Mars meterorite found by MER Opportunity. 
Credit: NASA/JPL-Caltech/Cornell Univ.

This stereo pair of the half-meter-long iron-nickle meteorite, Oilean Ruaidh, gives a different view from that yesterday, all from MER Opportunity on Mars. Note the rover's tracks in the background. See larger images and a 3D anaglyph version here, and some raw frames here and here. Credit: NASA/JPL-Caltech/Cornell Univ.


Contents  on 8 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 8 October '10

The MPC's NEO Confirmation Page has 1 listing: 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one updated listing. So far The Tracking News has counted a total of nine 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 8 October '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-T58 - "18:52 UT" - 2010 TQ19


MPEC 2010-T57 - "18:47 UT" - 2010 TP19


<< DOU on 8 Oct. '10 >>  MPEC 2010-T56 - "06:07 UT" - Daily Orbit Update


MPEC 2010-T55 - "00:29 UT" - 2010 TK19


MPEC 2010-T54 - "00:26 UT" - 2010 TJ19


MPEC 2010-T53 - "00:23 UT" - 2010 TH19


MPEC 2010-T52 - "00:19 UT" - 2010 TG19

Observers  on 8 October '10

A total of 28 observing facilities appear in today's MPECs.

CodeObserver / observatory
B03Alter Satzberg Obs. in Austria, 2 in MPECs 2010-T53 & 2010-T55 -- 2010 TK19, 2010 TH19
H21Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2010-T52, 2010-T53, 2010-T54, 2010-T56, 2010-T57 & 2010-T58 -- 2010 TU5, 2010 TQ19, 2010 TP19, 2010 TM4, 2010 TM3, 2010 TK6, 2010 TJ19, 2010 TH19, 2010 TG19, 2010 RN80, 2010 RC130, 2010 PR66
A81Balzaretto Obs. in Italy, 4 in MPEC 2010-T56 -- 2010 RP80, 2010 RN80, 2010 MR87, 137032
300Bisei Spaceguard Center in Japan, 2 in MPECs 2010-T52 & 2010-T53 -- 2010 TH19, 2010 TG19
703Catalina Sky Survey (CSS) in Arizona, 12 in MPECs 2010-T52, 2010-T53, 2010-T54, 2010-T55, 2010-T56 & 2010-T58 -- 2010 TQ19, 2010 TK19, 2010 TJ19, 2010 TH19, 2010 TG19, 2010 QD2, 2007 BG49, 2002 DY3, 2000 TJ1, 137062, 12538, 7336
470Ceccano Obs. in Italy, 1 in MPEC 2010-T53 -- 2010 TH19
B50Corner Obs. in Germany, 1 in MPEC 2010-T56 -- 2010 LY63
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 4 in MPEC 2010-T56 -- 2010 RT30, 2010 RM80, 2010 RF, 2010 RE12
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 2 in MPECs 2010-T55 & 2010-T56 -- 2010 TK19, 2003 UV11
651Grasslands Obs. in Arizona, 1 in MPEC 2010-T58 -- 2010 TQ19
A17Guidestar Obs. in Germany, 1 in MPEC 2010-T58 -- 2010 TQ19
695]Mark Trueblood via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2010-T56 -- 2010 HQ80
704LINEAR in New Mexico, 10 in MPEC 2010-T56 -- 2010 TM3, 2010 SD13, 2010 RP80, 2010 LR68, 65679, 161998, 12923, 11885, 4486, 2212
H01Magdalena Ridge Obs. (MRO) in New Mexico, 11 in MPECs 2010-T52, 2010-T53, 2010-T54, 2010-T55, 2010-T56, 2010-T57 & 2010-T58 -- 2010 TU5, 2010 TQ19, 2010 TP19, 2010 TM, 2010 TK19, 2010 TJ19, 2010 TH19, 2010 TG19, 2010 SZ16, 2010 SJ15, 2010 SB
474Mt. John Obs. in New Zealand, 2 in MPECs 2010-T53 & 2010-T55 -- 2010 TK19, 2010 TH19
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2010-T56 & 2010-T57 -- 2010 TP19, 2010 SB
A53Peschiera del Garda Obs. in Italy, 2 in MPEC 2010-T56 -- 2010 LY63, 137032
854Sabino Canyon Obs. in Arizona, 3 in MPECs 2010-T53, 2010-T54 & 2010-T55 -- 2010 TK19, 2010 TJ19, 2010 TH19
H36Sandlot Obs. in Kansas, 6 in MPECs 2010-T52, 2010-T53, 2010-T54, 2010-T55, 2010-T57 & 2010-T58 -- 2010 TQ19, 2010 TP19, 2010 TK19, 2010 TJ19, 2010 TH19, 2010 TG19
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-T56 -- 2010 NG3
510Siegen Obs. in Germany, 1 in MPEC 2010-T56 -- 137032
691Spacewatch 0.9m telescope in Arizona, 6 in MPEC 2010-T56 -- 2010 SY3, 52768, 249595, 248818, 21374, 170086
291Spacewatch 1.8m telescope in Arizona, 13 in MPECs 2010-T56 & 2010-T57 -- 2010 TU5, 2010 TP19, 2010 TL, 2010 SR3, 2010 SL13, 2010 SG13, 2010 SE12, 2010 SC17, 2010 SA17, 2010 RR80, 2010 QD2, 2010 OF101, 2010 EX119
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2010-T58 -- 2010 TQ19
I19Tanti Obs. in Argentina, 8 in MPEC 2010-T56 -- 2010 SX11, 2010 SK15, 2010 SD13, 2010 RO82, 2010 RK64, 2010 RK43, 2010 RC130, 2010 OC127
B42Vitebsk Obs. in Belarus, 1 in MPEC 2010-T53 -- 2010 TH19
C51WISE in Earth polar orbit, 1 in MPEC 2010-T56 -- 1999 RH33
I15Wishing Star Obs. in Rhode Island, 2 in MPEC 2010-T56 -- 2010 RN80, 2010 MF1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 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 TG19NEODyS15052017-2090541.91e-06-4.73-5.330NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2010/10/07.143 to 2010/10/07.520."
JPL Sentry04272017-21101504.6e-06-4.54-5.330JPL: "Analysis based on 19 observations spanning .37640 days (2010-Oct-07.14238 to 2010-Oct-07.51878)." Diameter approximately 0.054 km. from mean, weighted H=24.0.
2010 TU5JPL Sentry15092033-206783.2e-09-5.64-6.090JPL: "Analysis based on 38 observations spanning 4.7903 days (2010-Oct-03.41063 to 2010-Oct-08.20089)." Diameter approximately 0.425 km. from mean, weighted H=19.5.
NEODyS1504R E M O V E D-
2010 TMJPL Sentry15092023-2110695.0e-07-3.28-3.790JPL: "Analysis based on 19 observations spanning 5.0365 days (2010-Oct-02.44882 to 2010-Oct-07.48536)." Diameter approximately 0.517 km. from mean, weighted H=19.1.
NEODyS15042027-208952.02e-07-3.63-3.980NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2010/10/02.450 to 2010/10/07.486."
2010 SJ15JPL Sentry1509R E M O V E DJPL: Risk listing removed at 0852 UTC.
2010 RM80NEODyS16012085-208922.96e-07-8.31-8.320NEODyS: "Based on 53 optical observations (of which 0 are rejected as outliers) from 2010/09/11.286 to 2010/09/19.203."
JPL Sentry15092085-2110171.2e-05-6.82-7.260JPL: "Analysis based on 53 observations spanning 7.9169 days (2010-Sep-11.28495 to 2010-Sep-19.20187)." Diameter approximately 0.009 km. from mean, weighted H=27.9.

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 8 October '10

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

1934Grabbed MPEC 2010-T57 - 2010 TP19 - see above
Grabbed MPEC 2010-T58 - 2010 TQ19 - see above
1601Noted that NEODyS has updated its 2010 RM80 risk assessment - see above
1509Noted that JPL Sentry has updated its 2010 RM80 risk assessment - see above
Noted that JPL Sentry has removed 2010 SJ15 as an impact risk - see above
Noted that JPL Sentry has updated its 2010 TM risk assessment - see above
Noted that JPL Sentry has updated its 2010 TU5 risk assessment - see above
1504Noted that NEODyS has posted 2010 TG19 as an impact risk - see above
Noted that NEODyS has updated its 2010 TM risk assessment - see above
Noted that NEODyS has removed 2010 TU5 as an impact risk - see above
Grabbed MPEC 2010-T56 - Daily Orbit Update - see above
0427Noted that JPL Sentry has posted 2010 TG19 as an impact risk - see above
0036Grabbed MPEC 2010-T52 - 2010 TG19 - see above
Grabbed MPEC 2010-T53 - 2010 TH19 - see above
Grabbed MPEC 2010-T54 - 2010 TJ19 - see above
Grabbed MPEC 2010-T55 - 2010 TK19 - see above