NASA JPL reports that the WISE wide-field infrared telescope operating in Earth polar orbit has been discovering asteroids at the rate of "about a hundred a day" since January, mostly in the Main Belt but including "more than 50" total near Earth, and "has also bagged about a dozen new comets." Credit: January image of M3 with comet C/2008 Q3 (Garradd), NASA/JPL-Caltech/WISE.
Contents on 26 May '10
- Radar Astrometry -- one object
- IAU Minor Planet Center
- NEOCP Activity -- eleven listings: 8 new, 3 updated
- New MPECs -- one MPEC
- Observers -- nineteen observing facilities
- Impact Risk Monitoring -- two objects
- Chronology
Resources:
- Consolidated Risk Tables - the CRT page
Of 324 risk-listed objects, 31 have had news in the last month. Updated at 1725 UTC. - Earth's Busy Neighborhood Traffic Report
Eight objects are known to be within ten LD of Earth today. Updated at 2104 UTC. - Ephemerides for risk-rated and nearby objects
- News image catalog
- 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.
Radar Astrometry on 26 May '10
Radar observation of one object
The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:
Data update noted at 2036 UTC when the database was dated 26 May
- 2010 JN71 from Arecibo (May 25.83 range)
NEOCP Activity on 26 May '10
The MPC's NEO Confirmation Page has 11 listings: 8 new, 3 updated
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eight new and three updated listings. Of these, three were "one nighters."
New MPECs on 26 May '10
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
<< DOU on 26 May '10 >> MPEC 2010-K62 - "06:11 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K10K39V 2010 KV39 (small asteroid, arc=2 days, H=26.8 ~15m) from Sormano Obs. (May 24.91p2), Tenagra II Obs. (May 25.25p3), and Great Shefford Obs. (May 25.90-93p6)
- K10K10R 2010 KR10 (arc=5 days, H=19.4 ~446m) from Desert Moon Obs. (May 25.40-42p3)
- Observations of recently (no longer) risk-listed objects
- K10K00Q 2010 KQ (small asteroid, arc=9 days, H=29.6 ~4m) from Sormano Obs. (May 24.89p2 & 24.94p2), Magdalena Ridge Obs. (MRO) (May 25.23-25p4), and Richard Miles via Faulkes Telescope North (May 25.44-46p7)
- Observations of small asteroids (H>22.0)
- K10K37K 2010 KK37 (arc=2 days, H=25.6 ~26m) from Sormano Obs. (May 24.92p3) and Tenagra II Obs. (May 25.24-25p3)
- K10J33O 2010 JO33 (arc=17 days, H=25.0 ~34m) from the Mt. Lemmon Survey (MLS) (May 25.39-40p4)
- K10G34A 2010 GA34 (arc=42 days, H=22.4 ~112m) from Desert Moon Obs. (May 24.26-27p4)
- Observations of other objects
- K10K39Y 2010 KY39 (arc=7 days, H=20.7 ~245m) from Astronomical Research Obs. Westfield (May 23.37-38p2)
- K10J88H 2010 JH88 (Q=4.114 AU, arc=11 days, H=18.1 ~812m) from ARO Westfield (May 24.11p3) and the Catalina Sky Survey (CSS) (May 25.29-31p4)
- K10J41K 2010 JK41 (Q=4.318 AU, arc=14 days, H=20.0 ~339m) from Desert Moon Obs. (May 24.14-16p4)
- K10J34V 2010 JV34 (arc=17 days, H=20.9 ~224m) from Tzec Maun Obs. Mayhill (May 18.38-39p3), Siegen Obs. (May 21.95p4 & 23.93-94p4), ARO Westfield (May 24.21-23p8), Sormano Obs. (May 24.95p3), and Doc Greiner Research Obs. (DGRO) (May 25.12-15p14)
- K10H00C 2010 HC (arc=38 days, H=21.3 ~186m) from Desert Moon Obs. (May 25.14-17p3)
- K10G62X 2010 GX62 (Q=5.035 AU, arc=45 days, H=20.2 ~309m) from MLS (May 25.29-31p3)
- K10F81C 2010 FC81 from University Hills Obs. (May 24.33-36p5), Castelmartini Obs. (May 24.96p3), and Tzec Maun Obs. Mayhill (May 25.35-37p3)
- K10ED5C 2010 EC135 (arc=74 days, H=19.9 ~355m) from Wishing Star Obs. (May 25.05-08p3)
- K09SA3O 2009 SO103 (arc=2 opp, H=17.5 ~1.07 km) from CSS (May 25.37-39p4)
- K09K05D 2009 KD5 (arc=3 opp, H=18.3 ~741m) from Castelmartini Obs. (May 24.98p3)
- K08C70J 2008 CJ70 (arc=2 opp, H=21.3 ~186m) from Ovidiu Vaduvescu on Mauna Kea (2005 Sept. 3.53-54p4)
- K06Q00S 2006 QS (arc=2 opp, H=19.9 ~355m) from Desert Moon Obs. (May 24.18-23p3)
- K05S71C 2005 SC71 (arc=2 opp, H=18.3 ~741m) from Desert Moon Obs. (May 25.21-29p3)
- K05O03J 2005 OJ3 (Q=4.167 AU, arc=2 opp, H=18.1 ~812m) from Vaduvescu/Mauna Kea (2004 May 24.36-41p6)
- K04X50D 2004 XD50 (arc=2 opp, H=18.5 ~676m) from ARO Westfield (May 24.24p3)
- K04X35L 2004 XL35 (arc=3 opp, H=19.5 ~426m) from the Spacewatch 0.9m telescope (May 22.36-40p3)
- K03N06Z 2003 NZ6 (arc=5 opp, H=18.9 ~562m) from Desert Moon Obs. (May 25.35-38p5)
- K02V94R 2002 VR94 (arc=2 opp, H=19.1 ~513m) from Vaduvescu/Mauna Kea (2005 May 8.42-48p6)
- K00S44Z 2000 SZ44 (arc=2 opp, H=20.5 ~269m) from Vaduvescu/Mauna Kea (2005 Jan. 16.34p2 & 2005 Jan. 16.38-42p4)
- N7442 237442 1999 TA10 from Castelmartini Obs. (May 24.95-96p3)
- G4221 164221 2004 QE20 from Vaduvescu/Mauna Kea (2009 Jan. 25.50-54p3)
- G1998 161998 1988 PA from Desert Moon Obs. (May 25.32-34p5)
- F3957 153957 2002 AB29 from Castelmartini Obs. (May 25.00-01p3)
- F3842 153842 2001 XT30 from Desert Moon Obs. (May 25.44-46p3)
- 85818 85818 1998 XM4 from Montseny Obs. (May 23.05-07p7)
- 85628 85628 1998 KV2 from Spacewatch 0.9m (May 22.24-28p3)
- 66400 66400 1999 LT7 from Spacewatch 0.9m (May 22.19-23p3)
- 37638 37638 1993 VB from Spacewatch 0.9m (May 21.39-40p2)
- 00433 433 Eros (1898 DQ) from Siegen Obs. (May 21.85-86p3 & 23.89p3)
Observers on 26 May '10
Nineteen observing facilities appear in today's MPEC.
| Code | Observer / observatory |
|---|---|
| 251 | Arecibo in Puerto Rico, 1 in radar -- 2010 JN71 |
| H21 | Astronomical Research Obs. Westfield in Illinois, 4 in MPEC 2010-K62 -- 2010 KY39, 2010 JV34, 2010 JH88, 2004 XD50 |
| 160 | Castelmartini Obs. in Italy, 4 in MPEC 2010-K62 -- 2010 FC81, 2009 KD5, 237442, 153957 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2010-K62 -- 2010 JH88, 2009 SO103 |
| 448 | Desert Moon Obs. in New Mexico, 9 in MPEC 2010-K62 -- 2010 KR10, 2010 JK41, 2010 HC, 2010 GA34, 2006 QS, 2005 SC71, 2003 NZ6, 161998, 153842 |
| H26 | Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-K62 -- 2010 JV34 |
| F656 | Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2010-K62 -- 2010 KQ |
| J95 | Great Shefford Obs. in England, 1 in MPEC 2010-K62 -- 2010 KV39 |
| H01 | Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-K62 -- 2010 KQ |
| 568[ | Ovidiu Vaduvescu on Mauna Kea in Hawaii, 5 in MPEC 2010-K62 -- 2008 CJ70, 2005 OJ3, 2002 VR94, 2000 SZ44, 164221 |
| B06 | Montseny Obs. in Spain, 1 in MPEC 2010-K62 -- 85818 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2010-K62 -- 2010 JO33, 2010 GX62 |
| 510 | Siegen Obs. in Germany, 2 in MPEC 2010-K62 -- 2010 JV34, 433 |
| 587 | Sormano Obs. in Italy, 4 in MPEC 2010-K62 -- 2010 KV39, 2010 KQ, 2010 KK37, 2010 JV34 |
| 691 | Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2010-K62 -- 2004 XL35, 85628, 66400, 37638 |
| 926 | Tenagra II Obs. in Arizona, 2 in MPEC 2010-K62 -- 2010 KV39, 2010 KK37 |
| H10 | Tzec Maun Obs. Mayhill in New Mexico, 2 in MPEC 2010-K62 -- 2010 JV34, 2010 FC81 |
| G72 | University Hills Obs. in southern California, 1 in MPEC 2010-K62 -- 2010 FC81 |
| I15 | Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-K62 -- 2010 EC135 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 26 May '10
| 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 |
| 2010 KV39 | NEODyS | 1653 | R E M O V E D | - | |||||
| JPL Sentry | 1653 | R E M O V E D | JPL: Risk listing removed at 0955 UTC. | ||||||
| 2010 KR10 | JPL Sentry | 1653 | 2047-2081 | 3 | 1.3e-07 | -4.19 | -4.26 | 0 | JPL: "Analysis based on 24 observations spanning 4.9813 days (2010-May-20.44123 to 2010-May-25.42252)." Diameter approximately 0.392 km. from mean, weighted H=19.7. |
| NEODyS | 1653 | 2047-2081 | 3 | 1.68e-07 | -4.10 | -4.20 | 0 | NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2010/05/20.442 to 2010/05/25.423." | |
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 May '10
Times are UTC for when items were noted or added by The Tracking News.
| 2036 | Noted Radar Astrometry database update - see above |
| 1653 | Noted that JPL Sentry has updated its 2010 KR10 risk assessment - see above Noted that NEODyS has updated its 2010 KR10 risk assessment - see above Noted that JPL Sentry has removed 2010 KV39 as an impact risk - see above Noted that NEODyS has removed 2010 KV39 as an impact risk - see above Grabbed MPEC 2010-K62 - Daily Orbit Update - see above |
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