Contents  on 17 September '09

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 17 September '09

The MPC's NEO Confirmation Page has 16 listings: 3 new, 13 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three new and thirteen updated listings. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 34 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 17 September '09

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 25 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2009-S27 - "23:35 UT" - 2009 SQ


MPEC 2009-S26 - "23:26 UT" - 2009 SP


MPEC 2009-S25 - "20:44 UT" - 2009 SN


MPEC 2009-S24 - "20:35 UT" - 2009 SM


MPEC 2009-S23 - "19:31 UT" - Observations of Comets


MPEC 2009-S22 - "19:18 UT" - Comet C/2009 R1 (McNaught)


MPEC 2009-S21 - "19:13 UT" - Comet P/2009 Q5 (McNaught)


MPEC 2009-S20 - "19:08 UT" - Comet P/2009 Q4 (Boattini)


MPEC 2009-S19 - "19:04 UT" - Comet P/2009 Q1 (Hill)


MPEC 2009-S18 - "18:59 UT" - Comet C/2009 P1 (Garradd)


MPEC 2009-S17 - "18:55 UT" - Comet C/2009 O4 (Hill)


MPEC 2009-S16 - "18:50 UT" - Comet P/2009 O3 (Hill)


MPEC 2009-S15 - "18:46 UT" - Comet C/2009 O2 (Catalina)


MPEC 2009-S14 - "18:02 UT" - Comet C/2009 F6 (Yi-SWAN)


MPEC 2009-S13 - "16:38 UT" - 2009 SL


MPEC 2009-S12 - "16:34 UT" - 2009 SK


MPEC 2009-S11 - "16:31 UT" - 2009 SJ


MPEC 2009-S10 - "16:28 UT" - 2009 SH


MPEC 2009-S09 - "12:30 UT" - 2009 SG


MPEC 2009-S08 - "12:24 UT" - 2009 SF


MPEC 2009-S07 - "12:20 UT" - 2009 SD


MPEC 2009-S06 - "12:16 UT" - 2009 SC


MPEC 2009-S05 - "12:13 UT" - 2009 SB


<< DOU on 17 Sept. '09 >>  MPEC 2009-S04 - "06:08 UT" - Daily Orbit Update


MPEC 2009-S03 - "05:28 UT" - 2009 SA

Observers  on 17 September '09

A total of 52 observing facilities appear in today's MPECs.

CodeObserver / observatory
834AAAA Buenos Aires Obs. in Argentina, 2 in MPECs 2009-S04 & 2009-S23 -- C/2006 W3, 68216
349Ageo Obs. in Japan, 8 in MPECs 2009-S14 & 2009-S23 -- C/2009 F6, C/2008 Q3, C/2008 N1, C/2006 Q1, 81P, 64P, 47P, 22P
J10Alicante Obs. in Spain, 5 in MPECs 2009-S17 & 2009-S23 -- C/2009 O4, C/2008 P1, C/2006 W3, 43P, 22P
J24Altamira Obs. in Spain, 16 in MPECs 2009-S17, 2009-S18, 2009-S19, 2009-S20, 2009-S21 & 2009-S23 -- P/2009 R2, P/2009 Q5, P/2009 Q4, P/2009 Q1, C/2009 P2, C/2009 P1, C/2009 O4, C/2008 P1, C/2007 VO53, C/2006 W3, C/2006 S3, 217P, 157P, 118P, 81P, 64P
J20Aravaca Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
I37Astrodomi Obs. in Argentina, 8 in MPEC 2009-S04 -- 52762, 24761, 217390, 212546, 177614, 15745, 143651, 4954
H55Astronomical Research Obs. (ARO) in Illinois, 7 in MPEC 2009-S04 -- 2009 RV1, 2009 RU1, 2009 RM, 2009 QG34, 2006 WW1, 2006 BC10, 2000 VH61
J51Atlante Obs. in the Canary Islands, 8 in MPECs 2009-S16, 2009-S17, 2009-S20, 2009-S21 & 2009-S23 -- P/2009 Q5, P/2009 Q4, C/2009 O4, P/2009 O3, C/2008 P1, C/2006 W3, 157P, 22P
432Boambee Obs. in New South Wales, 4 in MPEC 2009-S04 -- 2000 CO101, 24761, 212546, 143651
215Buchloe Obs. in Germany, 1 in MPEC 2009-S23 -- 221P
235CAST Obs. in Italy, 12 in MPECs 2009-S17 & 2009-S23 -- C/2009 O4, C/2008 P1, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 S3, C/2006 Q1, 157P, 127P, 47P, 43P, 22P
160Castelmartini Obs. in Italy, 2 in MPECs 2009-S15 & 2009-S23 -- C/2009 P2, C/2009 O2
703Catalina Sky Survey (CSS) in Arizona, 12 in MPECs 2009-S04, 2009-S09, 2009-S11, 2009-S17, 2009-S24, 2009-S25 & 2009-S27 -- 2009 SQ, 2009 SN, 2009 SM, 2009 SJ, 2009 SG, 2009 RT1, 2009 QY33, C/2009 O4, 2009 HV77, 2005 TE15, 2002 RQ25, 217683
A77Chante-Perdrix Obs. in France, 3 in MPECs 2009-S19 & 2009-S23 -- P/2009 Q1, C/2009 P2, 22P
H26Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPECs 2009-S04 & 2009-S09 -- 2009 SG, 2009 RH2, 2009 RG2, 152664
I21El Condor Obs. in Argentina, 5 in MPECs 2009-S17, 2009-S18, 2009-S21, 2009-S22 & 2009-S23 -- C/2009 R1, P/2009 Q5, C/2009 P1, C/2009 O4, C/2006 W3
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2009-S23 -- C/2009 P2
E85Farm Cove Obs. in New Zealand, 2 in MPECs 2009-S17 & 2009-S23 -- C/2009 P2, C/2009 O4
F656Richard Miles in England via Faulkes Telescope North in Hawaii, 8 in MPECs 2009-S03, 2009-S10, 2009-S11, 2009-S12, 2009-S13, 2009-S24, 2009-S26 & 2009-S27 -- 2009 SQ, 2009 SP, 2009 SM, 2009 SL, 2009 SK, 2009 SJ, 2009 SH, 2009 SA
J95Great Shefford Obs. in England, 7 in MPECs 2009-S03, 2009-S04, 2009-S06, 2009-S25, 2009-S26 & 2009-S27 -- 2009 SQ, 2009 SP, 2009 SN, 2009 SC, 2009 SA, 2009 RZ3, 2009 RM
750Hobbs Obs. in Wisconsin, 2 in MPEC 2009-S23 -- C/2006 W3, C/2006 S3
704LINEAR in New Mexico, 5 in MPECs 2009-S16, 2009-S20 & 2009-S23 -- P/2009 Q4, P/2009 O3, 203P, 127P, 118P
J87La Canada Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
212La Dehesilla Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
J59Linceo Obs. in Spain, 1 in MPEC 2009-S23 -- C/2006 W3
A70Lumijoki Obs. in Finland, 1 in MPEC 2009-S04 -- 2009 QH2
B82Maidbronn Obs. in Germany, 4 in MPEC 2009-S23 -- C/2008 P1, C/2006 W3, C/2006 S3, 43P
J40Malaga Obs. in Spain, 2 in MPEC 2009-S23 -- C/2009 P2, 43P
B90Malina River Obs. in Italy, 2 in MPECs 2009-S19 & 2009-S23 -- P/2009 R2, P/2009 Q1
118Modra Obs. in Slovakia, 2 in MPECs 2009-S04 & 2009-S16 -- P/2009 O3, 2009 KC3
213Montcabre Obs. in Spain, 1 in MPEC 2009-S23 -- 43P
900Moriyama Obs. in Japan, 6 in MPECs 2009-S09, 2009-S17 & 2009-S23 -- 2009 SG, C/2009 P2, C/2009 O4, C/2008 P1, 127P, 22P
G96Mt. Lemmon Survey (MLS) in Arizona, 17 in MPECs 2009-S03, 2009-S04, 2009-S05, 2009-S06, 2009-S07, 2009-S08, 2009-S10, 2009-S12, 2009-S13, 2009-S19, 2009-S20, 2009-S24, 2009-S25 & 2009-S26 -- 2009 SP, 2009 SN, 2009 SM, 2009 SL, 2009 SK, 2009 SH, 2009 SF, 2009 SD, 2009 SC, 2009 SB, 2009 SA, 2009 QE8, P/2009 Q4, P/2009 Q1, 2009 HB, 2007 EL, 2006 BC10
J93Mt. Tuffley Obs. in England, 1 in MPEC 2009-S23 -- 22P
A13Naef Obs. in Switzerland, 1 in MPEC 2009-S27 -- 2009 SQ
J47Nazaret Obs. in Spain, 8 in MPECs 2009-S15 & 2009-S23 -- C/2009 O2, C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 S3, 157P, 43P, 22P
423North Ryde Obs. in New South Wales, 3 in MPECs 2009-S18, 2009-S21 & 2009-S22 -- C/2009 R1, P/2009 Q5, C/2009 P1
561Piszkesteto Sta. in Hungary, 1 in MPEC 2009-S15 -- C/2009 O2
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2009-S23 -- 81P
473Remanzacco Obs. in Italy, 2 in MPECs 2009-S17 & 2009-S23 -- C/2009 O4, C/2006 W3
461SZTE Asteroid Program (SZTE) in Hungary, 2 in MPEC 2009-S23 -- C/2007 VO53, C/2006 S3
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2009-S04 & 2009-S09 -- 2009 SG, 2009 QB35
B74Santa Maria de Montmagastrell Obs. in Spain, 5 in MPECs 2009-S21 & 2009-S23 -- P/2009 Q5, C/2008 P1, C/2006 W3, 217P, 157P
204Schiaparelli Obs. in Italy, 4 in MPEC 2009-S23 -- C/2008 FK75, 203P, 81P, 47P
E12Siding Spring Survey (SSS) in New South Wales, 6 in MPEC 2009-S04 -- 2009 RY3, 2009 RT1, 2009 RM, 2009 RD1, 2005 SG19, 215167
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2009-S04 & 2009-S16 -- 2009 QS, P/2009 O3, 2008 VF, 2005 YX128, 162004
291Spacewatch 1.8m telescope in Arizona, 18 in MPECs 2009-S03, 2009-S04, 2009-S05, 2009-S06 & 2009-S07 -- 2009 SD, 2009 SC, 2009 SB, 2009 SA, 2009 RV1, 2009 RN, 2009 QZ34, 2009 QR8, 2009 QO5, 2009 QL32, 2009 QF34, 2009 QC23, 2006 XG2, 2006 VT2, 2005 UM5, 2004 SZ19, 2002 XG4, 2002 AP7
H10Tzec Maun Obs. Mayhill in New Mexico, 3 in MPEC 2009-S23 -- P/2009 R2, 217P, 118P
D25Tzec Maun Obs. Pingelly in Western Australia, 2 in MPECs 2009-S22 & 2009-S23 -- C/2009 R1, C/2008 Q3
C00Velikie Luki Obs. in Russia, 2 in MPEC 2009-S04 -- 2009 KC3, 17274
B42Vitebsk Obs. in Belarus, 9 in MPECs 2009-S19 & 2009-S23 -- P/2009 Q1, C/2008 P1, C/2006 Q1, 221P, 203P, 157P, 127P, 47P, 43P
367Yatsuka Obs. in Japan, 6 in MPECs 2009-S17, 2009-S22 & 2009-S23 -- C/2009 R1, C/2009 O4, C/2008 N1, C/2006 W3, C/2006 Q1, 157P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 September '09

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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. Beginning Jan. 22nd, both are also posting impact solutions beyond 100 years for a few 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
2009 SKJPL Sentry20022031-2108501.8e-06-6.01-6.510JPL: "Analysis based on 15 observations spanning .17233 days (2009-Sep-17.30113 to 2009-Sep-17.473459)." Diameter approximately 0.031 km. from mean, weighted H=25.2.
2009 SDJPL Sentry14092013-20721122.9e-05-4.41-5.270JPL: "Analysis based on 15 observations spanning .94438 days (2009-Sep-16.28421 to 2009-Sep-17.22859)." Diameter approximately 0.026 km. from mean, weighted H=25.6.
2009 SBJPL Sentry17232013-21092532.4e-07-4.04-4.800JPL: "Analysis based on 18 observations spanning 1.0765 days (2009-Sep-16.24433 to 2009-Sep-17.3208)." Diameter approximately 0.218 km. from mean, weighted H=21.0.
2009 RZ3JPL Sentry13312021-2107591.6e-07-3.04-3.680JPL: "Analysis based on 22 observations spanning 2.6884 days (2009-Sep-14.20535 to 2009-Sep-16.89378)." Diameter approximately 0.643 km. from mean, weighted H=18.6.
NEODyS13312021-2090481.07e-07-3.14-3.740NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2009/09/14.206 to 2009/09/16.895."

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 17 September '09

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

2358Grabbed MPEC 2009-S26 - 2009 SP - see above
Grabbed MPEC 2009-S27 - 2009 SQ - see above
2148Grabbed MPEC 2009-S24 - 2009 SM - see above
Grabbed MPEC 2009-S25 - 2009 SN - see above
2002Noted that JPL Sentry has posted 2009 SK as an impact risk - see above
Grabbed MPEC 2009-S17 - Comet C/2009 O4 (Hill) - see above
Grabbed MPEC 2009-S18 - Comet C/2009 P1 (Garradd) - see above
Grabbed MPEC 2009-S19 - Comet P/2009 Q1 (Hill) - see above
Grabbed MPEC 2009-S20 - Comet P/2009 Q4 (Boattini) - see above
Grabbed MPEC 2009-S21 - Comet P/2009 Q5 (McNaught) - see above
Grabbed MPEC 2009-S22 - Comet C/2009 R1 (McNaught) - see above
Grabbed MPEC 2009-S23 - Observations of Comets - see above
1855Grabbed MPEC 2009-S14 - Comet C/2009 F6 (Yi-SWAN) - see above
Grabbed MPEC 2009-S15 - Comet C/2009 O2 (Catalina) - see above
Grabbed MPEC 2009-S16 - Comet P/2009 O3 (Hill) - see above
1724Grabbed MPEC 2009-S10 - 2009 SH - see above
Grabbed MPEC 2009-S11 - 2009 SJ - see above
Grabbed MPEC 2009-S12 - 2009 SK - see above
Grabbed MPEC 2009-S13 - 2009 SL - see above
1723Noted that JPL Sentry has posted 2009 SB as an impact risk - see above
1409Noted that JPL Sentry has posted 2009 SD as an impact risk - see above
1331Noted that JPL Sentry has updated its 2009 RZ3 risk assessment - see above
Noted that NEODyS has updated its 2009 RZ3 risk assessment - see above
Grabbed MPEC 2009-S04 - Daily Orbit Update - see above
Grabbed MPEC 2009-S05 - 2009 SB - see above
Grabbed MPEC 2009-S06 - 2009 SC - see above
Grabbed MPEC 2009-S07 - 2009 SD - see above
Grabbed MPEC 2009-S08 - 2009 SF - see above
Grabbed MPEC 2009-S09 - 2009 SG - see above
0536Grabbed MPEC 2009-S03 - 2009 SA - see above