Contents on 18 January '10
- IAU Minor Planet Center
- NEOCP Activity -- five listings: 3 new, 2 updated
- New MPECs -- two MPECs
- Observers -- eighteen 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
- 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.
NEOCP Activity on 18 January '10
The MPC's NEO Confirmation Page has 5 listings: 3 new, 2 updated
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and two updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of seven 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 18 January '10
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-B07 time-stamped "07:11 UT" - Daily Orbit Update - see below
- MPEC 2010-B08 time-stamped "23:25 UT" - 2010 BQ
MPEC 2010-B08 - "23:25 UT" - 2010 BQ
- K10B00Q 2010 BQ (i=37.5°, H=19.9 ~355m) was discovered at 0923 UT on 17 Jan. by LINEAR, which observed it at Jan. 16.34-39p5 and 17.39-42p3. The discovery was confirmed by Grove Creek Obs. (Jan. 18.74p2), Naef Obs. (Jan. 18.91-94p4), Gnosca Obs. (Jan. 18.92-93p2), and Farra d'Isonzo Obs. (Jan. 18.96p3).
<< DOU on 18 Jan. '10 >> MPEC 2010-B07 - "07:11 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K10B00B 2010 BB (arc=2 days, H=19.9 ~355m) from Great Shefford Obs. (Jan. 17.86-87p3) and Magdalena Ridge Obs. (MRO) (Jan. 18.07-11p4)
- Observations of recently (no longer) risk-listed objects
- K10A40F 2010 AF40 (small asteroid, arc=5 days, H=25.0 ~34m) from Great Shefford Obs. (Jan. 17.84-85p3)
- K10A30E 2010 AE30 (small asteroid, arc=7 days, H=23.6 ~65m) from Tenagra II Obs. (Jan. 17.16p3)
- K10A00K 2010 AK (arc=10 days, H=19.3 ~467m) from the Spacewatch 1.8m telescope (Jan. 16.36-37p2)
- K10A00J 2010 AJ (Q=4.563 AU, arc=11 days, H=20.2 ~309m) from Spacewatch 1.8m (Jan. 17.42-43p3)
- Observations of small asteroids (H>22.0)
- K10B00C 2010 BC (arc=1 day, H=22.2 ~123m) from Kevin Hills via RAS Obs. Moorook (Jan. 17.53-54p5)
- K10A61N 2010 AN61 (arc=3 days, H=27.0 ~13m) from Moriyama Obs. (Jan. 17.59-60p2) and MRO (Jan. 18.22-25p4)
- K10A60N 2010 AN60 (arc=2 days, H=26.9 ~14m) from Tenagra II Obs. (Jan. 17.31-32p3)
- K10A60L 2010 AL60 (arc=3 days, H=22.4 ~112m) from Tenagra II Obs. (Jan. 17.16-17p3)
- K10A40E 2010 AE40 (arc=5 days, H=23.9 ~56m) from Tenagra II Obs. (Jan. 17.22-23p3)
- K10A30L 2010 AL30 (arc=3 days, H=27.2 ~12m) from Maidbronn Obs. (Jan. 13.08p3)
- K10A03J 2010 AJ3 (arc=9 days, H=24.5 ~43m) from Tenagra II Obs. (Jan. 17.21-22p3)
- K10A03G 2010 AG3 (arc=9 days, H=27.5 ~11m) from Tenagra II Obs. (Jan. 17.34-37p3)
- K10A02O 2010 AO2 (arc=10 days, H=22.7 ~98m) from Tenagra II Obs. (Jan. 17.19-20p3)
- K10A02M 2010 AM2 (arc=10 days, H=23.7 ~62m) from Spacewatch 1.8m (Jan. 17.24-25p2)
- K10A00L 2010 AL (arc=11 days, H=22.5 ~107m) from Spacewatch 1.8m (Jan. 17.39-40p3)
- K09X08H 2009 XH8 (arc=33 days, H=23.2 ~78m) from Tenagra II Obs. (Jan. 17.23-24p3)
- K09X02O 2009 XO2 (arc=23 days, H=23.5 ~68m) from the Siding Spring Survey (SSS) (Dec. 19.74p2)
- Observations of other objects
- K10A30F 2010 AF30 (arc=8 days, H=21.4 ~178m) from MRO (Jan. 18.19-23p4)
- K10A02K 2010 AK2 (i=44.9°, arc=11 days, H=18.9 ~562m) from Spacewatch 1.8m (Jan. 17.26p3)
- K10A00E 2010 AE (arc=12 days, H=19.5 ~426m) from Spacewatch 1.8m (Jan. 17.37-38p3)
- K09WP3E 2009 WE253 (Q=4.016 AU, arc=2 opp, H=17.7 ~977m) from the Catalina Sky Survey (CSS) (Jan. 15.34-36p4)
- K09WA4F 2009 WF104 (Q=5.099 AU, arc=52 days, H=16.9 ~1.41 km) from the Mt. Lemmon Survey (MLS) (Jan. 14.18-21p3)
- K09W06O 2009 WO6 (Q=4.882 AU, arc=90 days, H=17.3 ~1.17 km) from MLS (Jan. 16.10-12p4)
- K09U18V 2009 UV18 (Q=5.187 AU, arc=2 opp, H=15.7 ~2.45 km, q=1.167 AU) from CSS (Jan. 15.50-52p3)
- K09SH2Q 2009 SQ172 (arc=111 days, H=18.4 ~708m) from Tenagra II Obs. (Jan. 17.17-18p3)
- K09Q09J 2009 QJ9 (Q=4.398 AU, arc=137 days, H=19.4 ~446m) from SSS (Nov. 14.63p1)
- K08X00M 2008 XM (q=0.111 AU, arc=2 opp, H=20.0 ~339m) from Los Molinos Obs. (Jan. 17.28p12)
- K07Y56V 2007 YV56 (arc=3 opp, H=21.0 ~214m) from MLS (Jan. 15.37-40p4)
- K07M13K 2007 MK13 (arc=3 opp, H=20.0 ~339m) from Naef Obs. (Jan. 17.78-80p2)
- K06W02Y 2006 WY2 (arc=4 opp, H=18.5 ~676m) from SSS (Nov. 14.63-65p2)
- K06A04O 2006 AO4 (Q=4.162 AU, arc=4 opp, H=15.4 ~2.82 km, q=1.098 AU) from MLS (Jan. 15.36-40p4)
- K05T51Y 2005 TY51 (Q=4.048 AU, arc=2 opp, H=17.7 ~977m) from SSS (Nov. 14.59-60p2)
- K03F01J 2003 FJ1 (arc=5 opp, H=17.7 ~977m) from SSS (Dec. 7.48-49p2)
- K02X90M 2002 XM90 (arc=4 opp, H=17.9 ~891m) from MLS (Jan. 14.11-13p3)
- K02W00P 2002 WP (arc=3 opp, H=18.5 ~676m) from SSS (Nov. 10.69-73p3)
- K01QE2H 2001 QH142 (arc=5 opp, H=18.3 ~741m) from Naef Obs. (Jan. 17.79-81p2)
- J99V22F 1999 VF22 (q=0.343 AU, arc=3 opp, H=20.5 ~269m) from Spacewatch 1.8m (Jan. 17.40-41p2)
- M9007 229007 2003 XF11 from CSS (Jan. 15.49-52p4)
- M6198 226198 2002 UN3 from CSS (Jan. 14.15-18p4)
- L9527 219527 2001 QK142 from CSS (Jan. 15.26-28p4) and MLS (Jan. 15.33-36p4)
- L8863 218863 2006 WO127 from Thompsonville Obs. (Jan. 18.10-11p5)
- L7013 217013 2001 AA50 from Naef Obs. (Jan. 17.78-81p2)
- L4088 214088 2004 JN13 from Thompsonville Obs. (Jan. 18.07-08p6)
- H2718 172718 2004 BD85 from MLS (Jan. 15.19-21p4)
- G2998 162998 2001 SK162 from LINEAR (Jan. 17.08-12p4)
- G1989 161989 Cacus (1978 CA) from SSS (Nov. 14.66-67p2)
- F2742 152742 1998 XE12 from SSS (Jan. 14.74-75p3)
- D8937 138937 2001 BK16 from MLS (Jan. 15.26-28p4)
- D7924 137924 2000 BD19 from CSS (Jan. 15.38-40p3)
- A5141 105141 2000 NF11 from LINEAR (Jan. 17.33-38p4)
- 99248 99248 2001 KY66 from CSS (Jan. 15.34-36p4)
- 96590 96590 1998 XB from LINEAR (Jan. 17.08-12p4)
- 85818 85818 1998 XM4 from SSS (Dec. 23.48-51p4)
- 85184 85184 1991 JG1 from MLS (Jan. 14.08-11p4)
- 55408 55408 2001 TC2 from SSS (Nov. 11.57-59p2)
- 27346 27346 2000 DN8 from SSS (Dec. 23.68-69p3, Jan. 8.63-68p3 & 11.63-65p3)
- 20790 20790 2000 SE45 from CSS (Jan. 14.09-11p4)
- 10165 10165 1995 BL2 from Purple Mtn. Obs. Xuyi Station (Xuyi Sta.) (Jan. 16.77-80p4) and Naef Obs. (Jan. 17.83-85p2)
- 05626 5626 1991 FE from SSS (Dec. 19.48-49p4), MLS (Jan. 14.08-11p5), and Thompsonville Obs. (Jan. 18.08-09p6)
- 04486 4486 Mithra (1987 SB) from LINEAR (Jan. 17.40-45p4)
- 04055 4055 Magellan (1985 DO2) from CSS (Jan. 15.53-56p3)
- 03552 3552 Don Quixote (1983 SA) from Thompsonville Obs. (Jan. 18.04-05p6)
- 01916 1916 Boreas (1953 RA) from MLS (Jan. 15.37-40p3)
- 01627 1627 Ivar (1929 SH) from LINEAR (Jan. 17.34-39p5)
- 00433 433 Eros (1898 DQ) from Thompsonville Obs. (Jan. 18.03-04p6)
Observers on 18 January '10
Eighteen observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| 703 | Catalina Sky Survey (CSS) in Arizona, 9 in MPEC 2010-B07 -- 2009 WE253, 2009 UV18, 99248, 229007, 226198, 219527, 20790, 137924, 4055 |
| 595 | Farra d'Isonzo Obs. in Italy, 1 in MPEC 2010-B08 -- 2010 BQ |
| 143 | Gnosca Obs. in Switzerland, 1 in MPEC 2010-B08 -- 2010 BQ |
| J95 | Great Shefford Obs. in England, 2 in MPEC 2010-B07 -- 2010 BB, 2010 AF40 |
| E16 | Grove Creek Obs. in New South Wales, 1 in MPEC 2010-B08 -- 2010 BQ |
| 704 | LINEAR in New Mexico, 6 in MPECs 2010-B07 & 2010-B08 -- 2010 BQ, 96590, 162998, 105141, 4486, 1627 |
| 844 | Los Molinos Obs. in Uruguay, 1 in MPEC 2010-B07 -- 2008 XM |
| H01 | Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPEC 2010-B07 -- 2010 BB, 2010 AN61, 2010 AF30 |
| B82 | Maidbronn Obs. in Germany, 1 in MPEC 2010-B07 -- 2010 AL30 |
| 900 | Moriyama Obs. in Japan, 1 in MPEC 2010-B07 -- 2010 AN61 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 11 in MPEC 2010-B07 -- 2009 WO6, 2009 WF104, 2007 YV56, 2006 AO4, 2002 XM90, 85184, 219527, 172718, 138937, 5626, 1916 |
| A13 | Naef Obs. in Switzerland, 5 in MPECs 2010-B07 & 2010-B08 -- 2010 BQ, 2007 MK13, 2001 QH142, 217013, 10165 |
| D29 | Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2010-B07 -- 10165 |
| D90` | Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-B07 -- 2010 BC |
| E12 | Siding Spring Survey (SSS) in New South Wales, 12 in MPEC 2010-B07 -- 2009 XO2, 2009 QJ9, 2006 WY2, 2005 TY51, 2003 FJ1, 2002 WP, 85818, 55408, 27346, 161989, 152742, 5626 |
| 291 | Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2010-B07 -- 2010 AM2, 2010 AL, 2010 AK2, 2010 AK, 2010 AJ, 2010 AE, 1999 VF22 |
| 926 | Tenagra II Obs. in Arizona, 9 in MPEC 2010-B07 -- 2010 AO2, 2010 AN60, 2010 AL60, 2010 AJ3, 2010 AG3, 2010 AE40, 2010 AE30, 2009 XH8, 2009 SQ172 |
| H53 | Thompsonville Obs. in Illinois, 5 in MPEC 2010-B07 -- 218863, 214088, 5626, 3552, 433 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 18 January '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 BB | JPL Sentry | 1503 | R E M O V E D | JPL: Risk listing removed at 1040 UTC. | |||||
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.