Contents on 21 February '10
- IAU Minor Planet Center
- NEOCP Activity -- six listings: 6 updated
- New MPECs -- three MPECs
- Observers -- 22 observing facilities
- Impact Risk Monitoring -- nothing to report
- 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 21 February '10
The MPC's NEO Confirmation Page has 6 listings: 6 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six updated listings. So far The Tracking News has counted a total of eight 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 21 February '10
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been three MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-D58 time-stamped "02:39 UT" - 2005 YU55 - see below
- MPEC 2010-D59 time-stamped "07:22 UT" - Daily Orbit Update - see below
- MPEC 2010-D60 time-stamped "18:53 UT" - 2010 DJ1
MPEC 2010-D60 - "18:53 UT" - 2010 DJ1
- K10D01J 2010 DJ1 (Earth MOID=0.4 LD, H=26.9 ~14m) from the Siding Spring Survey (SSS) (Feb. 21.43p2, 21.51p4 & 21.61p10) and Shenton Park Obs. (Feb. 21.62-63p9 & 21.68-70p5) This object is now within ten lunar distances (LD) of Earth, reaching 1.0 LD on 22 Feb.
<< DOU on 21 Feb. '10 >> MPEC 2010-D59 - "07:22 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K10C19S 2010 CS19 (small asteroid, arc=4 days, H=28.0 ~9m) from Astronomical Research Obs. Westfield (ARO Westfield) (Feb. 19.31-33p3)
- Observations of recently (no longer) risk-listed objects
- K10D01W 2010 DW1 (arc=3 days, H=19.6 ~407m) from Tenagra II Obs. (Feb. 20.54p3)
- K10D01J 2010 DJ1 (small asteroid, arc=4 days, H=26.9 ~14m) from Ovidiu Vaduvescu via La Palma (Feb. 20.10p5), Tenagra II Obs. (Feb. 20.36-37p3 & 20.47p3), SSS (Feb. 20.55-56p4 & 20.66-67p2), Great Shefford Obs. (Feb. 20.86p3 & 21.07p3), Gnosca Obs. (Feb. 20.86-88p5), and Bergen-Enkheim Obs. (Feb. 20.91-93p6)
- K10D00A 2010 DA (arc=4 days, H=20.3 ~295m) from ARO Westfield (Feb. 19.20-21p3) and SSS (Feb. 19.42-43p2 & 20.42p2)
- K10C19J 2010 CJ19 from Desert Moon Obs. (Feb. 19.36-40p3)
- Observations of small asteroids (H>22.0)
- K10D01Y 2010 DY1 (arc=1 day, H=25.8 ~23m) from Tenagra II Obs. (Feb. 20.49p3)
- K10D00K 2010 DK (arc=4 days, H=22.9 ~89m) from Tenagra II Obs. (Feb. 20.41-44p2)
- K10C44P 2010 CP44 (arc=5 days, H=25.7 ~25m) from Tenagra II Obs. (Feb. 20.21-22p3)
- K10C19P 2010 CP19 (arc=5 days, H=25.9 ~22m) from Tenagra II Obs. (Feb. 20.50-51p2)
- K10C19B 2010 CB19 (arc=6 days, H=24.5 ~43m) from ARO Westfield (Feb. 19.19-20p4)
- K10C18J 2010 CJ18 (arc=7 days, H=26.8 ~15m) from Tenagra II Obs. (Feb. 20.53-54p9)
- K10C01K 2010 CK1 (arc=10 days, H=24.0 ~54m) from ARO Westfield (Feb. 19.16-18p3)
- K10C00N 2010 CN (arc=13 days, H=23.4 ~71m) from ARO Westfield (Feb. 19.26-27p4)
- K02X38Y 2002 XY38 (arc=2 opp, H=22.9 ~89m) from Lenomiya Obs. (Feb. 20.11-12p3)
- Observations of other objects
- K10D00O 2010 DO (arc=4 days, H=21.6 ~162m) from ARO Westfield (Feb. 19.45-46p4) and Tenagra II Obs. (Feb. 20.52-53p3)
- K10D00N 2010 DN (arc=4 days, H=20.9 ~224m) from Tenagra II Obs. (Feb. 20.22-24p6)
- K10C55F 2010 CF55 (arc=5 days, H=21.6 ~162m) from Vaduvescu/La Palma (Feb. 20.10-11p3)
- K10C44M 2010 CM44 (arc=7 days, H=19.2 ~490m) from ARO Westfield (Feb. 19.39-41p4) and Desert Moon Obs. (Feb. 20.44-45p3)
- K10C18L 2010 CL18 (arc=7 days, H=18.5 ~676m) from Desert Moon Obs. (Feb. 20.47-48p4)
- K10C18H 2010 CH18 (Q=4.051 AU, arc=10 days, H=18.8 ~589m) from Deronda Mayes via Table Mtn. Obs. (Feb. 13.18-19p4)
- K10C01R 2010 CR1 (q=0.366 AU, arc=10 days, H=18.5 ~676m) from SSS (Feb. 19.67p1)
- K10B03C 2010 BC3 (Q=5.269 AU, arc=31 days, H=20.4 ~282m) from Desert Moon Obs. (Feb. 20.50-53p3) and Libbiano Obs. (Feb. 21.14p3)
- K10B03B 2010 BB3 (arc=31 days, H=20.3 ~295m) from Bigmuskie Obs. (Feb. 20.96-97p3) and Libbiano Obs. (Feb. 21.06-07p3)
- K09U03N 2009 UN3 (i=37.4°, arc=124 days, H=18.5 ~676m) from Hamamatsu-Yuto Obs. (Feb. 20.78-82p8), Mt. Tuffley Obs. (Feb. 20.95p3), and Bigmuskie Obs. (Feb. 21.04-05p3)
- K09SH1V 2009 SV171 (Q=4.184 AU, arc=145 days, H=19.6 ~407m) from Desert Moon Obs. (Feb. 20.35-39p3)
- K09F04Y 2009 FY4 (arc=2 opp, H=20.9 ~224m) from SSS (Feb. 20.71p2)
- K06D14S 2006 DS14 (arc=3 opp, H=20.3 ~295m) from SSS (Feb. 19.67-69p2) and Desert Moon Obs. (Feb. 20.41-42p3)
- K06B06N 2006 BN6 (Q=4.352 AU, arc=4 opp, H=17.4 ~1.12 km) from SSS (Feb. 19.51-54p3)
- K04T13R 2004 TR13 (arc=4 opp, H=18.5 ~676m) from the Catalina Sky Survey (CSS) (Feb. 20.18-19p4)
- K04R84D 2004 RD84 (arc=2 opp, H=19.0 ~537m) from Bigmuskie Obs. (Feb. 20.79-82p3)
- K02L00V 2002 LV (arc=3 opp, H=16.6 ~1.62 km) from Herrenberg Obs. (Feb. 18.84-86p3)
- K02C26F 2002 CF26 (arc=6 opp, H=17.2 ~1.23 km) from Bigmuskie Obs. (Feb. 20.88-90p3)
- K02AC9J 2002 AJ129 (q=0.117 AU, arc=3 opp, H=18.5 ~676m) from Bigmuskie Obs. (Feb. 20.85-87p3)
- K01P09T 2001 PT9 (arc=2 opp, H=20.7 ~245m) from Hamamatsu-Yuto Obs. (Feb. 20.55-56p2 & 20.60-63p9) and Mt. Tuffley Obs. (Feb. 20.96-97p3)
- K00CA1O 2000 CO101 (arc=2 opp, H=19.0 ~537m) from Hamamatsu-Yuto Obs. (Feb. 20.64-68p9) and An Carraig Obs. (Feb. 20.91-92p3)
- G2998 162998 2001 SK162 from Lenomiya Obs. (Feb. 20.15-16p3)
- F2931 152931 2000 EA107 from Bigmuskie Obs. (Feb. 21.10-11p3)
- E4861 144861 2004 LA12 from the Spacewatch 0.9m telescope (Feb. 20.25-28p3)
- E2464 142464 2002 TC9 from SSS (Feb. 19.45-47p3)
- 54789 54789 2001 MZ7 from Mt. Tuffley Obs. (Feb. 20.94p3)
- 25143 25143 Itokawa (1998 SF36) from the Mt. Lemmon Survey (MLS) (Feb. 20.12-15p4)
- 24761 24761 Ahau (1993 BW2) from CSS (Feb. 20.18-24p8)
- 03554 3554 Amun (1986 EB) from Velikie Luki Obs. (Feb. 17.85-86p2)
MPEC 2010-D58 - "02:39 UT" - 2005 YU55
- K05Y55U 2005 YU55 (borderline-small, Earth MOID=0.4 LD, H=21.9 ~141m) from David Tholen's team on Mauna Kea (Feb. 9.64p2 at R=22.3-7 & 20.54p2 at R=22.4-6)
Observers on 21 February '10
A total of 22 observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| J16 | An Carraig Obs. in Northern Ireland, 1 in MPEC 2010-D59 -- 2000 CO101 |
| H21 | Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 7 in MPEC 2010-D59 -- 2010 DO, 2010 DA, 2010 CS19, 2010 CN, 2010 CM44, 2010 CK1, 2010 CB19 |
| A74 | Bergen-Enkheim Obs. in Germany, 1 in MPEC 2010-D59 -- 2010 DJ1 |
| B88 | Bigmuskie Obs. in Italy, 6 in MPEC 2010-D59 -- 2010 BB3, 2009 UN3, 2004 RD84, 2002 CF26, 2002 AJ129, 152931 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 2 in MPEC 2010-D59 -- 2004 TR13, 24761 |
| 448 | Desert Moon Obs. in New Mexico, 6 in MPEC 2010-D59 -- 2010 CM44, 2010 CL18, 2010 CJ19, 2010 BC3, 2009 SV171, 2006 DS14 |
| 143 | Gnosca Obs. in Switzerland, 1 in MPEC 2010-D59 -- 2010 DJ1 |
| J95 | Great Shefford Obs. in England, 1 in MPEC 2010-D59 -- 2010 DJ1 |
| 379 | Hamamatsu-Yuto Obs. in Japan, 3 in MPEC 2010-D59 -- 2009 UN3, 2001 PT9, 2000 CO101 |
| 240 | Herrenberg Obs. in Germany, 1 in MPEC 2010-D59 -- 2002 LV |
| 950. | Ovidiu Vaduvescu via La Palma in the Canary Islands, 2 in MPEC 2010-D59 -- 2010 DJ1, 2010 CF55 |
| H13 | Lenomiya Obs. in Arizona, 2 in MPEC 2010-D59 -- 2002 XY38, 162998 |
| B33 | Libbiano Obs. in Italy, 2 in MPEC 2010-D59 -- 2010 BC3, 2010 BB3 |
| 5682 | David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-D58 -- 2005 YU55 |
| G96 | Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-D59 -- 25143 |
| J93 | Mt. Tuffley Obs. in England, 3 in MPEC 2010-D59 -- 2009 UN3, 2001 PT9, 54789 |
| D21 | Shenton Park Obs. in Western Australia, 1 in MPEC 2010-D60 -- 2010 DJ1 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 7 in MPECs 2010-D59 & 2010-D60 -- 2010 DJ1, 2010 DA, 2010 CR1, 2009 FY4, 2006 DS14, 2006 BN6, 142464 |
| 691 | Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-D59 -- 144861 |
| 6738 | Deronda Mayes via Table Mtn. Obs. in southern California, 1 in MPEC 2010-D59 -- 2010 CH18 |
| 926 | Tenagra II Obs. in Arizona, 9 in MPEC 2010-D59 -- 2010 DY1, 2010 DW1, 2010 DO, 2010 DN, 2010 DK, 2010 DJ1, 2010 CP44, 2010 CP19, 2010 CJ18 |
| C00 | Velikie Luki Obs. in Russia, 1 in MPEC 2010-D59 -- 3554 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 21 February '10
At last check (NEODyS and JPL at 2358 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.
Chronology on 21 February '10
Times are UTC for when items were noted or added by The Tracking News.
| 1912 | Grabbed MPEC 2010-D60 - 2010 DJ1 - see above |
| 1732 | Grabbed MPEC 2010-D59 - Daily Orbit Update - see above |
| 0527 | Grabbed MPEC 2010-D58 - 2005 YU55 - see above |
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