The discovery image of the first centaur, 95P/Chiron, was made thirty years ago today by Charles Kowal with the Mt. Palomar Schmidt telescope. Designated 1977 UB and later numbered 2060, it was found in April 1989 to be cometary by Karen Meech and Michael Belton. The above picture of Chiron's inner coma was made by Meech with the Hubble Space Telescope on 23 April 1996. See Cometography for more info. Credit: Karen J. Meech/HST (image pixel-doubled by A/CC).
Contents on 18 October '07
- IAU Minor Planet Center
- NEOCP Activity -- eleven listings: 2 new, 9 updated
- New MPECs -- six MPECs
- Observers -- seventeen observing facilities
- Impact Risk Monitoring -- six objects reported
- Chronology
Resources:
- Consolidated Risk Tables - CRT page
- Old & new CRT Archive
- Ephemerides for risk-rated objects
- Old News Archive & Small Objects Archive
Note: Marching toward complete automation, we have inaugurated today (October 18th) an 
RSS news feed that is generated from the same scripts used to produce these daily news pages, replacing previously manual RSS creation. This provides faster and more complex (and surer) linking to both the related A/CC news items and, when available, now also to the original documents. And so this means not only an RSS news feed for A/CC reporting but also for MPECs and active risk assessments. Additionally, this change allows providing an alternate RSS feed for daily news as published on A/CC's backup Web site.
The latest news: framed access (best), RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site, which now has its own backup 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 this year 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 18 October '07
The MPC's NEO Confirmation Page has 11 listings: 2 new, 9 updated
When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two new and nine updated listings. Of these, nine were "one nighters." So far The Tracking News has counted a total of thirteen objects listed on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.
New MPECs on 18 October '07
Minor Planet Electronic Circulars
As of last check at 2354 UTC, there have been six MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2007-U19 time-stamped "06:10 UT" - Daily Orbit Update - see below
- MPEC 2007-U20 time-stamped "09:53 UT" - 2007 UR - see below
- MPEC 2007-U21 time-stamped "10:43 UT" - 2007 US - see below
- MPEC 2007-U22 time-stamped "12:02 UT" - 2007 UT - see below
- MPEC 2007-U23 time-stamped "19:15 UT" - Comets C/2004 E5, 2007 K21, 2007 N4, 2007 N5, 2007 N6 (SOHO) - see below
- MPEC 2007-U24 time-stamped "19:21 UT" - Comets C/2007 N7, 2007 N8, 2007 O3, 2007 O4 (SOHO)
MPEC 2007-U24 - "19:21 UT" - Comets C/2007 N7, 2007 N8, 2007 O3, 2007 O4 (SOHO)
- CK07O040 C/2007 O4 from the LASCO Coronagraph 3 on the Solar & Heliospheric Obs. (SOHO) (July 27.22-28p8 & 27.32-78p42)
- CK07O030 C/2007 O3 from SOHO C3 (July 18.53p2, 18.57-65p10 & 18.70-76p8)
- CK07N080 C/2007 N8 from SOHO C3 (July 13.35-45p12, 13.49-53p6, 13.57-78p22 & 13.82-85p4)
- CK07N070 C/2007 N7 from SOHO C3 (July 13.18-45p26, 13.49-53p6, 13.57-78p22, 13.82-93p12, 13.97-03p8, 14.07-11p6, 14.18p2 & 14.22-32p10) and the LASCO Coronagraph 2 on the Solar & Heliospheric Obs. (SOHO) (July 14.31-38p8)
MPEC 2007-U23 - "19:15 UT" - Comets C/2004 E5, 2007 K21, 2007 N4, 2007 N5, 2007 N6 (SOHO)
- CK07N060 C/2007 N6 from SOHO C3 (July 11.64-78p16 & 11.82-93p12) and SOHO C2 (July 12.06-09p6)
- CK07N050 C/2007 N5 from SOHO C3 (July 7.90-93p4, 7.97-01p6, 8.07-18p12, 8.22-28p8 & 8.32-68p34) and SOHO C2 (July 8.67-75p12)
- CK07N040 C/2007 N4 from SOHO C3 (July 3.61-78p18, 3.82-93p12 & 3.97-39p38 at V=0029) and SOHO C2 (July 4.40-54p22)
- CK07K210 C/2007 K21 from SOHO C2 (May 23.36-54p46)
- CK04E050 C/2004 E5 from SOHO C3 (2004 March 1.32-53p20)
MPEC 2007-U22 - "12:02 UT" - 2007 UT
- K07U00T 2007 UT (i=46.4°, H=21.3 ~186m) was discovered at 0652 UT on 17 Oct. by the Catalina Sky Survey (CSS), which observed it at Oct. 17.29-31p4, 17.36-40p5, and 18.33-35p4. The discovery was confirmed by Grasslands Obs. (Oct. 18.33p3) and the Mt. Lemmon Survey (MLS) (Oct. 18.36-37p4).
MPEC 2007-U21 - "10:43 UT" - 2007 US
- K07U00S 2007 US (risk-listed, H=22.8 ~93m) was discovered at 0547 UT on 16 Oct. by the MLS, which observed it at Oct. 16.24-31p8. The discovery was confirmed by Astronomical Research Obs. (ARO) (Oct. 17.13-16p3).
MPEC 2007-U20 - "09:53 UT" - 2007 UR
- K07U00R 2007 UR (small asteroid, Q=4.492 AU, H=24.1 ~51m) was discovered at 0648 UT on 16 Oct. by the MLS, which observed it at Oct. 16.28-38p8 and 18.23-24p4. The discovery was confirmed by the Spacewatch 1.8m telescope (Oct. 18.14-18p6).
<< DOU on 18 Oct. '07 >> MPEC 2007-U19 - "06:10 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K07U00H 2007 UH (small asteroid, arc=2 days, H=22.1 ~129m) from Spacewatch 1.8m (Oct. 18.21-22p3)
- K07T72H 2007 TH72 (small asteroid, arc=3 days, H=24.3 ~47m) from the Spacewatch 0.9m telescope (Oct. 16.15-18p3), Stia Obs. (Oct. 16.80-81p3), and Spacewatch 1.8m (Oct. 18.20-21p3)
- K07T24U 2007 TU24 (arc=7 days, H=20.1 ~323m) from Stia Obs. (Oct. 16.86-88p3) and Spacewatch 1.8m (Oct. 18.18-19p3)
- K07T23B 2007 TB23 (i=38.2°, arc=6 days, H=18.7 ~616m) from MLS (Oct. 14.34-37p4 & 15.40-42p4)
- K07T19H 2007 TH19 (arc=8 days, H=17.8 ~933m) from MLS (Oct. 11.44-45p4)
- Observations of recently (no longer) risk-listed objects
- K07T66C 2007 TC66 (arc=3 days, H=19.3 ~467m) from MLS (Oct. 15.33-35p4)
- K07T25A 2007 TA25 (arc=5 days, H=19.9 ~355m) from Spacewatch 0.9m (Oct. 16.14-18p3)
- K07T23L 2007 TL23 (q=0.299 AU, arc=5 days, H=21.4 ~178m) from LONEOS (Oct. 15.22-28p4)
- K07S11R 2007 SR11 (almost small, Q=4.437 AU, arc=20 days, H=21.9 ~141m) from Spacewatch 0.9m (Oct. 16.31-33p2)
- K07RE6T 2007 RT146 (arc=2 opp, H=19.2 ~490m) from MLS (Oct. 15.36-39p4)
- K07RD3Q 2007 RQ133 (Q=4.579 AU, arc=30 days, H=18.7 ~616m) from Spacewatch 0.9m (Oct. 15.26-30p3)
- Observations of small asteroids (H>22.0)
- K07T24X 2007 TX24 (arc=4 days, H=25.0 ~34m) from Spacewatch 0.9m (Oct. 15.21-24p3)
- K07T24S 2007 TS24 (Q=4.594 AU, arc=5 days, H=24.5 ~43m) from Spacewatch 0.9m (Oct. 16.25-27p2)
- K07R17Q 2007 RQ17 (arc=36 days, H=22.6 ~102m) from Spacewatch 0.9m (Oct. 15.09-13p3)
- K07R12P 2007 RP12 (arc=34 days, H=24.6 ~41m) from Spacewatch 0.9m (Oct. 15.15-19p3)
- Observations of other objects
- K07T24V 2007 TV24 (arc=5 days, H=17.8 ~933m) from Spacewatch 0.9m (Oct. 16.44-48p3)
- K07T19S 2007 TS19 (arc=7 days, H=20.8 ~234m) from GiaGa Obs. (Oct. 15.87-91p2), Stia Obs. (Oct. 16.81-83p5), Siegen Obs. (Oct. 16.97-98p2), and University Hills Obs. (Oct. 17.28-29p6)
- K07T19J 2007 TJ19 (i=40.3°, arc=7 days, H=21.0 ~214m) from Stia Obs. (Oct. 16.76-78p3)
- K07T15K 2007 TK15 (arc=8 days, H=21.1 ~204m) from Spacewatch 0.9m (Oct. 16.38-41p3)
- K07T14D 2007 TD14 (arc=2 opp, H=18.7 ~616m) from Spacewatch 0.9m (Oct. 13.34p1)
- K07T08K 2007 TK8 (arc=9 days, H=21.3 ~186m) from LONEOS (Oct. 11.27-34p4), MLS (Oct. 11.33-36p4 & 16.27p4), Spacewatch 0.9m (Oct. 13.14-18p3 & 16.14-18p3), and Spacewatch 1.8m (Oct. 15.28-29p3)
- K07T08G 2007 TG8 (Q=4.308 AU, arc=34 days, H=18.9 ~562m) from CSS (Oct. 14.18-20p4)
- K07S11V 2007 SV11 (arc=20 days, H=18.1 ~812m) from Desert Moon Obs. (Oct. 17.07-10p3)
- K07RD3M 2007 RM133 (arc=30 days, H=18.3 ~741m) from CSS (Oct. 11.30-32p4)
- K07RD3L 2007 RL133 (arc=33 days, H=20.3 ~295m) from Desert Moon Obs. (Oct. 17.20-27p3)
- K07R19X 2007 RX19 (i=40.4°, arc=33 days, H=18.4 ~708m) from Desert Moon Obs. (Oct. 17.13-16p3)
- K07R19T 2007 RT19 (arc=2 opp, H=18.3 ~741m) from CSS (Oct. 16.43-46p4)
- K07R17U 2007 RU17 (q=0.356 AU, arc=32 days, H=18.2 ~776m) from CSS (Oct. 13.19-21p4 & 15.25-28p4)
- K07R05F 2007 RF5 (arc=42 days, H=18.4 ~708m) from CSS (Oct. 14.25-27p4), GiaGa Obs. (Oct. 15.90p1 & 15.98p1), Village-Neuf Obs. (Oct. 15.92-93p5), and University Hills Obs. (Oct. 17.25-27p6)
- K07R01D 2007 RD1 (arc=44 days, H=21.6 ~162m) from CSS (Oct. 16.22-25p4)
- K07Q02K 2007 QK2 (arc=56 days, H=20.6 ~257m) from Spacewatch 0.9m (Oct. 15.10-13p3 & 16.09-12p3)
- K07P11U 2007 PU11 (Q=4.384 AU, arc=3 opp, H=16.3 ~1.86 km) from Spacewatch 0.9m (Oct. 11.28-32p3 & 13.26-29p3) and Siegen Obs. (Oct. 14.91-92p3)
- K07P08E 2007 PE8 (arc=153 days, H=19.4 ~446m) from CSS (Oct. 14.17-18p4)
- K07P08A 2007 PA8 (Q=4.700 AU, arc=67 days, H=15.9 ~2.24 km, q=0.958 AU) from MLS (Oct. 15.09-12p4)
- K07O00V 2007 OV (arc=93 days, H=19.3 ~467m) from Petit Jean Mtn. South Obs. (PJMSO) (Oct. 17.24-25p4)
- K07L32R 2007 LR32 (arc=145 days, H=17.2 ~1.23 km) from GiaGa Obs. (Oct. 15.87p1 & 15.92p1), Village-Neuf Obs. (Oct. 15.90-91p4), CSS (Oct. 16.16-18p4), and PJMSO (Oct. 17.24p6)
- K07L19Q 2007 LQ19 (Q=4.247 AU, arc=123 days, H=17.4 ~1.12 km) from MLS (Oct. 14.45-47p4)
- K05S04S 2005 SS4 (q=0.363 AU, arc=3 opp, H=19.1 ~513m) from Spacewatch 0.9m (Oct. 13.21-24p2)
- K04X35J 2004 XJ35 (arc=2 opp, H=20.3 ~295m) from Desert Moon Obs. (Oct. 17.31-36p3)
- K04V14W 2004 VW14 (arc=3 opp, H=19.4 ~446m) from MLS (Oct. 15.32-35p4)
- K03W07M 2003 WM7 (q=0.304 AU, Q=4.668 AU, arc=3 opp, H=17.4 ~1.12 km) from MLS (Oct. 17.42-44p4)
- K03SL4U 2003 SU214 (arc=2 opp, H=18.9 ~562m) from MLS (Oct. 15.15-18p4)
- K02U03O 2002 UO3 (Q=5.335 AU, arc=3 opp, H=17.7 ~977m) from CSS (Oct. 15.31-34p4)
- K02S00V 2002 SV (arc=2 opp, H=19.8 ~371m) from LONEOS (Oct. 13.26-32p4)
- K02RB8C 2002 RC118 (Q=4.624 AU, arc=2 opp, H=16.7 ~1.55 km) from Spacewatch 0.9m (Oct. 11.27-31p6) and Siegen Obs. (Oct. 16.96p2)
- K01R47Y 2001 RY47 (arc=3 opp, H=19.5 ~426m) from PJMSO (Oct. 17.26-27p5)
- K00S43Q 2000 SQ43 (arc=4 opp, H=18.6 ~645m) from CSS (Oct. 13.31-33p4)
- J98X09C 1998 XC9 (Q=4.212 AU, arc=3 opp, H=18.1 ~812m) from CSS (Oct. 14.19-21p4)
- G3902 163902 2003 SW222 from Isle of Man Obs. (Oct. 16.89-92p3)
- G3697 163697 2003 EF54 from CSS (Oct. 13.19-21p4)
- G2980 162980 2001 RR17 from CSS (Oct. 11.20-23p4)
- G2273 162273 1999 VL12 from CSS (Oct. 16.36-38p4)
- G1998 161998 1988 PA from Isle of Man Obs. (Oct. 16.95-97p2 at C=22.4) and LONEOS (Oct. 17.25-32p4)
- F2787 152787 1999 TB10 from CSS (Oct. 14.25-28p4)
- E3678 143678 2003 SA224 from CSS (Oct. 16.40-42p3)
- A0756 100756 1998 FM5 from CSS (Oct. 15.22-24p4)
- 87311 87311 2000 QJ1 from CSS (Oct. 13.46-48p4)
- 85938 85938 1999 DJ4 from Spacewatch 0.9m (Oct. 15.15-19p3)
- 35107 35107 1991 VH from CSS (Oct. 11.49-51p4 & 15.49-51p4)
- 23548 23548 1994 EF2 from MLS (Oct. 15.47-48p4)
- 22771 22771 1999 CU3 from Siegen Obs. (Oct. 16.86p2)
- 21374 21374 1997 WS22 from CSS (Oct. 17.38-41p4)
- 17182 17182 1999 VU from CSS (Oct. 14.25-28p4)
- 16816 16816 1997 UF9 from CSS (Oct. 12.23-32p8)
- 16657 16657 1993 UB from CSS (Oct. 12.46-48p4)
- 16636 16636 1993 QP from Isle of Man Obs. (Oct. 17.04-08p3)
- 15745 15745 1991 PM5 from CSS (Oct. 11.36-38p4 & 17.34-36p4)
- 12711 12711 1991 BB from MLS (Oct. 15.49-50p4)
- 11500 11500 1989 UR from Isle of Man Obs. (Oct. 17.03-06p3)
- 08034 8034 Akka (1992 LR) from CSS (Oct. 15.38-40p4)
- 07092 7092 Cadmus (1992 LC) from CSS (Oct. 11.27-30p4 & 15.32-34p4)
- 04954 4954 Eric (1990 SQ) from Siegen Obs. (Oct. 14.87p3) and Mt. Tuffley Obs. (Oct. 17.81-82p3)
- 02212 2212 Hephaistos (1978 SB) from CSS (Oct. 15.29-30p4)
- 02201 2201 Oljato (1947 XC) from MLS (Oct. 15.22-25p4)
- 01221 1221 Amor (1932 EA1) from Spacewatch 0.9m (Oct. 13.10-12p2 & 16.10-12p2)
Observers on 18 October '07
Seventeen observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| H55 | Astronomical Research Obs. in Illinois, 1 in MPEC 2007-U21 -- 2007 US |
| 703 | Catalina Sky Survey (CSS) in Arizona, 28 in MPECs 2007-U19 & 2007-U22 -- 2007 UT, 2007 TG8, 2007 RU17, 2007 RT19, 2007 RM133, 2007 RF5, 2007 RD1, 2007 PE8, 2007 LR32, 2002 UO3, 2000 SQ43, 1998 XC9, 87311, 35107, 21374, 17182, 16816, 16657, 163697, 162980, 162273, 15745, 152787, 143678, 100756, 8034, 7092, 2212 |
| 448 | Desert Moon Obs. in New Mexico, 4 in MPEC 2007-U19 -- 2007 SV11, 2007 RX19, 2007 RL133, 2004 XJ35 |
| 203 | GiaGa Obs. in Italy, 3 in MPEC 2007-U19 -- 2007 TS19, 2007 RF5, 2007 LR32 |
| 651 | Grasslands Obs. in Arizona, 1 in MPEC 2007-U22 -- 2007 UT |
| 987 | Isle of Man Obs. on the Isle of Man, 4 in MPEC 2007-U19 -- 16636, 163902, 161998, 11500 |
| 699 | LONEOS in Arizona, 4 in MPEC 2007-U19 -- 2007 TL23, 2007 TK8, 2002 SV, 161998 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2007-U19, 2007-U20, 2007-U21 & 2007-U22 -- 2007 UT, 2007 US, 2007 UR, 2007 TK8, 2007 TH19, 2007 TC66, 2007 TB23, 2007 RT146, 2007 PA8, 2007 LQ19, 2004 VW14, 2003 WM7, 2003 SU214, 23548, 12711, 2201 |
| J93 | Mt. Tuffley Obs. in England, 1 in MPEC 2007-U19 -- 4954 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2007-U19 -- 2007 OV, 2007 LR32, 2001 RY47 |
| 510 | Siegen Obs. in Germany, 5 in MPEC 2007-U19 -- 2007 TS19, 2007 PU11, 2002 RC118, 22771, 4954 |
| 2492 | LASCO Coronagraph 2 (SOHO C2) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 5 in MPECs 2007-U23 & 2007-U24 -- C/2007 N7, C/2007 N6, C/2007 N5, C/2007 N4, C/2007 K21 |
| 2493 | LASCO Coronagraph 3 (SOHO C3) via the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 8 in MPECs 2007-U23 & 2007-U24 -- C/2007 O4, C/2007 O3, C/2007 N8, C/2007 N7, C/2007 N6, C/2007 N5, C/2007 N4, C/2004 E5 |
| 691 | Spacewatch 0.9m telescope in Arizona, 18 in MPEC 2007-U19 -- 2007 TX24, 2007 TV24, 2007 TS24, 2007 TK8, 2007 TK15, 2007 TH72, 2007 TD14, 2007 TA25, 2007 SR11, 2007 RQ17, 2007 RQ133, 2007 RP12, 2007 QK2, 2007 PU11, 2005 SS4, 2002 RC118, 85938, 1221 |
| 291 | Spacewatch 1.8m telescope in Arizona, 5 in MPECs 2007-U19 & 2007-U20 -- 2007 UR, 2007 UH, 2007 TU24, 2007 TK8, 2007 TH72 |
| A78 | Stia Obs. in Italy, 4 in MPEC 2007-U19 -- 2007 TU24, 2007 TS19, 2007 TJ19, 2007 TH72 |
| G72 | University Hills Obs. in southern California, 2 in MPEC 2007-U19 -- 2007 TS19, 2007 RF5 |
| 138 | Village-Neuf Obs. in France, 2 in MPEC 2007-U19 -- 2007 RF5, 2007 LR32 |
Impact Risk Monitoring on 18 October '07
| 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 |
| 2007 US | JPL Sentry | 1503 | 2015-2101 | 15 | 4.5e-09 | -7.28 | -7.63 | 0 | JPL: "Analysis based on 11 observations spanning .92225 days (2007-Oct-16.24142 to 2007-Oct-17.163668)." Diameter approximately 0.073 km. from mean, weighted H=23.3. |
| 2007 UH | JPL Sentry | 1356 | R E M O V E D | JPL: Risk listing removed at 1159 UTC. | |||||
| NEODyS | 1356 | R E M O V E D | |||||||
| 2007 TH72 | NEODyS | 1357 | 2087 | 1 | 4.94e-09 | -8.05 | -8.05 | 0 | NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2007/10/15.204 to 2007/10/18.206." |
| 2007 TU24 | NEODyS | 1357 | 2045-2088 | 5 | 1.22e-06 | -3.58 | -3.62 | 0 | NEODyS: "Based on 62 optical observations (of which 0 are rejected as outliers) from 2007/10/11.269 to 2007/10/18.192." |
| JPL Sentry | 1356 | 2039-2104 | 32 | 9.0e-06 | -2.99 | -3.15 | 0 | JPL: "Analysis based on 62 observations spanning 6.9230 days (2007-Oct-11.26838 to 2007-Oct-18.19134)." Diameter approximately 0.328 km. from mean, weighted H=20.1. | |
| 2007 TB23 | JPL Sentry | 1356 | 2066-2107 | 3 | 6.7e-07 | -3.16 | -3.16 | 0 | JPL: "Analysis based on 48 observations spanning 6.0700 days (2007-Oct-10.38885 to 2007-Oct-16.45887)." Diameter approximately 0.620 km. from mean, weighted H=18.7. |
| NEODyS | 1356 | R E M O V E D | |||||||
| 2007 TH19 | JPL Sentry | 1356 | R E M O V E D | JPL: Risk listing removed at 1011 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 18 October '07
Times are UTC for when the items were noted or added by The Tracking News.
| 2100 | Grabbed MPEC 2007-U23 - Comets C/2004 E5, 2007 K21, 2007 N4, 2007 N5, 2007 N6 (SOHO) - see above Grabbed MPEC 2007-U24 - Comets C/2007 N7, 2007 N8, 2007 O3, 2007 O4 (SOHO) - see above |
| 1502 | Noted that JPL Sentry has posted 2007 US as an impact risk - see above |
| 1357 | Noted that NEODyS has updated its 2007 TH72 risk assessment - see above Noted that NEODyS has updated its 2007 TU24 risk assessment - see above Grabbed MPEC 2007-U19 - Daily Orbit Update - see above |
| 1356 | Noted that JPL Sentry has updated its 2007 TB23 risk assessment - see above Noted that NEODyS has removed 2007 TB23 as an impact risk - see above Noted that JPL Sentry has removed 2007 TH19 as an impact risk - see above Noted that JPL Sentry has updated its 2007 TU24 risk assessment - see above Noted that JPL Sentry has removed 2007 UH as an impact risk - see above Noted that NEODyS has removed 2007 UH as an impact risk - see above Grabbed MPEC 2007-U20 - 2007 UR - see above Grabbed MPEC 2007-U21 - 2007 US - see above Grabbed MPEC 2007-U22 - 2007 UT - see above |
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2007 Columbine, Inc. - All Rights Reserved
Any mentioned trademarks are the property of their respective owners.
Various tabular formats and data used on this page are acknowledged as belonging to JPL, MPC, NEODyS, and/or others.
Do NOT copy, mirror, or embed this page, but you are welcome to link to it, and you may embed the RSS news feed. All information here is subject to very frequent change during the day of news compilation. Individuals may make copies for their own private, non-commercial use. Please report broken links or other problems with this page to <webmaster@hohmanntransfer.com> (HTML 4.01 validation).
Important news updates are flagged by A/CC's RSS news feed (link).