroid, Earth MOID=8.9 LD, H=25.6 ~26m) was discovered at 0640 UT on 13 May by the Mt. Lemmon Survey (MLS), which observed it at May 13.28-33p7 and 14.23-25p4. The discovery was confirmed by Gaisberg Obs. (May 13.92-93p2) and the Spacewatch 1.8m telescope (May 14.22-23p3).
<< DOU on 14 May '08 >> MPEC 2008-J70 - "06:08 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K08J24L 2008 JL24 (small asteroid, arc=3 days, H=29.5 ~4m) from Great Shefford Obs. (May 12.92p1 & 13.89-92p3), Astronomical Research Obs. (ARO) (May 13.24p3), and Spacewatch 1.8m (May 14.20-21p3)
- Observations of recently (no longer) risk-listed objects
- K08J19V 2008 JV19 (arc=5 days, H=20.7 ~245m) from ARO (May 13.15p3)
- Observations of small asteroids (H>22.0)
- K08J24P 2008 JP24 (arc=3 days, H=26.7 ~15m) from Faulkes Telescope South (May 13.48-49p2 & 13.59-62p5)
- K08J14R 2008 JR14 (arc=7 days, H=25.1 ~32m) from MLS (May 13.27-29p4)
- K08GB0E 2008 GE110 (arc=29 days, H=22.1 ~129m) from ARO (May 13.11-12p3)
- K08GB0C 2008 GC110 (arc=29 days, H=22.2 ~123m) from ARO (May 13.19-21p3)
- K08G03U 2008 GU3 (arc=36 days, H=22.3 ~117m) from ARO (May 13.20-23p3 at V=22.2-5)
- K08G02G 2008 GG2 (arc=38 days, H=22.9 ~89m) from ARO (May 13.18-19p3)
- K08E84X 2008 EX84 (arc=62 days, H=22.3 ~117m) from ARO (May 13.29-31p3 at V=22.1-2)
- Observations of other objects
- K08J20O 2008 JO20 (arc=192 days, H=17.4 ~1.12 km) from MLS (2007 Nov. 3.41-44p4 at V=20.6-22.2 & May 13.14-16p4 at V=19.8-20.1)
- K08J20N 2008 JN20 (arc=3 days, H=18.5 ~676m) from ARO (May 13.36-37p3)
- K08J19S 2008 JS19 (arc=5 days, H=18.9 ~562m) from ARO (May 13.13-14p3)
- K08J14O 2008 JO14 (arc=6 days, H=21.2 ~195m) from ARO (May 13.21-22p3)
- K08J00G 2008 JG (arc=13 days, H=20.9 ~224m) from Spacewatch 1.8m (May 14.18-19p3)
- K08H03S 2008 HS3 (arc=14 days, H=21.6 ~162m) from Peschiera del Garda Obs. (May 13.88-89p3)
- K08E69C 2008 EC69 (Q=4.458 AU, arc=2 opp, H=17.2 ~1.23 km) from Rob Matson using the Palomar Digitized Sky Survey (1994 May 4.18-21p2)
- K08E05V 2008 EV5 (arc=70 days, H=20.0 ~339m) from ARO (May 13.10-11p3)
- K08D00Y 2008 DY (Q=4.342 AU, arc=77 days, H=20.9 ~224m) from ARO (May 13.35p3)
- K08D00E 2008 DE (arc=89 days, H=19.7 ~389m) from Siegen Obs. (May 6.04-05p3 & 6.95-96p3)
- K08A00E 2008 AE (arc=2 opp, H=19.8 ~371m) from Modra Obs. (May 12.06-07p2)
- K07V04Q 2007 VQ4 (arc=3 opp, H=16.0 ~2.14 km, q=1.271 AU) from Peschiera del Garda Obs. (May 5.84-87p3 & 8.92-93p3) and Siegen Obs. (May 5.00p2)
- K06H29R 2006 HR29 (arc=3 opp, H=20.6 ~257m) from MLS (May 13.34-36p4) and the Siding Spring Survey (SSS) (May 13.50-52p3)
- K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Casasco Obs. (May 13.88p1 & 13.96p1)
- K04O00B 2004 OB (arc=3 opp, H=18.9 ~562m) from the Spacewatch 0.9m telescope (May 11.33-35p2) and ARO (May 13.29-32p3)
- K02A29F 2002 AF29 (Q=5.239 AU, arc=2 opp, H=19.2 ~490m) from Spacewatch 0.9m (May 11.33-36p2)
- F2964 152964 2000 GP82 from MLS (May 13.14-15p4)
- D7170 137170 1999 HF1 from Mirasteilas Obs. (May 13.91-94p3)
- 85839 85839 1998 YO4 from SSS (May 13.59-61p4)
- 85628 85628 1998 KV2 from LINEAR (May 13.31-35p5)
- 68348 68348 2001 LO7 from the Catalina Sky Survey (CSS) (May 13.41-43p4)
- 68278 68278 2001 FC7 from LINEAR (May 13.26-30p5)
- 34613 34613 2000 UR13 from MLS (May 13.16-17p4)
- 05626 5626 1991 FE from LINEAR (May 13.26-30p4)
- 04503 4503 Cleobulus (1989 WM) from LINEAR (May 13.25-29p5)
- 01980 1980 Tezcatlipoca (1950 LA) from SSS (May 13.53-55p2)
- 01866 1866 Sisyphus (1972 XA) from Siegen Obs. (May 6.01-02p3) and CSS (May 13.14-15p4)
Observers on 14 May '08
Sixteen observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| H55 | Astronomical Research Obs. (ARO) in Illinois, 13 in MPEC 2008-J70 -- 2008 JV19, 2008 JS19, 2008 JO14, 2008 JN20, 2008 JL24, 2008 GU3, 2008 GG2, 2008 GE110, 2008 GC110, 2008 EX84, 2008 EV5, 2008 DY, 2004 OB |
| B66 | Casasco Obs., 1 in MPEC 2008-J70 -- 2005 NB7 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2008-J70 -- 68348, 1866 |
| E10 | Faulkes Telescope South in New South Wales, 1 in MPEC 2008-J70 -- 2008 JP24 |
| B21 | Gaisberg Obs. in Austria, 1 in MPEC 2008-J71 -- 2008 JM26 |
| J95 | Great Shefford Obs. in England, 1 in MPEC 2008-J70 -- 2008 JL24 |
| 704 | LINEAR in New Mexico, 4 in MPEC 2008-J70 -- 85628, 68278, 5626, 4503 |
| B67 | Mirasteilas Obs. in Switzerland, 1 in MPEC 2008-J70 -- 137170 |
| 118 | Modra Obs. in Slovakia, 1 in MPEC 2008-J70 -- 2008 AE |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2008-J70 & 2008-J71 -- 2008 JR14, 2008 JO20, 2008 JM26, 2006 HR29, 34613, 152964 |
| 261& | Rob Matson in southern California using the Palomar Digitized Sky Survey in southern California, 1 in MPEC 2008-J70 -- 2008 EC69 |
| A53 | Peschiera del Garda Obs. in Italy, 2 in MPEC 2008-J70 -- 2008 HS3, 2007 VQ4 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 3 in MPEC 2008-J70 -- 2006 HR29, 85839, 1980 |
| 510 | Siegen Obs. in Germany, 3 in MPEC 2008-J70 -- 2008 DE, 2007 VQ4, 1866 |
| 691 | Spacewatch 0.9m telescope in Arizona, 2 in MPEC 2008-J70 -- 2004 OB, 2002 AF29 |
| 291 | Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2008-J70 & 2008-J71 -- 2008 JM26, 2008 JL24, 2008 JG |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 14 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 | NEODyS | 1359 | 2068 | 1 | 8.73e-09 | -10.52 | -10.52 | 0 | NEODyS: "Based on 57 optical observations (of which 0 are rejected as outliers) from 2008/05/11.254 to 2008/05/14.211." |
| JPL Sentry | 1358 | 2091 | 1 | 6.0e-07 | -8.83 | -8.83 | 0 | JPL: "Analysis based on 57 observations spanning 2.9565 days (2008-May-11.25353 to 2008-May-14.21001)." Diameter approximately 0.004 km. from mean, weighted H=29.5. | |
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 14 May '08
Times are UTC for when items were noted or added by The Tracking News.
| 1658 | Grabbed MPEC 2008-J71 - 2008 JM26 - see above |
| 1359 | Noted that NEODyS has updated its 2008 JL24 risk assessment - see above |
| 1358 | Noted that JPL Sentry has updated its 2008 JL24 risk assessment - see above Grabbed MPEC 2008-J70 - Daily Orbit Update - see above |
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