Possible ice spotted in new Mars crater. 
Credit: NASA/JPL/Univ. of Arizona.

The Mars Reconnaissance Orbiter (MRO) often spots small impact candidates that have formed since photo surveys began. One such site was reported last week. Another recently released HiRISE image is this of a fresh impact crater (new between April 2004 and January 2010) about six meters wide that appears to reveal shiny subsurface ice. See related images and info here and here. Credit: NASA/JPL/Univ. of Arizona.


Contents  on 10 October '10

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 10 October '10

The MPC's NEO Confirmation Page has 12 listings: 2 new, 10 updated

When last checked at 2304 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and ten updated listings. Of these, seven were "one nighters." So far The Tracking News has counted a total of 23 listings on the NEOCP at some point today.

New MPECs  on 10 October '10

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been eleven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-T71 - "22:42 UT" - 2007 TB23


MPEC 2010-T70 - "22:13 UT" - 2010 TJ54


MPEC 2010-T69 - "22:09 UT" - 2010 TH54


MPEC 2010-T68 - "22:03 UT" - 2010 TG54


MPEC 2010-T67 - "21:57 UT" - 2010 TF54


MPEC 2010-T66 - "21:53 UT" - 2010 TE54


MPEC 2010-T65 - "20:33 UT" - 2010 TD54


MPEC 2010-T64 - "16:38 UT" - 2010 TC54


MPEC 2010-T63 - "16:32 UT" - 2010 TB54


<< DOU on 10 Oct. '10 >>  MPEC 2010-T62 - "06:08 UT" - Daily Orbit Update


MPEC 2010-T61 - "04:09 UT" - 2010 TZ53

Observers  on 10 October '10

A total of 35 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 2 in MPEC 2010-T62 -- 2010 TQ19, 2010 TH19
H21Astronomical Research Obs. Westfield in Illinois, 16 in MPECs 2010-T62, 2010-T63, 2010-T64, 2010-T65, 2010-T66, 2010-T67, 2010-T68, 2010-T69, 2010-T70 & 2010-T71 -- 2010 TU5, 2010 TQ19, 2010 TN3, 2010 TM3, 2010 TJ54, 2010 TH54, 2010 TG54, 2010 TG19, 2010 TF54, 2010 TE54, 2010 TD54, 2010 TC54, 2010 TB54, 2010 RS3, 2010 RC12, 2007 TB23
A74Bergen-Enkheim Obs. in Germany, 2 in MPECs 2010-T67 & 2010-T69 -- 2010 TH54, 2010 TF54
300Bisei Spaceguard Center in Japan, 4 in MPECs 2010-T67, 2010-T68, 2010-T69 & 2010-T70 -- 2010 TJ54, 2010 TH54, 2010 TG54, 2010 TF54
703Catalina Sky Survey (CSS) in Arizona, 9 in MPECs 2010-T62, 2010-T69 & 2010-T70 -- 2010 TM3, 2010 TJ54, 2010 TH54, 2010 RM42, 2010 PM10, 2000 TU28, 88959, 243147, 199145
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2010-T70 -- 2010 TJ54
448Desert Moon Obs. in New Mexico, 3 in MPEC 2010-T62 -- 2010 RR179, 2010 RL42, 1999 XR35
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 5 in MPECs 2010-T61, 2010-T62 & 2010-T67 -- 2010 TZ53, 2010 TK, 2010 TJ7, 2010 TF54, 2010 SK15
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2010-T61, 2010-T67 & 2010-T69 -- 2010 TZ53, 2010 TH54, 2010 TF54
651Grasslands Obs. in Arizona, 5 in MPECs 2010-T64, 2010-T67, 2010-T68, 2010-T69 & 2010-T70 -- 2010 TJ54, 2010 TH54, 2010 TG54, 2010 TF54, 2010 TC54
J95Great Shefford Obs. in England, 1 in MPEC 2010-T67 -- 2010 TF54
A17Guidestar Obs. in Germany, 1 in MPEC 2010-T69 -- 2010 TH54
B86Hagen Obs. in Germany, 1 in MPEC 2010-T67 -- 2010 TF54
240Herrenberg Obs. in Germany, 3 in MPEC 2010-T62 -- 2002 DY3, 152952, 138847
951Highworth Obs. in England, 1 in MPEC 2010-T67 -- 2010 TF54
H15ISON-NM Obs. in New Mexico, 1 in MPEC 2010-T62 -- 5143
B15Inastars Obs. in Germany, 1 in MPEC 2010-T67 -- 2010 TF54
704LINEAR in New Mexico, 14 in MPECs 2010-T61, 2010-T62, 2010-T64 & 2010-T67 -- 2010 TZ53, 2010 TF54, 2010 TC54, 2010 RA147, 2010 PM10, 2010 NW117, 2007 RU17, 2005 TB15, 250706, 249595, 23187, 219071, 11885, 4183
B33Libbiano Obs. in Italy, 4 in MPECs 2010-T61, 2010-T68, 2010-T69 & 2010-T70 -- 2010 TZ53, 2010 TJ54, 2010 TH54, 2010 TG54
H01Magdalena Ridge Obs. (MRO) in New Mexico, 8 in MPECs 2010-T62, 2010-T63, 2010-T65 & 2010-T68 -- 2010 TU5, 2010 TS19, 2010 TQ19, 2010 TK19, 2010 TG54, 2010 TD54, 2010 TD, 2010 TB54
G96Mt. Lemmon Survey (MLS) in Arizona, 12 in MPECs 2010-T62, 2010-T63, 2010-T65 & 2010-T68 -- 2010 TG54, 2010 TD54, 2010 TB54, 2010 ST16, 2010 SS16, 2010 SL13, 2008 CZ118, 2007 TY18, 2006 QS, 170891, 2201, 1221
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPECs 2010-T62 & 2010-T66 -- 2010 TL, 2010 TE54, 2010 SL15, 2010 RT80
H06*Rolando Ligustri in Italy via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-T70 -- 2010 TJ54
H06=program code "=" via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-T62 -- 2003 UV11
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-T62 -- 2010 SX11
473Remanzacco Obs. in Italy, 3 in MPECs 2010-T68, 2010-T69 & 2010-T70 -- 2010 TJ54, 2010 TH54, 2010 TG54
I20Rio Cuarto Obs. in Argentina, 1 in MPEC 2010-T62 -- 2010 RC130
H36Sandlot Obs. in Kansas, 7 in MPECs 2010-T63, 2010-T64, 2010-T65, 2010-T67, 2010-T68, 2010-T69 & 2010-T70 -- 2010 TJ54, 2010 TH54, 2010 TG54, 2010 TF54, 2010 TD54, 2010 TC54, 2010 TB54
204Schiaparelli Obs. in Italy, 11 in MPEC 2010-T62 -- 2010 SX11, 2010 SK15, 2010 SJ, 2010 RN80, 2010 RC130, 2010 RB130, 2010 MR87, 2003 UV11, 2002 TC70, 2000 TJ1, 250620
510Siegen Obs. in Germany, 2 in MPEC 2010-T62 -- 2010 LY63, 2003 UV11
691Spacewatch 0.9m telescope in Arizona, 4 in MPEC 2010-T62 -- 2010 RA147, 2007 RU17, 52768, 21374
291Spacewatch 1.8m telescope in Arizona, 15 in MPECs 2010-T62, 2010-T64, 2010-T65, 2010-T66 & 2010-T67 -- 2010 TM, 2010 TL, 2010 TF54, 2010 TE54, 2010 TD54, 2010 TC54, 2010 SU15, 2010 ST16, 2010 SS3, 2010 SL15, 2010 SH15, 2010 RT30, 2006 WT1, 2005 VB7, 2005 EE224
611Starkenburg Obs. in Germany, 3 in MPECs 2010-T67, 2010-T68 & 2010-T69 -- 2010 TH54, 2010 TG54, 2010 TF54
A98Taurus-1 Obs. in Belarus, 1 in MPEC 2010-T62 -- 250697
H10Tzec Maun Obs. Mayhill in New Mexico, 1 in MPEC 2010-T67 -- 2010 TF54
G56Walnut Creek Obs. in northern California, 1 in MPEC 2010-T62 -- 2010 TK19
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 October '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
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
2010 TD54JPL Sentry23042013-203521.2e-06-6.35-6.350JPL: "Analysis based on 21 observations spanning .96505 days (2010-Oct-09.33035 to 2010-Oct-10.2954)." Diameter approximately 0.006 km. from mean, weighted H=28.8.
2010 TG19NEODyS1508R E M O V E D-
2010 TMJPL Sentry15082025-2110501.3e-06-2.92-3.430JPL: "Analysis based on 29 observations spanning 6.9984 days (2010-Oct-02.44882 to 2010-Oct-09.44724)." Diameter approximately 0.499 km. from mean, weighted H=19.2.
NEODyS15082025-208395.37e-07-3.22-3.520NEODyS: "Based on 29 optical observations (of which 0 are rejected as outliers) from 2010/10/02.450 to 2010/10/09.448."
2010 TDJPL Sentry15082072-209152.3e-06-6.45-6.800JPL: "Analysis based on 34 observations spanning 8.1633 days (2010-Oct-01.20604 to 2010-Oct-09.36932)." Diameter approximately 0.014 km. from mean, weighted H=26.9.
NEODyS15082072-208562.2e-06-6.47-6.820NEODyS: "Based on 36 optical observations (of which 2 are rejected as outliers) from 2010/10/01.207 to 2010/10/09.370."
2010 GM23NEODyS06002087-209024.49e-07-6.32-6.320NEODyS: "Based on 55 optical observations (of which 1 are rejected as outliers) from 2010/04/08.312 to 2010/04/13.096."
2000 TU28JPL Sentry1508R E M O V E DJPL: Risk listing removed at 1012 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 10 October '10

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

2304Noted that JPL Sentry has posted 2010 TD54 as an impact risk - see above
Grabbed MPEC 2010-T71 - 2007 TB23 - see above
2218Grabbed MPEC 2010-T70 - 2010 TJ54 - see above
2215Grabbed MPEC 2010-T66 - 2010 TE54 - see above
Grabbed MPEC 2010-T67 - 2010 TF54 - see above
Grabbed MPEC 2010-T68 - 2010 TG54 - see above
Grabbed MPEC 2010-T69 - 2010 TH54 - see above
2135Grabbed MPEC 2010-T65 - 2010 TD54 - see above
1707Grabbed MPEC 2010-T64 - 2010 TC54 - see above
1638Grabbed MPEC 2010-T63 - 2010 TB54 - see above
1508Noted that JPL Sentry has removed 2000 TU28 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 TD risk assessment - see above
Noted that NEODyS has updated its 2010 TD risk assessment - see above
Noted that NEODyS has removed 2010 TG19 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 TM risk assessment - see above
Noted that NEODyS has updated its 2010 TM risk assessment - see above
Grabbed MPEC 2010-T62 - Daily Orbit Update - see above
0600Noted that NEODyS has updated its 2010 GM23 risk assessment - see above
0432Grabbed MPEC 2010-T61 - 2010 TZ53 - see above