Contents on 24 June '10
- IAU Minor Planet Center
- Observers -- sixteen observing facilities
- Impact Risk Monitoring -- one object
- Consolidated Risk Tables - the CRT page
Of 328 risk-listed objects, 28 have had news in the last month. Updated at 2115 UTC.
- Earth's Busy Neighborhood Traffic Report
Two objects are known to be within ten LD of Earth today. Updated at 2213 UTC.
- Ephemerides for risk-rated and nearby objects
- News image catalog
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
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 24 June '10
The MPC's NEO Confirmation Page has 10 listings: 5 new, 5 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and five updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of fifteen listings on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.
New MPECs on 24 June '10
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been four MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-M52 time-stamped "04:31 UT" - 2010 MW1 - see below
- MPEC 2010-M53 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2010-M54 time-stamped "18:09 UT" - 2010 MY1 - see below
- MPEC 2010-M55 time-stamped "19:25 UT" - 2010 MZ1
MPEC 2010-M55 - "19:25 UT" - 2010 MZ1
- K10M01Z 2010 MZ1 (risk-listed, Earth MOID=7.7 LD, H=25.6 ~26m) was discovered at 0538 UT on 24 June by the Mt. Lemmon Survey (MLS), which observed it at June 24.23-27p7 and 24.33-36p7. This object will be coming within ten lunar distances (LD) of Earth, reaching 8.3 LD on 25 June.
MPEC 2010-M54 - "18:09 UT" - 2010 MY1
- K10M01Y 2010 MY1 (small asteroid, Earth MOID=6.5 LD, H=23.7 ~62m) was discovered at 0636 UT on 23 June by the Catalina Sky Survey (CSS), which observed it at June 23.28-31p8. The discovery was confirmed by MLS (June 23.40-41p4 & 24.23p3), Saint-Barthelemy Obs. (June 23.90-92p4), Great Shefford Obs. (June 23.94-95p3), Tenagra II Obs. (June 24.17p3), and Sabino Canyon Obs. (June 24.24-25p3). This object will be coming within ten lunar distances (LD) of Earth, reaching 7.9 LD on 3 July.
- Observations of recently (no longer) risk-listed objects
- K10L63Z 2010 LZ63 (arc=11 days, H=20.1 ~323m) from Kevin Hills via RAS Obs. Moorook (June 23.69p2)
- K10L34M 2010 LM34 (small asteroid, Q=4.371 AU, arc=13 days, H=23.3 ~74m) from Astronomical Research Obs. Westfield (June 23.26-30p3 at V=21.5-22.2)
- Observations of small asteroids (H>22.0)
- K10M00C 2010 MC (arc=7 days, H=24.5 ~43m) from ARO Westfield (June 23.19-20p3)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K10F81H 2010 FH81 (arc=81 days, H=21.8 ~148m) from David Tholen's team on Mauna Kea (June 19.60p2)
- Observations of other objects
- K10M01P 2010 MP1 (arc=4 days, H=21.2 ~195m) from ARO Westfield (June 23.21-22p4)
- K10M00Q 2010 MQ (q=0.386 AU, arc=7 days, H=19.9 ~355m) from ARO Westfield (June 23.17-18p3)
- K10L68M 2010 LM68 (arc=8 days, H=20.8 ~234m) from ARO Westfield (June 23.20-21p3)
- K10L63Y 2010 LY63 (arc=8 days, H=17.5 ~1.07 km) from Tzec Maun Obs. Moorook (June 14.64-66p3)
- K10L15E 2010 LE15 (arc=21 days, H=19.4 ~446m) from Wildberg Obs. (June 24.02-04p7)
- K10J87G 2010 JG87 (q=0.146 AU, Q=5.381 AU, arc=42 days, H=19.2 ~490m) from MLS (June 23.30p4)
- K10EB9X 2010 EX119 (arc=102 days, H=19.7 ~389m) from Tholen team/Mauna Kea (June 19.60-61p3) and the Spacewatch 0.9m telescope (June 23.42-43p3)
- K10A78B 2010 AB78 (arc=158 days, H=18.3 ~741m) from Tholen team/Mauna Kea (June 19.59-60p3)
- K10A00E 2010 AE (arc=169 days, H=19.5 ~426m) from CSS (June 23.43-44p4)
- K09K05D 2009 KD5 (arc=3 opp, H=18.4 ~708m) from Atlante Obs. (June 23.88-92p3)
- K09K03C 2009 KC3 (Q=5.447 AU, arc=2 opp, H=18.0 ~851m) from Betelgeuse Station (2009 Sept. 23.97p2)
- K06K21L 2006 KL21 (arc=2 opp, H=20.7 ~245m) from Mirasteilas Obs. (June 23.96-99p3)
- N7442 237442 1999 TA10 from Mirasteilas Obs. (June 23.91-92p3)
- D8847 138847 2000 VE62 from MLS (June 23.41-43p3)
- 17274 17274 2000 LC16 from Betelgeuse Sta. (2009 Sept. 23.93p3)
- 07088 7088 Ishtar (1992 AA) from MLS (June 23.38-40p4)
MPEC 2010-M52 - "04:31 UT" - 2010 MW1
- K10M01W 2010 MW1 (H=19.5 ~426m) was discovered at 0631 UT on 22 June by MLS, which observed it at June 22.27-29p3, 22.35-36p3, 22.43p4, and 23.30p2. The discovery was confirmed by Sormano Obs. (June 22.88-89p2) and Great Shefford Obs. (June 23.98p1 & 24.04-08p2).
Observers on 24 June '10
Sixteen observing facilities appear in today's MPECs.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 5 in MPEC 2010-M53 -- 2010 MQ, 2010 MP1, 2010 MC, 2010 LM68, 2010 LM34|
|J51||Atlante Obs. in the Canary Islands, 1 in MPEC 2010-M53 -- 2009 KD5|
|B75||Betelgeuse Station in Italy, 2 in MPEC 2010-M53 -- 2009 KC3, 17274|
|703||Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2010-M53 & 2010-M54 -- 2010 MY1, 2010 AE|
|J95||Great Shefford Obs. in England, 2 in MPECs 2010-M52 & 2010-M54 -- 2010 MY1, 2010 MW1|
|5682||David Tholen's team on Mauna Kea in Hawaii, 3 in MPEC 2010-M53 -- 2010 FH81, 2010 EX119, 2010 AB78|
|B67||Mirasteilas Obs. in Switzerland, 2 in MPEC 2010-M53 -- 2006 KL21, 237442|
|G96||Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2010-M52, 2010-M53, 2010-M54 & 2010-M55 -- 2010 MZ1, 2010 MY1, 2010 MW1, 2010 JG87, 138847, 7088|
|D90`||Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-M53 -- 2010 LZ63|
|854||Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-M54 -- 2010 MY1|
|B04||Saint-Barthelemy Obs. in Italy, 1 in MPEC 2010-M54 -- 2010 MY1|
|587||Sormano Obs. in Italy, 1 in MPEC 2010-M52 -- 2010 MW1|
|691||Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-M53 -- 2010 EX119|
|926||Tenagra II Obs. in Arizona, 1 in MPEC 2010-M54 -- 2010 MY1|
|D96||Tzec Maun Obs. Moorook in South Australia, 1 in MPEC 2010-M53 -- 2010 LY63|
|198||Wildberg Obs. in Germany, 1 in MPEC 2010-M53 -- 2010 LE15|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 24 June '10
Notes for Today's Latest Risk Assessments
|2010 MZ1||JPL Sentry||2112||2016||1||2.5e-10||-8.25||-8.25||0||JPL: "Analysis based on 14 observations spanning .12392 days (2010-Jun-24.23481 to 2010-Jun-24.35873)." Diameter approximately 0.040 km. from mean, weighted H=24.6.|
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 24 June '10
Times are UTC for when items were noted or added by The Tracking News.
|2112||Noted that JPL Sentry has posted 2010 MZ1 as an impact risk - see above|
|2000||Grabbed MPEC 2010-M55 - 2010 MZ1 - see above|
|1905||Grabbed MPEC 2010-M54 - 2010 MY1 - see above|
|1545||Grabbed MPEC 2010-M53 - Daily Orbit Update - see above|
|0442||Grabbed MPEC 2010-M52 - 2010 MW1 - see above|