2007 TU24 on 24 Jan. from Goldstone 
radar. Credit NASA/JPL-Caltech.

These radar images come from Goldstone's 70-meter dish catching 2007 TU24 when it was just over eleven lunar distances (LD) away on January 24th. At 0834 UTC tomorrow it will pass Earth at 1.44 LD, observable in backyard telescopes. JPL describes 2007 TU24 as "somewhat asymmetrical in shape, with a diameter [of] roughly 250 meters." See A/CC's 2007 TU24 links for more info. Credit: NASA/JPL-Caltech.


Contents  on 28 January '08

Resources:

The latest A/CC news is available via framed access, RSS news feed 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 28 January '08

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty and hasn't been noted by The Tracking News as being active yet today (last checked at 2354 UTC).

New MPECs  on 28 January '08

Minor Planet Electronic Circulars

As of last check at 2354 UTC, there have been six MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2008-B57 - "15:48 UT" - Observations of Comets


MPEC 2008-B56 - "15:34 UT" - Comet P/2008 A2 (LINEAR)


MPEC 2008-B55 - "15:30 UT" - Comet C/2008 A1 (McNaught)


MPEC 2008-B54 - "15:26 UT" - Comet C/2007 Y2 (McNaught)


<< DOU on 28 Jan. '08 >>  MPEC 2008-B53 - "07:06 UT" - Daily Orbit Update


MPEC 2008-B52 - "03:36 UT" - 2008 AE

Observers  on 28 January '08

A total of 62 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 13 in MPEC 2008-B57 -- C/2007 U1, C/2006 W3, C/2006 OF2, C/2006 K1, 195P, 192P, 93P, 65P, 50P, 46P, 29P, 17P, 8P
B37Ametlla del Valles Obs. in Spain, 1 in MPEC 2008-B57 -- 110P
7054Andrew Becker via Apache Point Obs. in New Mexico, 1 in MPEC 2008-B53 -- 2006 SU131
H55Astronomical Research Obs. (ARO) in Illinois, 20 in MPEC 2008-B53 -- 2008 BX2, 2008 BV2, 2008 BU2, 2008 BT2, 2008 BS2, 2008 BE, 2008 AZ30, 2008 AS28, 2008 AP33, 2008 AN33, 2008 AM33, 2008 AF4, 2007 XJ16, 2007 WV3, 2007 VH3, 2007 TD71, 2004 BG41, 2003 AK18, 138205, 136618
J51Atlante Obs. in the Canary Islands, 2 in MPEC 2008-B57 -- 128P, 29P
467Auckland Obs. in New Zealand, 6 in MPECs 2008-B55 & 2008-B57 -- C/2008 A1, C/2007 Q3, C/2006 U6, C/2006 S5, C/2006 Q1, 8P
A81Balzaretto Obs. in Italy, 2 in MPEC 2008-B57 -- C/2006 S5, 29P
170Begues Obs. in Spain, 11 in MPEC 2008-B57 -- C/2007 U1, C/2007 S2, P/2007 C2, C/2006 S5, 195P, 128P, 110P, 79P, 74P, 29P, 17P
726Brainerd Obs. in Minnesota, 4 in MPECs 2008-B53 & 2008-B57 -- 2005 TU45, 1989 AZ, 170891, 29P
235CAST Obs. in Italy, 8 in MPEC 2008-B57 -- C/2006 W3, C/2006 S5, 128P, 110P, 93P, 46P, 29P, 17P
B20Carmelita Obs. in Spain, 5 in MPEC 2008-B57 -- 124P, 93P, 50P, 29P, 17P
B53Casal Lumbroso Obs., 3 in MPEC 2008-B57 -- C/2006 S5, 110P, 29P
A77Chante-Perdrix Obs. in France, 4 in MPEC 2008-B57 -- P/2007 V1, 192P, 29P, 17P
J36El Olivo Obs. in Spain, 7 in MPECs 2008-B56 & 2008-B57 -- P/2008 A2, C/2007 S2, 110P, 74P, 65P, 29P, 17P
734Farpoint Obs. in Kansas, 2 in MPEC 2008-B53 -- 2008 BX2, 2008 BU2
B34Green Island Obs. in Cyprus, 1 in MPEC 2008-B53 -- 2007 TU24
458Guadarrama Obs. in Spain, 2 in MPEC 2008-B57 -- 93P, 29P
442Gualba Obs. in Spain, 3 in MPEC 2008-B57 -- 50P, 29P, 17P
379Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2008-B53 -- 2008 AF4, 2005 TU45
J39Ingenio Obs. in the Canary Islands, 5 in MPEC 2008-B57 -- C/2006 S5, C/2006 K1, 110P, 74P, 29P
J44Iturrieta Obs. in Spain, 1 in MPEC 2008-B53 -- 2007 TU24
246KLENOT in the Czech Republic, 1 in MPEC 2008-B57 -- P/2007 V1
415Kambah Obs. in the Australian Capital Territory, 4 in MPECs 2008-B53, 2008-B54, 2008-B55 & 2008-B57 -- C/2008 A1, C/2007 Y2, 2007 TU24, C/2006 Q1
585Kiev Comet Station in the Ukraine, 2 in MPEC 2008-B57 -- C/2006 W3, 192P
046Klet Obs. in the Czech Republic, 2 in MPEC 2008-B57 -- C/2006 W3, C/2006 S5
704LINEAR in New Mexico, 1 in MPEC 2008-B57 -- 191P
699LONEOS in Arizona, 1 in MPEC 2008-B57 -- 79P
J87La Canada Obs. in Spain, 1 in MPEC 2008-B57 -- 93P
J76La Murta Obs. in Spain, 6 in MPECs 2008-B53 & 2008-B57 -- 2007 TU24, 110P, 93P, 46P, 29P, 17P
J38La Vara Obs. in Spain, 13 in MPEC 2008-B57 -- P/2007 H1, C/2006 W3, C/2006 S5, 191P, 124P, 117P, 110P, 93P, 65P, 50P, 46P, 29P, 17P
J59Linceo Obs. in Spain, 1 in MPEC 2008-B57 -- C/2006 S5
130Lumezzane Obs. in Italy, 1 in MPEC 2008-B57 -- 79P
J40Malaga Obs. in Spain, 3 in MPEC 2008-B57 -- C/2006 W3, 50P, 17P
118Modra Obs. in Slovakia, 3 in MPECs 2008-B56 & 2008-B57 -- P/2008 A2, P/2007 T6, C/2006 W3
J46Montana Blanca Obs. in the Canary Islands, 2 in MPEC 2008-B57 -- 50P, 29P
213Montcabre Obs. in Spain, 11 in MPECs 2008-B56 & 2008-B57 -- P/2008 A2, P/2007 T6, C/2007 T5, C/2006 W3, C/2006 S5, 124P, 110P, 46P, 29P, 17P, 8P
945Monte Deva Obs. in Spain, 8 in MPEC 2008-B57 -- C/2007 W1, C/2006 S5, 124P, 110P, 93P, 46P, 29P, 17P
B06Montseny Obs. in Spain, 1 in MPEC 2008-B57 -- 110P
900Moriyama Obs. in Japan, 3 in MPEC 2008-B57 -- C/2006 W3, 110P, 17P
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPEC 2008-B57 -- C/2007 W1, 172P
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2008-B52 -- 2008 AE
608NEAT's USAF Haleakala telescope in Hawaii, 1 in MPEC 2008-B52 -- 2008 AE
A13Naef Obs. in Switzerland, 2 in MPEC 2008-B53 -- 2007 PS9, 2002 AV31
J47Nazaret Obs. in Spain, 8 in MPECs 2008-B56 & 2008-B57 -- P/2008 A2, C/2006 S5, 128P, 110P, 74P, 29P, 17P, 8P
423North Ryde Obs. in New South Wales, 3 in MPECs 2008-B54, 2008-B55 & 2008-B57 -- C/2008 A1, C/2007 Y2, C/2007 Q3
B49Paus Obs. in Spain, 7 in MPEC 2008-B57 -- P/2007 T6, C/2007 T5, P/2007 C2, 172P, 110P, 79P, 29P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 13 in MPECs 2008-B53 & 2008-B57 -- 2007 YX1, 2007 VW137, 2007 TU24, C/2006 W3, 85804, 7092, 4954, 4544, 1685, 124P, 50P, 29P, 17P
941Pla D'Arguines Obs. in Spain, 1 in MPEC 2008-B57 -- 110P
J53Posadas Obs. in Spain, 2 in MPEC 2008-B57 -- P/2007 C2, C/2006 S5
473Remanzacco Obs. in Italy, 3 in MPECs 2008-B53, 2008-B56 & 2008-B57 -- P/2008 A2, 2007 TU24, 110P
939Rodeno Obs. in Spain, 7 in MPEC 2008-B57 -- C/2006 W3, C/2006 S5, 117P, 110P, 46P, 29P, 17P
619Sabadell Obs. in Spain, 4 in MPEC 2008-B57 -- 93P, 46P, 29P, 17P
233San Vito Obs. in Italy, 4 in MPEC 2008-B57 -- C/2006 W3, 110P, 50P, 29P
B56Sant Pere Obs. in Spain, 2 in MPEC 2008-B57 -- 29P, 17P
204Schiaparelli Obs. in Italy, 4 in MPEC 2008-B57 -- C/2007 U1, 110P, 29P, 8P
147Suno Obs. in Italy, 2 in MPECs 2008-B56 & 2008-B57 -- P/2008 A2, 29P
B30Szamotuly-Galowo Obs. in Poland, 9 in MPEC 2008-B57 -- C/2006 W3, C/2006 S5, 192P, 110P, 74P, 65P, 50P, 29P, 17P
673Table Mtn. Obs. in southern California, 1 in MPEC 2008-B56 -- P/2008 A2
H53Thompsonville Obs. in Illinois, 7 in MPECs 2008-B53 & 2008-B57 -- 2005 XD1, 90403, 170891, 154347, 153591, 5131, 29P
J35Tucci Obs. in Spain, 1 in MPEC 2008-B57 -- 29P
J70Vega del Thader Obs. in Spain, 5 in MPECs 2008-B56 & 2008-B57 -- P/2008 A2, C/2006 OF2, 46P, 29P, 8P
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2008-B57 -- P/2007 H1, 93P

Impact Risk Monitoring  on 28 January '08

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2354 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of objects under current observation.
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.
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
2008 AF4NEODyS14492067-209091.62e-06-3.49-3.620NEODyS: "Based on 304 optical observations (of which 3 are rejected as outliers) from 2008/01/10.397 to 2008/01/27.727."

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 28 January '08

Times are UTC for when items were noted or added by The Tracking News.

1609Grabbed MPEC 2008-B54 - Comet C/2007 Y2 (McNaught) - see above
Grabbed MPEC 2008-B55 - Comet C/2008 A1 (McNaught) - see above
Grabbed MPEC 2008-B56 - Comet P/2008 A2 (LINEAR) - see above
Grabbed MPEC 2008-B57 - Observations of Comets - see above
1449Noted that NEODyS has updated its 2008 AF4 risk assessment - see above
Grabbed MPEC 2008-B53 - Daily Orbit Update - see above
0539Grabbed MPEC 2008-B52 - 2008 AE - see above