Contents  on 24 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 24 September '09

The MPC's NEO Confirmation Page has 6 listings: 1 new, 5 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one new and five updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of eleven 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 24 September '09

Minor Planet Electronic Circulars

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


MPEC 2009-S90 - "22:04 UT" - Comet P/2009 S2 (McNaught)


MPEC 2009-S89 - "19:02 UT" - 2009 SO98


MPEC 2009-S88 - "18:57 UT" - 2009 SN98


MPEC 2009-S87 - "18:54 UT" - 2009 SM98


MPEC 2009-S86 - "15:48 UT" - Observations of Comets


MPEC 2009-S85 - "15:35 UT" - Comet C/2009 R1 (McNaught)


MPEC 2009-S84 - "15:30 UT" - Comet P/2009 Q5 (McNaught)


MPEC 2009-S83 - "15:25 UT" - Comet P/2009 Q4 (Boattini)


MPEC 2009-S82 - "15:21 UT" - Comet P/2009 Q1 (Hill)


MPEC 2009-S81 - "15:16 UT" - Comet C/2009 P1 (Garradd)


MPEC 2009-S80 - "15:11 UT" - Comet C/2009 O4 (Hill)


MPEC 2009-S79 - "15:06 UT" - Comet P/2009 O3 (Hill)


MPEC 2009-S78 - "15:02 UT" - Comet C/2009 O2 (Catalina)


<< DOU on 24 Sept. '09 >>  MPEC 2009-S77 - "06:08 UT" - Daily Orbit Update


MPEC 2009-S76 - "02:00 UT" - S/2003 J 17

Observers  on 24 September '09

A total of 75 observing facilities appear in today's MPECs.

CodeObserver / observatory
B17AZT-8 Evpatoria in the Ukraine, 2 in MPEC 2009-S77 -- 159402, 152664
349Ageo Obs. in Japan, 6 in MPECs 2009-S80 & 2009-S86 -- C/2009 O4, C/2006 Q1, C/2005 L3, 88P, 43P, 29P
J10Alicante Obs. in Spain, 3 in MPEC 2009-S86 -- C/2006 S3, 217P, 22P
J24Altamira Obs. in Spain, 1 in MPEC 2009-S86 -- 30P
B03Alter Satzberg Obs. in Austria, 1 in MPEC 2009-S77 -- 2009 FG19
J20Aravaca Obs. in Spain, 2 in MPEC 2009-S86 -- C/2006 W3, C/2005 L3
I32Beta Orionis Obs. in Argentina, 3 in MPEC 2009-S86 -- C/2009 K5, C/2007 B2, 22P
B75Betelgeuse Station in Italy, 6 in MPECs 2009-S77 & 2009-S86 -- 2009 SG, 2009 QB36, 2009 NA, 2009 MC9, 2009 KC3, 157P
B59Borken Obs. in Germany, 1 in MPEC 2009-S86 -- 118P
B96Brixiis Obs. in Belgium, 1 in MPEC 2009-S86 -- C/2006 W3
215Buchloe Obs. in Germany, 6 in MPEC 2009-S86 -- C/2008 N1, P/2008 J3, C/2006 W3, C/2006 S3, 54P, 22P
235CAST Obs. in Italy, 14 in MPECs 2009-S80 & 2009-S86 -- C/2009 O4, C/2008 P1, P/2008 O2, C/2008 N1, C/2008 FK75, C/2008 A1, C/2007 VO53, C/2006 W3, C/2006 S3, C/2006 Q1, 157P, 127P, 47P, 22P
160Castelmartini Obs. in Italy, 15 in MPECs 2009-S77 & 2009-S86 -- 2009 SH15, 2009 QB36, C/2009 P2, 2009 NA, 2009 MC9, 2009 KC3, C/2006 W3, 2002 NP1, 2002 FB6, 2000 CO101, 1998 SV4, 17274, 16834, 136617, 12711
703Catalina Sky Survey (CSS) in Arizona, 10 in MPECs 2009-S77, 2009-S80, 2009-S86, 2009-S87 & 2009-S89 -- 2009 SO98, 2009 SM98, P/2009 R2, C/2009 O4, C/2009 K2, C/2007 U1, 2004 RD84, 157P, 81P, 47P
A77Chante-Perdrix Obs. in France, 6 in MPEC 2009-S86 -- C/2008 P1, C/2008 N1, 88P, 54P, 22P, 2P
I21El Condor Obs. in Argentina, 10 in MPECs 2009-S77, 2009-S80, 2009-S84, 2009-S85, 2009-S86 & 2009-S90 -- 2009 SW17, 2009 SH2, 2009 SG2, P/2009 S2, C/2009 R1, P/2009 Q5, C/2009 O4, C/2009 K5, C/2009 F4, C/2007 B2
151Eschenberg Obs. in Switzerland, 2 in MPEC 2009-S77 -- 2009 QB36, 2009 NA
F65Faulkes Telescope North in Hawaii, 1 in MPEC 2009-S86 -- 9P
E10Faulkes Telescope South in New South Wales, 2 in MPECs 2009-S87 & 2009-S88 -- 2009 SN98, 2009 SM98
762Four Winds Obs. in Michigan, 3 in MPEC 2009-S86 -- C/2006 W3, C/2006 S3, C/2006 Q1
372Geisei Obs. in Japan, 4 in MPECs 2009-S84, 2009-S85 & 2009-S86 -- C/2009 R1, P/2009 Q5, 64P, 29P
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2009-S77 -- 3361
442Gualba Obs. in Spain, 1 in MPEC 2009-S86 -- 29P
A17Guidestar Obs. in Germany, 3 in MPEC 2009-S77 -- 2009 SX17, 2009 SX1, 159402
A18Herne Obs. in Germany, 5 in MPEC 2009-S86 -- C/2008 P1, C/2008 N1, C/2006 W3, C/2006 Q1, 22P
240Herrenberg Obs. in Germany, 2 in MPEC 2009-S77 -- 1943, 1865
B15Inastars Obs. in Germany, 1 in MPEC 2009-S86 -- 22P
585Kiev Comet Station in the Ukraine, 8 in MPECs 2009-S78, 2009-S79, 2009-S80, 2009-S82, 2009-S83, 2009-S84, 2009-S85 & 2009-S86 -- C/2009 R1, P/2009 Q5, P/2009 Q4, P/2009 Q1, C/2009 O4, P/2009 O3, C/2009 O2, 43P
352Konan Obs. in Japan, 5 in MPECs 2009-S80, 2009-S84 & 2009-S86 -- P/2009 Q5, C/2009 O4, 127P, 118P, 22P
D95Kurihara Obs., 2 in MPEC 2009-S86 -- C/2006 W3, 22P
704LINEAR in New Mexico, 5 in MPECs 2009-S79 & 2009-S86 -- P/2009 O3, C/2008 S3, C/2007 N3, 118P, 30P
212La Dehesilla Obs. in Spain, 8 in MPECs 2009-S80 & 2009-S86 -- C/2009 O4, C/2008 P1, C/2006 W3, C/2006 S3, 217P, 157P, 43P, 22P
J75La Sagra Obs. in Spain, 1 in MPEC 2009-S86 -- C/2008 S3
J38La Vara Obs. in Spain, 2 in MPEC 2009-S86 -- C/2006 W3, 22P
844Los Molinos Obs. in Uruguay, 2 in MPEC 2009-S86 -- 217P, 22P
130Lumezzane Obs. in Italy, 4 in MPECs 2009-S79 & 2009-S86 -- P/2009 O3, C/2008 A1, 157P, 127P
560Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2009-S77 -- 2009 MC9, 2005 EF, 2004 RD84, 1998 SV4
H01Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2009-S88, 2009-S89 & 2009-S90 -- 2009 SO98, 2009 SN98, P/2009 S2
B82Maidbronn Obs. in Germany, 8 in MPEC 2009-S86 -- C/2009 P2, C/2008 P1, C/2008 N1, C/2007 U1, C/2006 W3, C/2006 Q1, C/2005 L3, 43P
J40Malaga Obs. in Spain, 6 in MPEC 2009-S86 -- C/2009 P2, C/2008 P1, 217P, 127P, 118P, 22P
A01Masia Cal Maciarol Modul 1 in Spain, 1 in MPEC 2009-S86 -- C/2006 W3
118Modra Obs. in Slovakia, 3 in MPEC 2009-S86 -- C/2008 S3, P/2008 J3, C/2007 VO53
213Montcabre Obs. in Spain, 6 in MPECs 2009-S82, 2009-S84 & 2009-S86 -- P/2009 Q5, P/2009 Q1, C/2008 P1, C/2006 W3, 157P, 2P
945Monte Deva Obs. in Spain, 5 in MPECs 2009-S80 & 2009-S86 -- C/2009 O4, C/2008 P1, C/2006 W3, 217P, 22P
900Moriyama Obs. in Japan, 31 in MPECs 2009-S79, 2009-S80, 2009-S82, 2009-S83, 2009-S84, 2009-S85 & 2009-S86 -- C/2009 R1, P/2009 Q5, P/2009 Q4, P/2009 Q1, C/2009 P2, C/2009 O4, P/2009 O3, C/2009 K2, C/2008 S3, C/2008 P1, C/2008 N1, C/2007 VO53, C/2007 U1, C/2007 Q3, C/2007 N3, C/2007 G1, C/2006 W3, C/2006 S3, C/2006 Q1, C/2005 L3, 222P, 217P, 157P, 127P, 118P, 88P, 81P, 54P, 43P, 30P, 22P
474Mt. John Obs. in New Zealand, 3 in MPECs 2009-S80, 2009-S81 & 2009-S84 -- P/2009 Q5, C/2009 P1, C/2009 O4
G96Mt. Lemmon Survey (MLS) in Arizona, 7 in MPECs 2009-S77, 2009-S82, 2009-S86 & 2009-S88 -- 2009 SU, 2009 SN98, P/2009 Q1, C/2008 S3, 2003 SK5, 169P, 2P
A13Naef Obs. in Switzerland, 2 in MPECs 2009-S77 & 2009-S86 -- P/2008 O2, 17511
J47Nazaret Obs. in Spain, 3 in MPEC 2009-S86 -- C/2006 W3, 219P, 22P
423North Ryde Obs. in New South Wales, 2 in MPECs 2009-S81 & 2009-S84 -- P/2009 Q5, C/2009 P1
A32Panker Obs. in Germany, 7 in MPEC 2009-S86 -- C/2008 N1, C/2008 FK75, C/2006 W3, C/2006 S3, C/2006 Q1, 43P, 22P
B49Paus Obs. in Spain, 4 in MPECs 2009-S79 & 2009-S86 -- P/2009 O3, C/2008 P1, 157P, 127P
B58Polaris Obs. in Hungary, 1 in MPEC 2009-S86 -- C/2006 W3
H06RAS Obs. Mayhill in New Mexico, 12 in MPECs 2009-S82, 2009-S83, 2009-S86 & 2009-S90 -- P/2009 S2, P/2009 R2, P/2009 Q4, P/2009 Q1, C/2008 FK75, C/2007 N3, 222P, 217P, 157P, 81P, 64P, 29P
D90RAS Obs. Moorook in South Australia, 9 in MPECs 2009-S78, 2009-S80, 2009-S81, 2009-S84, 2009-S85 & 2009-S86 -- C/2009 R1, P/2009 Q5, C/2009 P1, C/2009 O4, C/2009 O2, C/2009 K5, C/2007 G1, C/2007 B2, 126P
D90`K. Hills in England via RAS Obs. Moorook in South Australia, 3 in MPEC 2009-S77 -- 2009 SW19, 2009 SH2, 152664
461SZTE Asteroid Program in Hungary, 2 in MPEC 2009-S86 -- C/2008 S3, 167P
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2009-S87 & 2009-S90 -- 2009 SM98, P/2009 S2
434San Benedetto Po Obs. in Italy, 1 in MPEC 2009-S77 -- 17274
B70Sant Celoni Obs. in Spain, 1 in MPEC 2009-S86 -- C/2008 P1
B74Santa Maria de Montmagastrell Obs. in Spain, 7 in MPEC 2009-S86 -- C/2006 W3, C/2006 S3, 217P, 157P, 127P, 43P, 22P
204Schiaparelli Obs. in Italy, 19 in MPECs 2009-S77, 2009-S80, 2009-S82, 2009-S85 & 2009-S86 -- 2009 SH15, 2009 RN, P/2009 R2, C/2009 R1, 2009 QZ34, 2009 QG34, P/2009 Q1, C/2009 P2, C/2009 O4, C/2008 N1, 2002 FB6, 1998 SV4, 1993 RA, 1991 LH, 217P, 157P, 54P, 43P, 2P
B76Schonfeld Obs. in Germany, 1 in MPEC 2009-S86 -- C/2006 W3
D21Shenton Park Obs. in Western Australia, 2 in MPECs 2009-S87 & 2009-S90 -- 2009 SM98, P/2009 S2
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPECs 2009-S81, 2009-S86, 2009-S87 & 2009-S90 -- 2009 SM98, P/2009 S2, C/2009 P1, C/2007 B2
510Siegen Obs. in Germany, 5 in MPEC 2009-S86 -- C/2006 W3, C/2006 S3, C/2006 Q1, 157P, 22P
587Sormano Obs. in Italy, 4 in MPEC 2009-S77 -- 2009 SV19, 2009 SK15, 2009 SH15, 2009 SG18
691Spacewatch 0.9m telescope in Arizona, 12 in MPECs 2009-S77, 2009-S86 & 2009-S88 -- 2009 SV, 2009 SN98, 2009 SK, 30825, 17511, 171486, 138815, 138727, 8176, 3361, 127P, 2P
291Spacewatch 1.8m telescope in Arizona, 14 in MPECs 2009-S77 & 2009-S86 -- 2009 SW17, 2009 SW1, 2009 SV17, 2009 ST, 2009 SC2, 2009 SC15, 2009 SC1, 2009 SB15, 2009 SB, 2009 RZ3, 2009 PH, 219P, 54P, 43P
A97Stammersdorf Obs. in Austria, 1 in MPEC 2009-S86 -- C/2006 W3
B26Terres Blanches Obs. in France, 2 in MPEC 2009-S86 -- C/2006 W3, 22P
H10Tzec Maun Obs. Mayhill in New Mexico, 15 in MPECs 2009-S77, 2009-S79, 2009-S82, 2009-S83, 2009-S85 & 2009-S86 -- P/2009 R2, C/2009 R1, P/2009 Q4, P/2009 Q1, C/2009 P2, P/2009 O3, P/2008 O2, C/2007 N3, 2003 UL12, 222P, 118P, 81P, 64P, 47P, 43P
D25Tzec Maun Obs. Pingelly in Western Australia, 8 in MPECs 2009-S80, 2009-S81, 2009-S84, 2009-S85 & 2009-S86 -- C/2009 R1, P/2009 Q5, C/2009 P1, C/2009 O4, P/2009 K1, 169P, 127P, 88P
B42Vitebsk Obs. in Belarus, 4 in MPEC 2009-S86 -- C/2009 P2, C/2009 K2, P/2008 O2, 167P
G56Walnut Creek Obs. in northern California, 1 in MPEC 2009-S77 -- 2009 SQ
367Yatsuka Obs. in Japan, 2 in MPEC 2009-S86 -- C/2006 W3, 88P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 24 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 SO98JPL Sentry22152018-207751.4e-09-8.02-8.130JPL: "Analysis based on 13 observations spanning .06909 days (2009-Sep-24.44211 to 2009-Sep-24.5112)." Diameter approximately 0.042 km. from mean, weighted H=24.5.
2009 SM98JPL Sentry21222055-2108111.1e-06-4.47-4.620JPL: "Analysis based on 21 observations spanning .38678 days (2009-Sep-24.24446 to 2009-Sep-24.63124)." Diameter approximately 0.120 km. from mean, weighted H=22.3.
2009 SW19JPL Sentry14402017-2095361.5e-08-4.35-4.830JPL: "Analysis based on 18 observations spanning .42257 days (2009-Sep-23.18426 to 2009-Sep-23.60683)." Diameter approximately 0.400 km. from mean, weighted H=19.6.
NEODyS14402012-2089751.57e-08-4.14-4.650NEODyS: "Based on 19 optical observations (of which 2 are rejected as outliers) from 2009/09/23.185 to 2009/09/23.608."
2009 SG18JPL Sentry14402015-20951151.8e-07-2.31-3.250JPL: "Analysis based on 19 observations spanning 1.7130 days (2009-Sep-21.17145 to 2009-Sep-22.88443)." Diameter approximately 0.960 km. from mean, weighted H=17.7.
NEODyS14402015-2071418.85e-08-2.59-3.470NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2009/09/21.172 to 2009/09/22.885."
2009 SV17NEODyS1440R E M O V E D-
JPL Sentry1440R E M O V E DJPL: Risk listing removed at 0930 UTC.
2009 SC15JPL Sentry1440R E M O V E DJPL: Risk listing removed at 0931 UTC.
2009 SH2JPL Sentry14402095-210192.8e-05-4.74-5.030JPL: "Analysis based on 24 observations spanning 4.9629 days (2009-Sep-18.76541 to 2009-Sep-23.72829)." Diameter approximately 0.043 km. from mean, weighted H=24.5.
2009 SBNEODyS1440R E M O V E D-
JPL Sentry1440R E M O V E DJPL: Risk listing removed at 0854 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 24 September '09

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

2300Grabbed MPEC 2009-S90 - Comet P/2009 S2 (McNaught) - see above
2215Noted that JPL Sentry has posted 2009 SO98 as an impact risk - see above
2122Noted that JPL Sentry has posted 2009 SM98 as an impact risk - see above
2004Grabbed MPEC 2009-S89 - 2009 SO98 - see above
1900Grabbed MPEC 2009-S87 - 2009 SM98 - see above
Grabbed MPEC 2009-S88 - 2009 SN98 - see above
1701Grabbed MPEC 2009-S78 - Comet C/2009 O2 (Catalina) - see above
Grabbed MPEC 2009-S79 - Comet P/2009 O3 (Hill) - see above
Grabbed MPEC 2009-S80 - Comet C/2009 O4 (Hill) - see above
Grabbed MPEC 2009-S81 - Comet C/2009 P1 (Garradd) - see above
Grabbed MPEC 2009-S82 - Comet P/2009 Q1 (Hill) - see above
Grabbed MPEC 2009-S83 - Comet P/2009 Q4 (Boattini) - see above
Grabbed MPEC 2009-S84 - Comet P/2009 Q5 (McNaught) - see above
Grabbed MPEC 2009-S85 - Comet C/2009 R1 (McNaught) - see above
Grabbed MPEC 2009-S86 - Observations of Comets - see above
1440Noted that JPL Sentry has removed 2009 SB as an impact risk - see above
Noted that NEODyS has removed 2009 SB as an impact risk - see above
Noted that JPL Sentry has removed 2009 SC15 as an impact risk - see above
Noted that JPL Sentry has updated its 2009 SG18 risk assessment - see above
Noted that NEODyS has updated its 2009 SG18 risk assessment - see above
Noted that JPL Sentry has updated its 2009 SH2 risk assessment - see above
Noted that JPL Sentry has removed 2009 SV17 as an impact risk - see above
Noted that NEODyS has removed 2009 SV17 as an impact risk - see above
Noted that JPL Sentry has updated its 2009 SW19 risk assessment - see above
Noted that NEODyS has posted 2009 SW19 as an impact risk - see above
Grabbed MPEC 2009-S77 - Daily Orbit Update - see above
0425Grabbed MPEC 2009-S76 - S/2003 J 17 - see above