2009-09-19 Tracking News

Contents on 19 September '09

IAU Minor Planet Center
- NEOCP Activity -- six listings: 6 updated
- New MPECs -- eleven MPECs
Observers -- 24 observing facilities
Impact Risk Monitoring -- fourteen objects
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
News image catalog - new 13-14 Aug. 2009
Old & new CRT Archive
Old News Archive & Small Objects Archive

The latest A/CC news is available via framed access, 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 19 September '09

The MPC's NEO Confirmation Page has 6 listings: 6 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had six updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of 21 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 19 September '09

Minor Planet Electronic Circulars

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

MPEC 2009-S44 time-stamped "01:44 UT" - 2009 SW1 - see below
MPEC 2009-S45 time-stamped "01:48 UT" - 2009 SX1 - see below
MPEC 2009-S46 time-stamped "06:07 UT" - Daily Orbit Update - see below
MPEC 2009-S47 time-stamped "09:15 UT" - 2009 SC2 - see below
MPEC 2009-S48 time-stamped "09:19 UT" - 2009 SE2 - see below
MPEC 2009-S49 time-stamped "09:23 UT" - 2009 SF2 - see below
MPEC 2009-S50 time-stamped "09:30 UT" - 2009 SG2 - see below
MPEC 2009-S51 time-stamped "09:34 UT" - 2009 SH2 - see below
MPEC 2009-S52 time-stamped "10:02 UT" - 2009 SJ2 - see below
MPEC 2009-S53 time-stamped "12:31 UT" - 2009 SK2 - see below
MPEC 2009-S54 time-stamped "17:35 UT" - 2009 SL2

MPEC 2009-S54 - "17:35 UT" - 2009 SL2

K09S02L 2009 SL2 was discovered at 1244 UT on 18 Sept. by the Siding Spring Survey (SSS), which observed it at Sept. 18.53-57p4, 18.66p1, 18.75p1, 19.48-49p4, and 19.68-69p2.

MPEC 2009-S53 - "12:31 UT" - 2009 SK2

K09S02K 2009 SK2 (risk-listed) was discovered at 1111 UT on 18 Sept. by the Mt. Lemmon Survey (MLS), which observed it at Sept. 18.47-50p8 and 19.45-48p4.

MPEC 2009-S52 - "10:02 UT" - 2009 SJ2

K09S02J 2009 SJ2 was discovered at 0944 UT on 18 Sept. by MLS, which observed it at Sept. 18.29-31p4, 18.41p4, and 19.35-37p8.

MPEC 2009-S51 - "09:34 UT" - 2009 SH2

K09S02H 2009 SH2 (risk-listed) was discovered at 1822 UT on 18 Sept. by SSS, which observed it at Sept. 18.77-79p5. The discovery was confirmed by Rio Cuarto Obs. (Sept. 19.29-33p4).

MPEC 2009-S50 - "09:30 UT" - 2009 SG2

K09S02G 2009 SG2 (risk-listed) was discovered at 1719 UT on 18 Sept. by SSS, which observed it at Sept. 18.72-73p3 and 18.79p8. The discovery was confirmed by El Condor Obs. (Sept. 19.13-18p4 & 19.23p1) and Rio Cuarto Obs. (Sept. 19.24-25p3).

MPEC 2009-S49 - "09:23 UT" - 2009 SF2

K09S02F 2009 SF2 was discovered at 0817 UT on 18 Sept. by the Catalina Sky Survey (CSS), which observed it at Sept. 18.35-37p4, 18.43-44p4, and 19.28p3. The discovery was confirmed by Andrushivka Obs. (Sept. 18.82-83p4), Sandlot Obs. (Sept. 19.29-30p3), and Jim Young via Table Mtn. Obs. (Sept. 19.31-34p4).

MPEC 2009-S48 - "09:19 UT" - 2009 SE2

K09S02E 2009 SE2 was discovered at 0656 UT on 18 Sept. by MLS, which observed it at Sept. 18.29-31p4 at V=21.3-22.3, 18.41-43p8 at V=20.3-21.5, and 19.24-25p4 at V=21.2-4. The discovery was confirmed by the Spacewatch 1.8m telescope (Sept. 19.19-20p3).

MPEC 2009-S47 - "09:15 UT" - 2009 SC2

K09S02C 2009 SC2 was discovered at 0507 UT on 18 Sept. by MLS, which observed it at Sept. 18.21-28p8 at V=21.1-22.1, 18.38-39p3 at V=20.9-21.0, and 19.24-25p4 at V=21.8-22.0. The discovery was confirmed by Spacewatch 1.8m (Sept. 18.42-43p3 & 19.27-31p3).

<< DOU on 19 Sept. '09 >> MPEC 2009-S46 - "06:07 UT" - Daily Orbit Update

Observations of risk-listed objects
K09S01X 2009 SX1 (arc=1 day, H=18.7 ~616m) from Inastars Obs. (Sept. 19.07-08p4)
K09S01K 2009 SK1 (arc=1 day, H=18.1 ~812m) from Sierra Stars Obs. (Sept. 18.48-52p3)
K09S00V 2009 SV (arc=1 day, H=20.0 ~339m) from Astronomical Research Obs. (ARO) (Sept. 18.20-23p3 at V=21.4-22.2)
K09S00K 2009 SK (small asteroid, Q=4.208 AU, arc=1 day, H=25.1 ~32m) from ARO (Sept. 18.22p4) and Spacewatch 1.8m (Sept. 18.38-39p3)
K09S00D 2009 SD (small asteroid, arc=2 days, H=25.4 ~28m) from Spacewatch 1.8m (Sept. 18.40-41p3)
K09S00B 2009 SB (q=0.375 AU, Q=4.667 AU, arc=2 days, H=20.2 ~309m) from Spacewatch 1.8m (Sept. 18.41-42p3)
K09R03Z 2009 RZ3 (i=52.0°, arc=5 days, H=18.8 ~589m) from ARO (Sept. 18.07p2) and Spacewatch 1.8m (Sept. 18.16-17p3 & 19.16-17p3)
Observations of recently (no longer) risk-listed objects
K09Q34F 2009 QF34 (small asteroid, arc=22 days, H=22.6 ~102m) from Spacewatch 1.8m (Sept. 18.26-27p3)
Observations of small asteroids (H>22.0)
K09S01J 2009 SJ1 (arc=0 days, H=26.0 ~21m) from Faulkes Telescope South (Sept. 18.45-46p7)
K09S01C 2009 SC1 (arc=1 day, H=24.5 ~43m) from ARO (Sept. 18.27-29p3) and Richard Miles via Faulkes Telescope North (Sept. 18.50p3)
K09S00U 2009 SU (arc=1 day, H=22.9 ~89m) from ARO (Sept. 18.30-31p3)
K09R03Y 2009 RY3 (arc=5 days, H=24.6 ~41m) from SSS (Sept. 18.51-52p3)
K09R02G 2009 RG2 (arc=5 days, H=25.7 ~25m) from ARO (Sept. 18.28-29p3)
K09R01U 2009 RU1 (arc=6 days, H=24.3 ~47m) from ARO (Sept. 18.10-11p3)
K09R01T 2009 RT1 (arc=7 days, H=23.6 ~65m) from SSS (Sept. 18.48p1)
K09Q35A 2009 QA35 (Q=4.127 AU, arc=21 days, H=22.3 ~117m) from Spacewatch 1.8m (Sept. 18.28p2)
K09Q05O 2009 QO5 (arc=31 days, H=22.1 ~129m) from Spacewatch 1.8m (Sept. 18.31-32p3)
K09Q05M 2009 QM5 (arc=31 days, H=22.5 ~107m) from Spacewatch 1.8m (Sept. 18.29-30p3)
K03S84M 2003 SM84 (arc=2 opp, H=22.7 ~98m) from Spacewatch 1.8m (Sept. 18.46-47p3)
Observations of other objects
K09S00Q 2009 SQ (q=0.365 AU, Q=5.425 AU, arc=1 day, H=19.1 ~513m) from ARO (Sept. 18.10-11p3)
K09S00M 2009 SM (arc=2 days, H=19.0 ~537m) from ARO (Sept. 18.31-32p3)
K09S00G 2009 SG (i=39.9°, arc=3 days, H=19.7 ~389m) from ARO (Sept. 18.32-34p5) and Doc Greiner Research Obs. (DGRO) (Sept. 19.15-16p10)
K09S00C 2009 SC (arc=2 days, H=19.5 ~426m) from Spacewatch 1.8m (Sept. 18.44p3)
K09R04D 2009 RD4 (Q=4.325 AU, arc=5 days, H=20.5 ~269m) from SSS (Sept. 18.50p2)
K09R04B 2009 RB4 (arc=4 days, H=18.0 ~851m) from ARO (Sept. 18.29-30p3)
K09R04A 2009 RA4 (arc=4 days, H=21.5 ~170m) from DGRO (Sept. 18.16-17p4)
K09R01D 2009 RD1 (arc=6 days, H=20.6 ~257m) from ARO (Sept. 18.08-09p3)
K09R00M 2009 RM (Q=4.405 AU, arc=8 days, H=18.4 ~708m) from ARO (Sept. 18.06-07p3)
K09Q36B 2009 QB36 (Q=4.011 AU, arc=21 days, H=17.6 ~1.02 km) from DGRO (Sept. 19.09p3)
K09Q34G 2009 QG34 (Q=4.555 AU, arc=22 days, H=19.7 ~389m) from ARO (Sept. 18.32-33p3)
K09Q31F 2009 QF31 (i=42.4°, arc=23 days, H=18.3 ~741m) from ARO (Sept. 18.08-09p3)
K09Q08O 2009 QO8 (arc=31 days, H=19.1 ~513m) from Spacewatch 1.8m (Sept. 18.15-16p2)
K09M01L 2009 ML1 (arc=87 days, H=19.5 ~426m) from CSS (Sept. 18.27-30p4)
K09K03C 2009 KC3 (Q=5.454 AU, arc=136 days, H=18.2 ~776m) from Velikie Luki Obs. (Sept. 17.77-78p2)
K08J00O 2008 JO (arc=2 opp, H=18.3 ~741m) from the Spacewatch 0.9m telescope (Sept. 18.12-17p3)
K06Y13T 2006 YT13 (i=38.2°, arc=3 opp, H=18.3 ~741m) from Spacewatch 1.8m (Sept. 18.48-49p2 at V=22.5-9)
K05U01K 2005 UK1 (Q=4.237 AU, arc=3 opp, H=18.0 ~851m) from Spacewatch 1.8m (Sept. 18.32-36p3)
K04R09K 2004 RK9 (arc=2 opp, H=21.3 ~186m) from MLS (Sept. 18.29-31p4)
K02T66E 2002 TE66 (i=51.3°, arc=5 opp, H=18.3 ~741m) from CSS (Sept. 18.31-33p3)
K00W67C 2000 WC67 (Q=4.236 AU, arc=3 opp, H=18.6 ~645m) from Spacewatch 1.8m (Sept. 18.49-50p3)
K00S10O 2000 SO10 (i=37.0°, arc=5 opp, H=17.5 ~1.07 km) from CSS (Sept. 18.27-30p4)
K00CA1O 2000 CO101 (arc=2 opp, H=19.1 ~513m) from DGRO (Sept. 19.19p14)
J98M24R 1998 MR24 (arc=3 opp, H=19.3 ~467m) from CSS (Sept. 18.35-38p4)
L6985 216985 2000 QK130 from MLS (Sept. 18.34-36p4)
G2998 162998 2001 SK162 from Spacewatch 0.9m (Sept. 18.25-28p3)
F9402 159402 1999 AP10 from AAAA Buenos Aires Obs. (Sept. 12.14p1 & 12.22p1) and Chante-Perdrix Obs. (Sept. 17.87-92p3)
F3195 153195 2000 WB1 from Inastars Obs. (Sept. 19.13-14p3)
E3678 143678 2003 SA224 from Goodricke-Pigott Obs. (Sept. 17.32-35p2)
55408 55408 2001 TC2 from CSS (Sept. 18.35-37p4)
03288 3288 Seleucus (1982 DV) from Spacewatch 0.9m (Sept. 18.41-44p3)
00433 433 Eros (1898 DQ) from Stammersdorf Obs. (Sept. 18.83-85p6)

MPEC 2009-S45 - "01:48 UT" - 2009 SX1

K09S01X 2009 SX1 (risk-listed) was discovered at 0921 UT on 18 Sept. by CSS, which observed it at Sept. 18.39-41p3 and 18.45p4. The discovery was confirmed by Drebach Obs. (Sept. 18.94-97p4), Andrushivka Obs. (Sept. 18.94-95p5), and Farra d'Isonzo Obs. (Sept. 18.98p3).

MPEC 2009-S44 - "01:44 UT" - 2009 SW1

K09S01W 2009 SW1 (risk-listed) was discovered at 0725 UT on 18 Sept. by CSS, which observed it at Sept. 18.31-33p4 and 18.46-50p5. The discovery was confirmed by Great Shefford Obs. (Sept. 18.93-96p4).

Observers on 19 September '09

A total of 24 observing facilities appear in today's MPECs.

Code	Observer / observatory
`834`	AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2009-S46 -- 159402
`A50`	Andrushivka Obs. in the Ukraine, 2 in MPECs 2009-S45 & 2009-S49 -- 2009 SX1, 2009 SF2
`H55`	Astronomical Research Obs. (ARO) in Illinois, 15 in MPEC 2009-S46 -- 2009 SV, 2009 SU, 2009 SQ, 2009 SM, 2009 SK, 2009 SG, 2009 SC1, 2009 RZ3, 2009 RU1, 2009 RM, 2009 RG2, 2009 RD1, 2009 RB4, 2009 QG34, 2009 QF31
`703`	Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2009-S44, 2009-S45, 2009-S46 & 2009-S49 -- 2009 SX1, 2009 SW1, 2009 SF2, 2009 ML1, 2002 TE66, 2000 SO10, 1998 MR24, 55408
`A77`	Chante-Perdrix Obs. in France, 1 in MPEC 2009-S46 -- 159402
`H26`	Doc Greiner Research Obs. (DGRO) in Wisconsin, 4 in MPEC 2009-S46 -- 2009 SG, 2009 RA4, 2009 QB36, 2000 CO101
`113`	Drebach Obs. in Germany, 1 in MPEC 2009-S45 -- 2009 SX1
`I21`	El Condor Obs. in Argentina, 1 in MPEC 2009-S50 -- 2009 SG2
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2009-S45 -- 2009 SX1
`F656`	Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2009-S46 -- 2009 SC1
`E10`	Faulkes Telescope South in New South Wales, 1 in MPEC 2009-S46 -- 2009 SJ1
`683`	Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2009-S46 -- 143678
`J95`	Great Shefford Obs. in England, 1 in MPEC 2009-S44 -- 2009 SW1
`B15`	Inastars Obs. in Germany, 2 in MPEC 2009-S46 -- 2009 SX1, 153195
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2009-S46, 2009-S47, 2009-S48, 2009-S52 & 2009-S53 -- 2009 SK2, 2009 SJ2, 2009 SE2, 2009 SC2, 2004 RK9, 216985
`I20`	Rio Cuarto Obs. in Argentina, 2 in MPECs 2009-S50 & 2009-S51 -- 2009 SH2, 2009 SG2
`H36`	Sandlot Obs. in Kansas, 1 in MPEC 2009-S49 -- 2009 SF2
`E12`	Siding Spring Survey (SSS) in New South Wales, 6 in MPECs 2009-S46, 2009-S50, 2009-S51 & 2009-S54 -- 2009 SL2, 2009 SH2, 2009 SG2, 2009 RY3, 2009 RT1, 2009 RD4
`G68`	Sierra Stars Obs. in northern California, 1 in MPEC 2009-S46 -- 2009 SK1
`691`	Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2009-S46 -- 2008 JO, 162998, 3288
`291`	Spacewatch 1.8m telescope in Arizona, 16 in MPECs 2009-S46, 2009-S47 & 2009-S48 -- 2009 SK, 2009 SE2, 2009 SD, 2009 SC2, 2009 SC, 2009 SB, 2009 RZ3, 2009 QO8, 2009 QO5, 2009 QM5, 2009 QF34, 2009 QA35, 2006 YT13, 2005 UK1, 2003 SM84, 2000 WC67
`A97`	Stammersdorf Obs. in Austria, 1 in MPEC 2009-S46 -- 433
`6735`	Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2009-S49 -- 2009 SF2
`C00`	Velikie Luki Obs. in Russia, 1 in MPEC 2009-S46 -- 2009 KC3

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 19 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 SK2	JPL Sentry	1620	2021	1	1.1e-10	-5.75	-5.75	0	JPL: "Analysis based on 12 observations spanning 1.0149 days (2009-Sep-18.46606 to 2009-Sep-19.48097)." Diameter approximately 0.710 km. from mean, weighted H=18.4.

2009 SH2	JPL Sentry	1620	2014-2109	441	2.6e-05	-4.58	-5.57	0	JPL: "Analysis based on 9 observations spanning .56493 days (2009-Sep-18.76541 to 2009-Sep-19.33034)." Diameter approximately 0.046 km. from mean, weighted H=24.4.

2009 SG2	JPL Sentry	1620	2022-2101	13	1.3e-08	-5.11	-5.23	0	JPL: "Analysis based on 19 observations spanning .53098 days (2009-Sep-18.72181 to 2009-Sep-19.25279)." Diameter approximately 0.340 km. from mean, weighted H=20.0.

2009 SX1	JPL Sentry	1620	2027-2109	77	7.4e-08	-4.10	-5.22	0	JPL #2 for the day: "Analysis based on 23 observations spanning .68950 days (2009-Sep-18.38999 to 2009-Sep-19.07949)." Diameter approximately 0.600 km. from mean, weighted H=18.7.
2009 SX1	NEODyS	1620	2012-2064	4	1.09e-09	-5.25	-5.36	0	NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2009/09/18.391 to 2009/09/19.080."

2009 SW1	NEODyS	1621	2064	2	1.83e-08	-7.09	-7.29	0	NEODyS: "Based on 13 optical observations (of which 0 are rejected as outliers) from 2009/09/18.310 to 2009/09/18.956."
2009 SW1	JPL Sentry	0359	2064	1	8.3e-09	-7.53	-7.53	0	JPL: "Analysis based on 13 observations spanning .64588 days (2009-Sep-18.30955 to 2009-Sep-18.95543)." Diameter approximately 0.065 km. from mean, weighted H=23.6.

2009 SN1	NEODyS	1620	2045-2068	2	1.03e-09	-9.11	-9.22	0	NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2009/09/18.340 to 2009/09/18.503."

2009 SM1	NEODyS	1620	2032-2075	6	3.75e-08	-7.33	-7.60	0	NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2009/09/18.237 to 2009/09/18.497."

2009 SK1	JPL Sentry	1620	R E M O V E D						JPL: Risk listing removed at 0933 UTC.

2009 SH1	NEODyS	1620	2068-2088	2	5.83e-09	-11.12	-11.24	0	NEODyS: "Based on 12 optical observations (of which 1 are rejected as outliers) from 2009/09/18.212 to 2009/09/18.391."

2009 SV	JPL Sentry	1620	2078-2106	4	7.5e-10	-6.71	-7.12	0	JPL: "Analysis based on 17 observations spanning 1.0331 days (2009-Sep-17.19449 to 2009-Sep-18.22759)." Diameter approximately 0.372 km. from mean, weighted H=19.8.

2009 SK	JPL Sentry	1620	R E M O V E D						JPL: Risk listing removed at 0932 UTC.
2009 SK	NEODyS	1620	R E M O V E D						-

2009 SD	JPL Sentry	1620	R E M O V E D						JPL: Risk listing removed at 0853 UTC.
2009 SD	NEODyS	1620	R E M O V E D						-

2009 SB	JPL Sentry	1620	2012-2107	82	1.9e-07	-4.08	-4.89	0	JPL: "Analysis based on 21 observations spanning 2.1760 days (2009-Sep-16.24433 to 2009-Sep-18.42036)." Diameter approximately 0.233 km. from mean, weighted H=20.8.
2009 SB	NEODyS	1620	2012-2090	81	1.3e-07	-4.16	-4.85	0	NEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2009/09/16.245 to 2009/09/18.421."

2009 RZ3	JPL Sentry	1620	2025-2104	22	1.0e-07	-3.50	-4.29	0	JPL: "Analysis based on 33 observations spanning 4.9625 days (2009-Sep-14.20535 to 2009-Sep-19.1679)." Diameter approximately 0.615 km. from mean, weighted H=18.7.
2009 RZ3	NEODyS	1620	2025-2090	22	5.45e-08	-3.66	-4.26	0	NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2009/09/14.206 to 2009/09/19.169."

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 19 September '09

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

1802	Grabbed MPEC 2009-S54 - 2009 SL2 - see above
1620	Noted that JPL Sentry has updated its 2009 RZ3 risk assessment - see above Noted that NEODyS has updated its 2009 RZ3 risk assessment - see above Noted that JPL Sentry has updated its 2009 SB risk assessment - see above Noted that NEODyS has updated its 2009 SB risk assessment - see above Noted that JPL Sentry has removed 2009 SD as an impact risk - see above Noted that NEODyS has removed 2009 SD as an impact risk - see above Noted that JPL Sentry has posted 2009 SG2 as an impact risk - see above Noted that NEODyS has posted 2009 SH1 as an impact risk - see above Noted that JPL Sentry has posted 2009 SH2 as an impact risk - see above Noted that JPL Sentry has removed 2009 SK as an impact risk - see above Noted that NEODyS has removed 2009 SK as an impact risk - see above Noted that JPL Sentry has removed 2009 SK1 as an impact risk - see above Noted that JPL Sentry has posted 2009 SK2 as an impact risk - see above Noted that NEODyS has posted 2009 SM1 as an impact risk - see above Noted that NEODyS has posted 2009 SN1 as an impact risk - see above Noted that JPL Sentry has updated its 2009 SV risk assessment - see above Noted that NEODyS has posted 2009 SW1 as an impact risk - see above Noted that JPL Sentry has updated its 2009 SX1 risk assessment - see above Noted that NEODyS has posted 2009 SX1 as an impact risk - see above Grabbed MPEC 2009-S46 - Daily Orbit Update - see above Grabbed MPEC 2009-S47 - 2009 SC2 - see above Grabbed MPEC 2009-S48 - 2009 SE2 - see above Grabbed MPEC 2009-S49 - 2009 SF2 - see above Grabbed MPEC 2009-S50 - 2009 SG2 - see above Grabbed MPEC 2009-S51 - 2009 SH2 - see above Grabbed MPEC 2009-S52 - 2009 SJ2 - see above Grabbed MPEC 2009-S53 - 2009 SK2 - see above
0429	Noted that JPL Sentry has posted 2009 SX1 as an impact risk - see above
0359	Noted that JPL Sentry has posted 2009 SW1 as an impact risk - see above
0215	Grabbed MPEC 2009-S45 - 2009 SX1 - see above
0146	Grabbed MPEC 2009-S44 - 2009 SW1 - see above

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