First observations from the WISE infrared space telescope were reported yesterday with its January 12th discovery of asteroid 2010 AB78. Due to fixed pointing from polar orbit along Earth's day-night terminator, immediate ground-based confirmation of coming WISE discoveries will be critical. Illustration courtesy of the WISE mission.
Contents on 23 January '10
- IAU Minor Planet Center
- NEOCP Activity -- three listings: 3 updated
- New MPECs -- three MPECs
- Observers -- 25 observing facilities
- Impact Risk Monitoring -- two 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, 
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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 23 January '10
The MPC's NEO Confirmation Page has 3 listings: 3 updated
When last checked at 2310 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three updated listings. The Tracking News counted a total of four listings on the NEOCP at some point on this day.
New MPECs on 23 January '10
Minor Planet Electronic Circulars
There were three MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-B34 time-stamped "07:15 UT" - Daily Orbit Update - see below
- MPEC 2010-B35 time-stamped "20:36 UT" - 2010 BT3 - see below
- MPEC 2010-B36 time-stamped "23:21 UT" - Comet C/2010 B1 (Cardinal)
MPEC 2010-B36 - "23:21 UT" - Comet C/2010 B1 (Cardinal)
- CK10B010 C/2010 B1 (Cardinal) (i=101.9°, q=2.923 AU, TP=2011 Feb. 6.708 TT) from Rothney Astrophysical Obs. (Jan. 19.22-29p5), Moriyama Obs. (Jan. 22.63-64p2 & 22.77-78p2), San Marcello Pistoiese Obs. (Jan. 22.76-77p3), Raheny Obs. (Jan. 22.78-80p6), Engelhardt Obs. Zelenchukskaya Station (Jan. 22.79-80p3), Berta Obs. (Jan. 22.81-84p2), Montcabre Obs. (Jan. 22.82-84p4), Farra d'Isonzo Obs. (Jan. 22.88p2), Carmelita Obs. (Jan. 22.89-90p3), Castelmartini Obs. (Jan. 22.97-98p4), CAST Obs. (Jan. 23.82-83p2), Schiaparelli Obs. (Jan. 23.88-89p3), Sormano Obs. (Jan. 23.88-89p4), and Libbiano Obs. (Jan. 23.95-96p2)
MPEC 2010-B35 - "20:36 UT" - 2010 BT3
- K10B03T 2010 BT3 (H=21.7 ~155m) was discovered at 0236 UT on 23 Jan. by Moletai Obs., which observed it at Jan. 23.11-16p3. The discovery was confirmed by Remanzacco Obs. (Jan. 23.76-77p2), San Marcello Pistoiese Obs. (Jan. 23.78p3), and CAST Obs. (Jan. 23.84p2).
<< DOU on 23 Jan. '10 >> MPEC 2010-B34 - "07:15 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K10B02U 2010 BU2 (small asteroid, arc=2 days, H=24.8 ~37m) from Jurassien-Vicques Obs. (Jan. 22.73-77p2)
- K10B02L 2010 BL2 (i=60.6°, Q=4.291 AU, arc=3 days, H=16.1 ~2.04 km, q=0.497 AU) from the Siding Spring Survey (SSS) (Jan. 21.43p1, 21.57p1, 22.44p1 & 22.54p1)
- Observations of recently (no longer) risk-listed objects
- K09Y06S 2009 YS6 (i=147.8°, q=1.617 AU, Q=38.721 AU, arc=36 days, H=14.1 ~5.13 km) from David Asher via Faulkes Telescope North (Jan. 22.43-44p2)
- Observations of small asteroids (H>22.0)
- K10B00C 2010 BC (arc=6 days, H=22.2 ~123m) from Stia Obs. (Jan. 21.90-93p5)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K10B02K 2010 BK2 (arc=3 days, H=21.9 ~141m) from SSS (Jan. 21.51-53p3) and Faulkes Telescope South (Jan. 22.44-46p8)
- Observations of other objects
- K10B03B 2010 BB3 (arc=2 days, H=19.8 ~371m) from SSS (Jan. 22.66-67p2)
- K10A60O 2010 AO60 (arc=7 days, H=21.5 ~170m) from Stia Obs. (Jan. 21.86-89p4)
- K10A30H 2010 AH30 (i=43.0°, arc=12 days, H=18.4 ~708m) from Asher/Faulkes North (Jan. 22.43p2)
- K09U03N 2009 UN3 (i=37.4°, arc=95 days, H=17.7 ~977m) from SSS (Jan. 22.57p2)
- K07U03R 2007 UR3 (arc=3 opp, H=21.1 ~204m) from Jurassien-Vicques Obs. (Jan. 22.77p1)
- K05Q00L 2005 QL (arc=2 opp, H=18.7 ~616m) from San Marcello Pistoiese Obs. (Jan. 21.79-82p3)
- K02N16W 2002 NW16 (arc=2 opp, H=18.1 ~812m) from Castelmartini Obs. (Jan. 19.86p3)
- L8863 218863 2006 WO127 from SSS (Jan. 21.49-50p2)
- F3219 153219 2000 YM29 from Stia Obs. (Jan. 21.75-79p4)
- E1484 141484 2002 DB4 from SSS (Jan. 21.46-47p2)
- D8937 138937 2001 BK16 from Castelmartini Obs. (Jan. 19.90p1)
- 54789 54789 2001 MZ7 from Wishing Star Obs. (Jan. 22.18-21p3) and the Spaceguard Centre (Jan. 22.00p3)
- 04486 4486 Mithra (1987 SB) from La Sagra Obs. (Jan. 22.14-17p3)
- 04015 4015 Wilson-Harrington (1979 VA) from Castelmartini Obs. (Jan. 19.87p3) and Gualba Obs. (Jan. 21.80p1)
- 03552 3552 Don Quixote (1983 SA) from Castelmartini Obs. (Jan. 21.71-72p3)
- 01627 1627 Ivar (1929 SH) from La Sagra Obs. (Jan. 22.04-07p3)
- 00433 433 Eros (1898 DQ) from Castelmartini Obs. (Jan. 21.71p3)
Observers on 23 January '10
A total of 25 observing facilities appeared in this day's MPECs.
| Code | Observer / observatory |
|---|---|
| C12 | Berta Obs., 1 in MPEC 2010-B36 -- C/2010 B1 |
| 235 | CAST Obs. in Italy, 2 in MPECs 2010-B35 & 2010-B36 -- 2010 BT3, C/2010 B1 |
| B20 | Carmelita Obs. in Spain, 1 in MPEC 2010-B36 -- C/2010 B1 |
| 160 | Castelmartini Obs. in Italy, 6 in MPECs 2010-B34 & 2010-B36 -- C/2010 B1, 2002 NW16, 138937, 4015, 3552, 433 |
| 114 | Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2010-B36 -- C/2010 B1 |
| 595 | Farra d'Isonzo Obs. in Italy, 1 in MPEC 2010-B36 -- C/2010 B1 |
| F655 | David Asher in Northern Ireland via Faulkes Telescope North in Hawaii, 2 in MPEC 2010-B34 -- 2010 AH30, 2009 YS6 |
| E10 | Faulkes Telescope South in New South Wales, 1 in MPEC 2010-B34 -- 2010 BK2 |
| 442 | Gualba Obs. in Spain, 1 in MPEC 2010-B34 -- 4015 |
| 185 | Jurassien-Vicques Obs. in Switzerland, 2 in MPEC 2010-B34 -- 2010 BU2, 2007 UR3 |
| J75 | La Sagra Obs. in Spain, 2 in MPEC 2010-B34 -- 4486, 1627 |
| B33 | Libbiano Obs. in Italy, 1 in MPEC 2010-B36 -- C/2010 B1 |
| 152 | Moletai Obs. in Lithuania, 1 in MPEC 2010-B35 -- 2010 BT3 |
| 213 | Montcabre Obs. in Spain, 1 in MPEC 2010-B36 -- C/2010 B1 |
| 900 | Moriyama Obs. in Japan, 1 in MPEC 2010-B36 -- C/2010 B1 |
| J41 | Raheny Obs. in Ireland, 1 in MPEC 2010-B36 -- C/2010 B1 |
| 473 | Remanzacco Obs. in Italy, 1 in MPEC 2010-B35 -- 2010 BT3 |
| 661 | Rothney Astrophysical Obs. in Alberta, 1 in MPEC 2010-B36 -- C/2010 B1 |
| 104 | San Marcello Pistoiese Obs. in Italy, 3 in MPECs 2010-B34, 2010-B35 & 2010-B36 -- 2010 BT3, C/2010 B1, 2005 QL |
| 204 | Schiaparelli Obs. in Italy, 1 in MPEC 2010-B36 -- C/2010 B1 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 6 in MPEC 2010-B34 -- 2010 BL2, 2010 BK2, 2010 BB3, 2009 UN3, 218863, 141484 |
| 587 | Sormano Obs. in Italy, 1 in MPEC 2010-B36 -- C/2010 B1 |
| J26 | Spaceguard Centre in Wales, 1 in MPEC 2010-B34 -- 54789 |
| A78 | Stia Obs. in Italy, 3 in MPEC 2010-B34 -- 2010 BC, 2010 AO60, 153219 |
| I15 | Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-B34 -- 54789 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 23 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 BU2 | NEODyS | 1637 | R E M O V E D | - | |||||
| JPL Sentry | 1637 | R E M O V E D | JPL: Risk listing removed at 1049 UTC. | ||||||
| 2010 BL2 | NEODyS | 1637 | R E M O V E D | - | |||||
| JPL Sentry | 1637 | R E M O V E D | JPL: Risk listing removed at 1052 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.
Chronology on 23 January '10
Times are UTC for when items were noted or added by The Tracking News.
| 0000 1/24 | Grabbed MPEC 2010-B36 - Comet C/2010 B1 (Cardinal) - see above |
| 2122 | Grabbed MPEC 2010-B35 - 2010 BT3 - see above |
| 1637 | Noted that JPL Sentry has removed 2010 BL2 as an impact risk - see above Noted that NEODyS has removed 2010 BL2 as an impact risk - see above Noted that JPL Sentry has removed 2010 BU2 as an impact risk - see above Noted that NEODyS has removed 2010 BU2 as an impact risk - see above Grabbed MPEC 2010-B34 - Daily Orbit Update - see above |
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