Contents on 16 March '10
- IAU Minor Planet Center
- NEOCP Activity -- ten listings: 2 new, 8 updated
- New MPECs -- seven MPECs
- Observers -- 32 observing facilities
- Impact Risk Monitoring -- six objects
- 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 16 March '10
The MPC's NEO Confirmation Page has 10 listings: 2 new, 8 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and eight updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of seventeen 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 16 March '10
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-F01 time-stamped "00:15 UT" - Comet C/2010 E3 (WISE) - see below
- MPEC 2010-F02 time-stamped "00:27 UT" - Comet P/2002 CF140 = 2010 E4 (LINEAR) - see below
- MPEC 2010-F03 time-stamped "06:11 UT" - Daily Orbit Update - see below
- MPEC 2010-F04 time-stamped "16:56 UT" - 2010 EV45 - see below
- MPEC 2010-F05 time-stamped "17:01 UT" - 2010 EW45 - see below
- MPEC 2010-F06 time-stamped "17:17 UT" - 2010 EZ45 - see below
- MPEC 2010-F07 time-stamped "17:24 UT" - 2010 EA46
MPEC 2010-F07 - "17:24 UT" - 2010 EA46
- K10E46A 2010 EA46 (risk-listed, Q=4.820 AU, H=23.8 ~59m) was discovered at 1049 UT on 15 March by the Catalina Sky Survey (CSS), which observed it at March 15.40-46p8. The discovery was confirmed by Saint-Barthelemy Obs. (March 16.03-07p3), Great Shefford Obs. (March 16.04-06p3), and Tenagra II Obs. (March 16.48-49p3).
MPEC 2010-F06 - "17:17 UT" - 2010 EZ45
- K10E45Z 2010 EZ45 (small asteroid, H=22.4 ~112m) was discovered at 0850 UT on 15 March by CSS, which observed it at March 15.37-39p4 and 15.45-46p4. The discovery was confirmed by Tenagra II Obs. (March 15.52p1 & 16.47-48p3), Mt. John Obs. (March 15.59-60p5), Saint-Barthelemy Obs. (March 15.91-93p3), Gnosca Obs. (March 15.91-93p2), Monte Baldo Obs. (March 15.94p4), Sormano Obs. (March 15.95p3), New Millennium Obs. (March 15.97-98p4), Castelmartini Obs. (March 16.00-01p5), Vallemare di Borbona Obs. (March 16.07-08p3), and Sabino Canyon Obs. (March 16.35-36p3).
MPEC 2010-F05 - "17:01 UT" - 2010 EW45
- K10E45W 2010 EW45 (risk-listed, Earth MOID=1.0 LD, H=17.6 ~1.02 km) was discovered at 0237 UT on 15 March by the Mt. Lemmon Survey (MLS), which observed it at March 15.11-15p7 and 16.11-12p4. The discovery was confirmed by Great Shefford Obs. (March 15.84-86p3), Tenagra II Obs. (March 16.11-12p3), and the Spacewatch 1.8m telescope (March 16.11-12p3).
MPEC 2010-F04 - "16:56 UT" - 2010 EV45
- K10E45V 2010 EV45 (H=19.8 ~371m) was discovered at 0211 UT on 15 March by La Sagra Obs., which observed it at March 15.09-12p3, 15.18-19p3, and 16.08p2. The discovery was confirmed by Great Shefford Obs. (March 16.07-08p3), Sabino Canyon Obs. (March 16.45-47p2), CSS (March 16.46-52p8), and Tenagra II Obs. (March 16.50-51p3).
<< DOU on 16 Mar. '10 >> MPEC 2010-F03 - "06:11 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K10D56M 2010 DM56 (arc=21 days, H=19.8 ~371m) from the Spacewatch 0.9m telescope (March 12.16-18p3)
- K10C19S 2010 CS19 (small asteroid, arc=5 days, H=28.0 ~9m) from David Tholen's team on Mauna Kea (Feb. 20.55p2)
- Observations of recently (no longer) risk-listed objects
- K10C44N 2010 CN44 (Q=4.775 AU, arc=28 days, H=19.7 ~389m) from Spacewatch 1.8m (March 15.12-14p2)
- Observations of small asteroids (H>22.0)
- K10E43G 2010 EG43 (arc=2 days, H=25.0 ~34m) from MLS (March 15.32-34p4 & 15.39-42p4)
- K10E21G 2010 EG21 (arc=6 days, H=24.2 ~49m) from Walnut Creek Obs. (March 15.24p3)
- K10E11X 2010 EX11 (arc=12 days, H=23.8 ~59m) from Spacewatch 0.9m (March 13.49p3)
- K00R52E 2000 RE52 (arc=2 opp, H=22.3 ~117m) from Mt. John Obs. (March 15.41p4)
- Observations of other objects
- K10E44F 2010 EF44 (i=38.4°, q=0.260 AU, Q=4.941 AU, arc=0 days, H=19.8 ~371m) from Mt. John Obs. (March 15.55p4)
- K10E43Q 2010 EQ43 (i=43.5°, arc=3 days, H=18.5 ~676m) from Mt. John Obs. (March 15.58-59p4)
- K10E43J 2010 EJ43 (arc=1 day, H=20.8 ~234m) from CSS (March 15.36-38p4)
- K10E21F 2010 EF21 (Q=4.108 AU, arc=2 days, H=18.5 ~676m) from Kevin Hills via RAS Obs. Moorook (March 11.69-70p4)
- K10D56J 2010 DJ56 (arc=20 days, H=19.4 ~446m) from Spacewatch 1.8m (March 15.45-47p3)
- K10D01N 2010 DN1 (arc=26 days, H=18.6 ~645m) from Spacewatch 1.8m (March 15.16p2)
- K10CI0V 2010 CV180 (Q=4.905 AU, arc=29 days, H=18.7 ~616m) from Balzaretto Obs. (March 14.95p2), CSS (March 15.29-30p3), Peschiera del Garda Obs. (March 15.85-88p3), and Madonna di Dossobuono Obs. (March 15.92-93p3)
- K10CI0C 2010 CC180 (arc=2 opp, H=18.7 ~616m) from Balzaretto Obs. (March 14.85-86p4), Peschiera del Garda Obs. (March 15.91-94p4), and Madonna di Dossobuono Obs. (March 15.94p3)
- K10C01R 2010 CR1 (q=0.366 AU, arc=2 opp, H=18.4 ~708m) from the Siding Spring Survey (SSS) (March 15.55p1)
- K10C01N 2010 CN1 (arc=34 days, H=19.0 ~537m) from Mt. John Obs. (March 15.39-40p4)
- K09W06R 2009 WR6 (arc=2 opp, H=18.4 ~708m) from Mt. John Obs. (March 15.36-37p4)
- K09T08G 2009 TG8 (arc=2 opp, H=19.1 ~513m) from Mt. John Obs. (March 15.43p4)
- K09SH1V 2009 SV171 (Q=4.184 AU, arc=168 days, H=19.6 ~407m) from Mt. John Obs. (March 15.45-47p4)
- K09C05Q 2009 CQ5 (arc=2 opp, H=17.6 ~1.02 km) from SSS (March 11.41-43p4)
- K08E00E 2008 EE (arc=3 opp, H=19.8 ~371m) from Balzaretto Obs. (March 14.83-84p3) and Madonna di Dossobuono Obs. (March 15.91p3)
- K06E01E 2006 EE1 (i=36.4°, arc=2 opp, H=19.8 ~371m) from Crni Vrh Obs. (March 14.92-94p4)
- K06D14S 2006 DS14 (arc=3 opp, H=20.4 ~282m) from Bigmuskie Obs. (March 15.82-86p3) and Madonna di Dossobuono Obs. (March 15.90p3)
- K06C10X 2006 CX10 (arc=3 opp, H=17.7 ~977m) from Bigmuskie Obs. (March 15.00-02p3)
- K04T13R 2004 TR13 (arc=4 opp, H=18.4 ~708m) from Madonna di Dossobuono Obs. (March 15.89p3)
- K03U12L 2003 UL12 (Q=5.602 AU, arc=3 opp, H=17.3 ~1.17 km) from MLS (March 15.43-45p4)
- K01R11Z 2001 RZ11 (i=53.1°, arc=4 opp, H=16.3 ~1.86 km) from MLS (March 15.22-24p4)
- K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from Peschiera del Garda Obs. (March 11.87-88p4) and Walnut Creek Obs. (March 15.16-17p3)
- N2382 232382 from Castelmartini Obs. (March 14.00-01p3)
- M1980 221980 1996 EO from Spacewatch 0.9m (March 15.25-29p3)
- H5706 175706 1996 FG3 from Castelmartini Obs. (March 13.00p3) and Goodricke-Pigott Obs. (March 14.18-21p3)
- G3243 163243 2002 FB3 from Balzaretto Obs. (March 14.80-81p4)
- G2998 162998 2001 SK162 from Bigmuskie Obs. (March 15.78-80p3)
- E1525 141525 2002 FV5 from CSS (March 15.46-48p4)
- 88254 88254 2001 FM129 from CSS (March 15.12-14p3)
- 86067 86067 1999 RM28 from Castelmartini Obs. (March 14.01-02p3)
- 85839 85839 1998 YO4 from San Benedetto Po Obs. (March 15.84p4)
- 68216 68216 2001 CV26 from Goodricke-Pigott Obs. (March 14.36-38p3) and CSS (March 15.45-46p4)
- 24761 24761 Ahau (1993 BW2) from Castelmartini Obs. (March 14.02p3) and Crni Vrh Obs. (March 14.81-83p4)
- 20790 20790 2000 SE45 from MLS (March 15.15-17p3)
- 11066 11066 Sigurd (1992 CC1) from Castelmartini Obs. (March 14.03-04p3)
- 10145 10145 1994 CK1 from MLS (March 15.29-31p4)
- 08567 8567 1996 HW1 from Spacewatch 0.9m (March 15.20-24p3)
- 04947 4947 Ninkasi (1988 TJ1) from SSS (March 11.64-65p2)
- 04015 4015 Wilson-Harrington (1979 VA) from MLS (March 15.16-17p3)
- 03554 3554 Amun (1986 EB) from Castelmartini Obs. (March 14.04p3), Huelva Obs. (March 15.11-14p3), and San Benedetto Po Obs. (March 15.83p4)
- 01980 1980 Tezcatlipoca (1950 LA) from SSS (March 10.75-79p4)
- 01627 1627 Ivar (1929 SH) from Castelmartini Obs. (March 14.03p3)
- 00433 433 Eros (1898 DQ) from El Maestrat Obs. (March 14.83-85p5)
MPEC 2010-F02 - "00:27 UT" - Comet P/2002 CF140 = 2010 E4 (LINEAR)
- PK10E040 P/2010 E4 (q=2.861 AU, Q=4.778 AU, TP=2009 Dec. 23.47797 TT) from La Sagra Obs. (March 11.16-19p3) and MLS (March 15.40-46p8)
- PK02CE0F P/2002 CF140 (LINEAR) (q=2.850 AU, Q=4.774 AU, TP=2002 July 7.50635 TT)
MPEC 2010-F01 - "00:15 UT" - Comet C/2010 E3 (WISE)
- CK10E030 C/2010 E3 (WISE) (i=96.5°, q=2.274 AU, TP=2010 Apr. 4.326 TT) from WISE (March 5.10p1, 5.23p1, 5.36p1, 5.63p1, 5.69p1 & 5.83p1), Astronomical Research Obs. Westfield (ARO Westfield) (March 12.06-10p3), Spacewatch 0.9m (March 12.13-14p2 & 13.16p2), Magdalena Ridge Obs. (MRO) (March 13.27-29p4 & 14.12-14p4), Great Shefford Obs. (March 14.86-88p3), and Sormano Obs. (March 15.86-87p2)
Observers on 16 March '10
A total of 32 observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| H21 | Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-F01 -- C/2010 E3 |
| A81 | Balzaretto Obs. in Italy, 4 in MPEC 2010-F03 -- 2010 CV180, 2010 CC180, 2008 EE, 163243 |
| B88 | Bigmuskie Obs. in Italy, 3 in MPEC 2010-F03 -- 2006 DS14, 2006 CX10, 162998 |
| 160 | Castelmartini Obs. in Italy, 8 in MPECs 2010-F03 & 2010-F06 -- 2010 EZ45, 86067, 24761, 232382, 175706, 11066, 3554, 1627 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2010-F03, 2010-F04, 2010-F06 & 2010-F07 -- 2010 EZ45, 2010 EV45, 2010 EJ43, 2010 EA46, 2010 CV180, 88254, 68216, 141525 |
| 106 | Crni Vrh Obs. in Slovenia, 2 in MPEC 2010-F03 -- 2006 EE1, 24761 |
| J19 | El Maestrat Obs. in Spain, 1 in MPEC 2010-F03 -- 433 |
| 143 | Gnosca Obs. in Switzerland, 1 in MPEC 2010-F06 -- 2010 EZ45 |
| 683 | Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2010-F03 -- 68216, 175706 |
| J95 | Great Shefford Obs. in England, 4 in MPECs 2010-F01, 2010-F04, 2010-F05 & 2010-F07 -- 2010 EW45, 2010 EV45, 2010 EA46, C/2010 E3 |
| J37 | Huelva Obs. in Spain, 1 in MPEC 2010-F03 -- 3554 |
| J75 | La Sagra Obs. in Spain, 2 in MPECs 2010-F02 & 2010-F04 -- 2010 EV45, P/2010 E4 |
| 560 | Madonna di Dossobuono Obs. in Italy, 5 in MPEC 2010-F03 -- 2010 CV180, 2010 CC180, 2008 EE, 2006 DS14, 2004 TR13 |
| H01 | Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-F01 -- C/2010 E3 |
| 5682 | David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-F03 -- 2010 CS19 |
| A99 | Monte Baldo Obs. in Italy, 1 in MPEC 2010-F06 -- 2010 EZ45 |
| 474 | Mt. John Obs. in New Zealand, 8 in MPECs 2010-F03 & 2010-F06 -- 2010 EZ45, 2010 EQ43, 2010 EF44, 2010 CN1, 2009 WR6, 2009 TG8, 2009 SV171, 2000 RE52 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2010-F02, 2010-F03 & 2010-F05 -- 2010 EW45, 2010 EG43, P/2010 E4, 2003 UL12, 2001 RZ11, 20790, 10145, 4015 |
| A24 | New Millennium Obs. in Italy, 1 in MPEC 2010-F06 -- 2010 EZ45 |
| A53 | Peschiera del Garda Obs. in Italy, 3 in MPEC 2010-F03 -- 2010 CV180, 2010 CC180, 2000 CO101 |
| D90` | Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-F03 -- 2010 EF21 |
| 854 | Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-F04 & 2010-F06 -- 2010 EZ45, 2010 EV45 |
| B04 | Saint-Barthelemy Obs. in Italy, 2 in MPECs 2010-F06 & 2010-F07 -- 2010 EZ45, 2010 EA46 |
| 434 | San Benedetto Po Obs. in Italy, 2 in MPEC 2010-F03 -- 85839, 3554 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 4 in MPEC 2010-F03 -- 2010 CR1, 2009 CQ5, 4947, 1980 |
| 587 | Sormano Obs. in Italy, 2 in MPECs 2010-F01 & 2010-F06 -- 2010 EZ45, C/2010 E3 |
| 691 | Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2010-F01 & 2010-F03 -- 2010 EX11, C/2010 E3, 2010 DM56, 221980, 8567 |
| 291 | Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2010-F03 & 2010-F05 -- 2010 EW45, 2010 DN1, 2010 DJ56, 2010 CN44 |
| 926 | Tenagra II Obs. in Arizona, 4 in MPECs 2010-F04, 2010-F05, 2010-F06 & 2010-F07 -- 2010 EZ45, 2010 EW45, 2010 EV45, 2010 EA46 |
| A55 | Vallemare di Borbona Obs. in Italy, 1 in MPEC 2010-F06 -- 2010 EZ45 |
| C51 | WISE in Earth polar orbit, 1 in MPEC 2010-F01 -- C/2010 E3 |
| G56 | Walnut Creek Obs. in northern California, 2 in MPEC 2010-F03 -- 2010 EG21, 2000 CO101 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 16 March '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 EA46 | JPL Sentry | 1900 | 2023-2106 | 21 | 1.0e-06 | -5.35 | -5.69 | 0 | JPL: "Analysis based on 17 observations spanning 1.0910 days (2010-Mar-15.39725 to 2010-Mar-16.48829)." Diameter approximately 0.057 km. from mean, weighted H=23.8. |
| 2010 EW45 | JPL Sentry | 2108 | 2011-2104 | 140 | 1.4e-07 | -2.30 | -2.67 | 0 | JPL: "Analysis based on 20 observations spanning 1.0136 days (2010-Mar-15.10972 to 2010-Mar-16.12334)." Diameter approximately 0.991 km. from mean, weighted H=17.7. |
| 2010 EN44 | JPL Sentry | 0548 | 2014-2109 | 313 | 9.5e-07 | -6.10 | -7.33 | 0 | JPL: "Analysis based on 6 observations spanning .33082 days (2010-Mar-12.06614 to 2010-Mar-12.39696)." Diameter approximately 0.031 km. from mean, weighted H=25.2. |
| 2010 EK44 | NEODyS | 1519 | 2020-2023 | 2 | 5.95e-10 | -5.99 | -6.00 | 0 | NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2010/03/13.360 to 2010/03/15.520." |
| 2010 DM56 | JPL Sentry | 1707 | 2071-2086 | 7 | 4.1e-06 | -2.95 | -3.33 | 0 | JPL: "Analysis based on 43 observations spanning 20.907 days (2010-Feb-19.26983 to 2010-Mar-12.1764)." Diameter approximately 0.360 km. from mean, weighted H=19.9. |
| NEODyS | 1519 | 2071-2088 | 12 | 4.22e-06 | -2.94 | -3.32 | 0 | NEODyS: "Based on 43 optical observations (of which 0 are rejected as outliers) from 2010/02/19.271 to 2010/03/12.177." | |
| 2010 CS19 | JPL Sentry | 1707 | 2104 | 4 | 3.9e-05 | -6.28 | -6.30 | 0 | JPL: "Analysis based on 45 observations spanning 5.2215 days (2010-Feb-15.32692 to 2010-Feb-20.548374)." Diameter approximately 0.009 km. from mean, weighted H=28.0. |
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 16 March '10
Times are UTC for when items were noted or added by The Tracking News.
| 2108 | Noted that JPL Sentry has posted 2010 EW45 as an impact risk - see above |
| 1900 | Noted that JPL Sentry has posted 2010 EA46 as an impact risk - see above |
| 1824 | Grabbed MPEC 2010-F05 - 2010 EW45 - see above Grabbed MPEC 2010-F06 - 2010 EZ45 - see above Grabbed MPEC 2010-F07 - 2010 EA46 - see above |
| 1707 | Noted that JPL Sentry has updated its 2010 CS19 risk assessment - see above Noted that JPL Sentry has updated its 2010 DM56 risk assessment - see above Grabbed MPEC 2010-F04 - 2010 EV45 - see above |
| 1519 | Noted that NEODyS has updated its 2010 DM56 risk assessment - see above Noted that NEODyS has posted 2010 EK44 as an impact risk - see above Grabbed MPEC 2010-F03 - Daily Orbit Update - see above |
| 0548 | Noted that JPL Sentry has posted 2010 EN44 as an impact risk - see above |
| 0143 | Grabbed MPEC 2010-F02 - Comet P/2002 CF140 = 2010 E4 (LINEAR) - see above |
| 0028 | Grabbed MPEC 2010-F01 - Comet C/2010 E3 (WISE) - see above |
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