Please check out A/CC's new multipage version of Timeline & Statistics for Earth's Busy Neighborhood. The previous version had grown into a 127Kb file even without adding discovery, last-observation, and closest approach times and without expanding the timeline backwards. This new version adds all those details plus a chart (excerpt shown) and tables with null-activity periods, Earth and lunar closest approaches, and credit for those who most often catch the last observation of objects.
Contents on 16 June '08
- IAU Minor Planet Center
- NEOCP Activity -- one listing: 1 updated
- New MPECs -- eight MPECs
- Observers -- 48 observing facilities
- Impact Risk Monitoring -- four objects
- Chronology
Resources:
- Consolidated Risk Tables - the CRT page
- Earth's Busy Neighborhood Traffic Report
- Ephemerides for risk-rated and nearby objects
- 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 16 June '08
The MPC's NEO Confirmation Page has 1 listing: 1 updated
When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one updated listing. This was a "one nighter." So far The Tracking News has counted a total of four 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 16 June '08
Minor Planet Electronic Circulars
As of last check at 2357 UTC, there have been eight MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-M01 time-stamped "01:11 UT" - Comet C/2008 H1 (LINEAR) - see below
- MPEC 2008-M02 time-stamped "01:25 UT" - Comet C/2008 J1 (Boattini) - see below
- MPEC 2008-M03 time-stamped "01:28 UT" - Comet P/2008 J2 (Beshore) - see below
- MPEC 2008-M04 time-stamped "01:31 UT" - Comet C/2008 J6 (Hill) - see below
- MPEC 2008-M05 time-stamped "01:38 UT" - Observations of Comets - see below
- MPEC 2008-M06 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2008-M07 time-stamped "14:21 UT" - 2008 LV16 - see below
- MPEC 2008-M08 time-stamped "16:12 UT" - 2008 LW16
MPEC 2008-M08 - "16:12 UT" - 2008 LW16
- K08L16W 2008 LW16 (risk-listed, Earth MOID=5.6 LD, H=19.6 ~407m) was discovered at 0909 UT on 15 June by the Catalina Sky Survey (CSS), which observed it at June 15.38-40p4 and 16.34-36p4. The discovery was confirmed by Richard Miles via Faulkes Telescope North (June 16.60p3).
MPEC 2008-M07 - "14:21 UT" - 2008 LV16
- K08L16V 2008 LV16 (risk-listed, Q=4.101 AU, Earth MOID=1.2 LD, H=19.7 ~389m) was discovered at 0906 UT on 15 June by CSS, which observed it at June 15.38-40p4 and 16.34-35p4. The discovery was confirmed by Golden Hill Obs. (June 16.03-07p3) and Jim Young via Table Mtn. Obs. (June 16.46-48p4).
<< DOU on 16 June '08 >> MPEC 2008-M06 - "06:08 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K08L02G 2008 LG2 (small asteroid, arc=12 days, H=25.3 ~29m) from Astronomical Research Obs. (ARO) (June 15.20p4)
- K08K11N 2008 KN11 (small asteroid, arc=16 days, H=23.2 ~78m) from ARO (June 15.21-22p3)
- Observations of recently (no longer) risk-listed objects
- K08L08W 2008 LW8 (arc=6 days, H=17.3 ~1.17 km) from Desert Moon Obs. (June 15.38-40p3)
- Observations of small asteroids (H>22.0)
- K08L02H 2008 LH2 (arc=11 days, H=24.7 ~39m) from Desert Moon Obs. (June 15.24-29p3)
- K08H00G 2008 HG (arc=19 days, H=23.8 ~59m) from Bisei Spaceguard Center (April 28.69-70p4)
- K08GB0D 2008 GD110 (arc=10 days, H=24.5 ~43m) from Bisei (April 21.45p5 & 22.50p5)
- K08G03R 2008 GR3 (arc=69 days, H=25.0 ~34m) from ARO (June 15.36-38p3)
- K08E84X 2008 EX84 (arc=95 days, H=22.3 ~117m) from ARO (June 15.27p1 at V=22.4)
- Observations of other objects
- K08L16Q 2008 LQ16 (arc=1 day, H=20.5 ~269m) from ARO (June 15.34-35p4)
- K08K02W 2008 KW2 (i=37.3°, arc=16 days, H=19.7 ~389m) from ARO (June 12.13p3)
- K08J14Q 2008 JQ14 (arc=41 days, H=19.2 ~490m) from ARO (June 12.11-12p2) and Desert Moon Obs. (June 15.16-21p3)
- K08J00J 2008 JJ (i=44.6°, arc=39 days, H=19.2 ~490m) from Bisei (May 3.75-76p3)
- K08H38B 2008 HB38 (arc=46 days, H=21.1 ~204m) from Young/Table Mtn. (June 15.25-27p4)
- K08H03D 2008 HD3 (i=52.0°, arc=48 days, H=19.7 ~389m) from ARO (June 15.11-14p3)
- K08H00E 2008 HE (q=0.114 AU, Q=4.421 AU, arc=33 days, H=18.0 ~851m) from Bisei (April 22.45-46p5 & 24.46-47p4)
- K08GB0H 2008 GH110 (arc=62 days, H=19.8 ~371m) from ARO (June 15.15-17p3)
- K08E69D 2008 ED69 (i=36.3°, Q=5.048 AU, arc=88 days, H=17.0 ~1.35 km) from Bisei (May 31.72p3)
- K08D00Y 2008 DY (Q=4.342 AU, arc=110 days, H=20.9 ~224m) from ARO (June 15.20-22p3)
- K08A32F 2008 AF32 (arc=154 days, H=21.0 ~214m) from ARO (June 15.18-19p3)
- K07X16H 2007 XH16 (arc=190 days, H=19.7 ~389m) from ARO (June 15.34p1)
- K07VI3R 2007 VR183 (Q=4.353 AU, arc=264 days, H=17.5 ~1.07 km) from Bisei (May 11.49-50p4)
- K06Y00D 2006 YD (Q=4.442 AU, arc=2 opp, H=17.4 ~1.12 km) from Tiki Obs. (2007 April 9.60-64p3)
- K05T45G 2005 TG45 (IEO, Q=0.935 AU, arc=2 opp, H=17.6 ~1.02 km) from Desert Moon Obs. (June 15.42-43p3)
- K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from Bisei (May 11.58p4) and LINEAR (June 15.26-30p5)
- K05L19Y 2005 LY19 (arc=2 opp, H=16.4 ~1.78 km) from Tiki Obs. (2007 April 27.60-63p2)
- F4278 154278 2002 TB9 from CSS (June 15.29-30p4)
- F3792 153792 2001 VH75 from the Siding Spring Survey (SSS) (June 15.53-55p4)
- D7170 137170 1999 HF1 from Balzaretto Obs. (June 14.97-98p4)
- D6923 136923 1998 JH2 from Desert Moon Obs. (June 15.45-46p2)
- 90367 90367 2003 LC5 from SSS (June 15.53-55p3)
- 35107 35107 1991 VH from Balzaretto Obs. (June 15.00-02p4)
MPEC 2008-M05 - "01:38 UT" - Observations of Comets
- CK08E030 C/2008 E3 (Garradd) from North Ryde Obs. (June 12.49-51p2 & 13.58p1)
- CK08C010 C/2008 C1 (Chen-Gao) from Bisei (April 21.46p4 & 25.45p4)
- CK08A010 C/2008 A1 (McNaught) from Kambah Obs. (June 6.38p2) and Mt. John Obs. (June 11.31-32p3)
- CK07W010 C/2007 W1 (Boattini) from Remanzacco Obs. (May 2.83p1) and Mt. John Obs. (June 11.29p6)
- CK07T050 C/2007 T5 (Gibbs) from Buchloe Obs. (May 7.86p3) and Chante-Perdrix Obs. (June 10.87p1)
- CK07N030 C/2007 N3 (Lulin) from Ageo Obs. (June 9.72-73p3), Moriyama Obs. (June 12.75-77p2), Hiratsuka Obs. (June 13.67-68p3), Atlante Obs. (June 14.10-11p3), and Rodeno Obs. (June 14.00-02p3)
- CK07G010 C/2007 G1 (LINEAR) from CAST Obs. (June 10.89p1), Moriyama Obs. (June 12.62-64p2), Ageo Obs. (June 12.64p3), Carmelita Obs. (June 12.88p3), Altamira Obs. (June 13.00-01p3), and Balzaretto Obs. (June 14.89-91p4)
- CK07B020 C/2007 B2 (Skiff) from La Vara Obs. (June 8.92-93p3) and Rodeno Obs. (June 14.88-90p3)
- CK06X01A C/2006 XA1 (LINEAR) from Mt. John Obs. (May 10.57p2 & June 10.43-44p3)
- CK06W030 C/2006 W3 (Christensen) from Hobbs Obs. (May 19.12-13p2) and Ageo Obs. (June 9.77p2 & 12.75-76p3)
- CK06U060 C/2006 U6 (Spacewatch) from Kambah Obs. (May 8.40p2) and Mt. John Obs. (June 11.33-34p3)
- CK06O02F C/2006 OF2 (Broughton) from Ageo Obs. (June 9.74p3), Yatsuka Obs. (June 12.75-76p3), and Moriyama Obs. (June 13.73-75p2)
- PK05SL6B P/2005 SB216 (LONEOS) from the Spacewatch 1.8m telescope (June 10.17-18p5 & 11.18-19p3)
- CK05S040 C/2005 S4 (McNaught) from Petit Jean Mtn. South Obs. (PJMSO) (June 3.30-31p5), Nazaret Obs. (June 9.97-98p3), and Moriyama Obs. (June 13.65-67p2)
- CK05L030 C/2005 L3 (McNaught) from Vega del Thader Obs. (June 7.00p3 & 13.99-00p14), Remanzacco Obs. (June 9.87-88p3), Wildberg Obs. (June 9.88-89p3), Nazaret Obs. (June 9.91-92p5 & 14.95p3), Atlante Obs. (June 9.94p3 & 13.90-91p3), CAST Obs. (June 10.88p1), Ametlla del Valles Obs. (June 10.95-96p7 & 12.92-93p4), Montcabre Obs. (June 11.89p3), La Mata Obs. (June 11.92-93p3), La Canada Obs. (June 11.97-98p3), Altamira Obs. (June 12.00-01p3), Moriyama Obs. (June 12.58-60p2), Montana Blanca Obs. (June 13.90p3), Monte Deva Obs. (June 13.99-00p5), Rodeno Obs. (June 14.94-95p3), and LINEAR (June 15.22-26p5)
- CK02V94Q C/2002 VQ94 (LINEAR) from Ametlla del Valles Obs. (June 10.97-98p3 & 12.89-94p4)
- 0186P 186P/Garradd from Kambah Obs. (June 5.60p2) and North Ryde Obs. (June 12.35p1 & 12.42p1)
- 0099P 99P/Kowal 1 from Nazaret Obs. (June 8.08-09p3 & 10.03-04p4)
- 0068P 68P/Klemola from Nazaret Obs. (June 9.93p3), CAST Obs. (June 10.88p1), the Spacewatch 0.9m telescope (June 11.25-29p3), Atlante Obs. (June 11.92-94p3), La Canada Obs. (June 11.95-96p3), and Ametlla del Valles Obs. (June 12.94-96p5)
- 0046P 46P/Wirtanen from La Vara Obs. (June 7.89-90p3 & 8.89-90p2) and Nazaret Obs. (June 10.91-92p3)
- 0026P 26P/Grigg-Skjellerup from Nazaret Obs. (June 10.05p4 & 14.09-10p3), Moriyama Obs. (June 12.69-70p2), Paus Obs. (June 13.05p1), PJMSO (June 13.33-34p5), Hiratsuka Obs. (June 13.64-65p3), and Ageo Obs. (June 13.70p2)
- 0015P 15P/Finlay from Ageo Obs. (June 9.75-76p3), Yatsuka Obs. (June 12.77p3), and Moriyama Obs. (June 13.77p2)
- 0007P 7P/Pons-Winnecke from CSS (June 10.18-19p3), Nazaret Obs. (June 10.88-89p3), and LINEAR (June 14.16-20p4)
- 0006P 6P/d'Arrest from Remanzacco Obs. (June 9.92-93p3), Nazaret Obs. (June 9.00-01p5, 14.04-06p3 & 14.97-99p4), Atlante Obs. (June 11.02-03p2 & 12.00-02p3), Moriyama Obs. (June 12.67p2), Paus Obs. (June 12.92-93p2), Malaga Obs. (June 12.98-00p3), and PJMSO (June 13.29-32p6)
MPEC 2008-M04 - "01:31 UT" - Comet C/2008 J6 (Hill)
- CK08J060 C/2008 J6 (Hill) (i=45.0°, q=2.002 AU, TP=2008 Apr. 10.8438 TT) from Bisei (May 31.73p5), Modra Obs. (June 9.00-01p4), Ageo Obs. (June 12.73-74p3), Moriyama Obs. (June 12.73-74p2), Paus Obs. (June 13.10p1), Atlante Obs. (June 13.12-19p3), and RAS Obs. Mayhill (June 14.38-41p2 & 15.34-36p2)
MPEC 2008-M03 - "01:28 UT" - Comet P/2008 J2 (Beshore)
- PK08J020 P/2008 J2 (Beshore) (q=2.410 AU, Q=4.553 AU, TP=2008 Mar. 20.7550 TT) from Ageo Obs. (June 9.68p2), Nazaret Obs. (June 9.94-95p3), Montana Cabreja Obs. (June 10.09-10p2), Farm Cove Obs. (June 10.45-46p3), Atlante Obs. (June 11.96-97p3), Altamira Obs. (June 12.03-05p3), and Moriyama Obs. (June 12.61-62p2)
MPEC 2008-M02 - "01:25 UT" - Comet C/2008 J1 (Boattini)
- CK08J010 C/2008 J1 (Boattini) (i=61.8°, q=1.724 AU, Q=325.209 AU, TP=2008 July 13.2621 TT) from Bisei (May 12.65p5), Montana Cabreja Obs. (June 10.04-06p2 & 12.01-03p2), CAST Obs. (June 10.90p1), Mt. Tuffley Obs. (June 11.01p3), Montcabre Obs. (June 11.93-94p3), La Mata Obs. (June 11.97-98p3), Atlante Obs. (June 12.03-04p3), LINEAR (June 12.33-37p5), Ageo Obs. (June 12.71p3), Carmelita Obs. (June 12.94-95p3), Paus Obs. (June 12.96p2), Malaga Obs. (June 13.01-04p4), PJMSO (June 13.32-33p5), Moriyama Obs. (June 13.59-60p2), Stammersdorf Obs. (June 13.00-02p5), Monte Deva Obs. (June 14.06p5), Nazaret Obs. (June 14.11p4), RAS Mayhill (June 14.41p1), Rodeno Obs. (June 14.97p3), and CSS (June 15.47p4)
MPEC 2008-M01 - "01:11 UT" - Comet C/2008 H1 (LINEAR)
- CK08H010 C/2008 H1 (LINEAR) (i=75.5°, q=2.760 AU, Q=99.410 AU, TP=2008 Mar. 16.3984 TT) from Bisei (April 22.66p3, 24.63-64p5 & May 12.63-64p5), Nazaret Obs. (June 10.93-95p3), and Moriyama Obs. (June 12.51-54p2)
Observers on 16 June '08
A total of 48 observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| 349 | Ageo Obs. in Japan, 9 in MPECs 2008-M02, 2008-M03, 2008-M04 & 2008-M05 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2007 N3, C/2007 G1, C/2006 W3, C/2006 OF2, 26P, 15P |
| J24 | Altamira Obs. in Spain, 3 in MPECs 2008-M03 & 2008-M05 -- P/2008 J2, C/2007 G1, C/2005 L3 |
| B37 | Ametlla del Valles Obs. in Spain, 3 in MPEC 2008-M05 -- C/2005 L3, C/2002 VQ94, 68P |
| H55 | Astronomical Research Obs. (ARO) in Illinois, 12 in MPEC 2008-M06 -- 2008 LQ16, 2008 LG2, 2008 KW2, 2008 KN11, 2008 JQ14, 2008 HD3, 2008 GR3, 2008 GH110, 2008 EX84, 2008 DY, 2008 AF32, 2007 XH16 |
| J51 | Atlante Obs. in the Canary Islands, 7 in MPECs 2008-M02, 2008-M03, 2008-M04 & 2008-M05 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2007 N3, C/2005 L3, 68P, 6P |
| A81 | Balzaretto Obs. in Italy, 3 in MPECs 2008-M05 & 2008-M06 -- C/2007 G1, 35107, 137170 |
| 300 | Bisei Spaceguard Center in Japan, 11 in MPECs 2008-M01, 2008-M02, 2008-M04, 2008-M05 & 2008-M06 -- 2008 JJ, C/2008 J6, C/2008 J1, 2008 HG, 2008 HE, C/2008 H1, 2008 GD110, 2008 ED69, C/2008 C1, 2007 VR183, 2005 NB7 |
| 215 | Buchloe Obs. in Germany, 1 in MPEC 2008-M05 -- C/2007 T5 |
| 235 | CAST Obs. in Italy, 4 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2007 G1, C/2005 L3, 68P |
| B20 | Carmelita Obs. in Spain, 2 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2007 G1 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2008-M02, 2008-M05, 2008-M06, 2008-M07 & 2008-M08 -- 2008 LW16, 2008 LV16, C/2008 J1, 154278, 7P |
| A77 | Chante-Perdrix Obs. in France, 1 in MPEC 2008-M05 -- C/2007 T5 |
| 448 | Desert Moon Obs. in New Mexico, 5 in MPEC 2008-M06 -- 2008 LW8, 2008 LH2, 2008 JQ14, 2005 TG45, 136923 |
| E85 | Farm Cove Obs. in New Zealand, 1 in MPEC 2008-M03 -- P/2008 J2 |
| F656 | Richard Miles in England via Faulkes Telescope North in Hawaii, 1 in MPEC 2008-M08 -- 2008 LW16 |
| J77 | Golden Hill Obs. in England, 1 in MPEC 2008-M07 -- 2008 LV16 |
| D88 | Hiratsuka Obs., 2 in MPEC 2008-M05 -- C/2007 N3, 26P |
| 750 | Hobbs Obs. in Wisconsin, 1 in MPEC 2008-M05 -- C/2006 W3 |
| 415 | Kambah Obs. in the Australian Capital Territory, 3 in MPEC 2008-M05 -- C/2008 A1, C/2006 U6, 186P |
| 704 | LINEAR in New Mexico, 4 in MPECs 2008-M02, 2008-M05 & 2008-M06 -- C/2008 J1, 2005 NB7, C/2005 L3, 7P |
| J87 | La Canada Obs. in Spain, 2 in MPEC 2008-M05 -- C/2005 L3, 68P |
| J64 | La Mata Obs. in Spain, 2 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2005 L3 |
| J38 | La Vara Obs. in Spain, 2 in MPEC 2008-M05 -- C/2007 B2, 46P |
| J40 | Malaga Obs. in Spain, 2 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, 6P |
| 118 | Modra Obs. in Slovakia, 1 in MPEC 2008-M04 -- C/2008 J6 |
| J46 | Montana Blanca Obs. in the Canary Islands, 1 in MPEC 2008-M05 -- C/2005 L3 |
| J45 | Montana Cabreja Obs. in the Canary Islands, 2 in MPECs 2008-M02 & 2008-M03 -- P/2008 J2, C/2008 J1 |
| 213 | Montcabre Obs. in Spain, 2 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2005 L3 |
| 945 | Monte Deva Obs. in Spain, 2 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2005 L3 |
| 900 | Moriyama Obs. in Japan, 12 in MPECs 2008-M01, 2008-M02, 2008-M03, 2008-M04 & 2008-M05 -- C/2008 J6, P/2008 J2, C/2008 J1, C/2008 H1, C/2007 N3, C/2007 G1, C/2006 OF2, C/2005 S4, C/2005 L3, 26P, 15P, 6P |
| 474 | Mt. John Obs. in New Zealand, 4 in MPEC 2008-M05 -- C/2008 A1, C/2007 W1, C/2006 XA1, C/2006 U6 |
| J93 | Mt. Tuffley Obs. in England, 1 in MPEC 2008-M02 -- C/2008 J1 |
| J47 | Nazaret Obs. in Spain, 11 in MPECs 2008-M01, 2008-M02, 2008-M03 & 2008-M05 -- P/2008 J2, C/2008 J1, C/2008 H1, C/2005 S4, C/2005 L3, 99P, 68P, 46P, 26P, 7P, 6P |
| 423 | North Ryde Obs. in New South Wales, 2 in MPEC 2008-M05 -- C/2008 E3, 186P |
| B49 | Paus Obs. in Spain, 4 in MPECs 2008-M02, 2008-M04 & 2008-M05 -- C/2008 J6, C/2008 J1, 26P, 6P |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 4 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2005 S4, 26P, 6P |
| H06 | RAS Obs. Mayhill in New Mexico, 2 in MPECs 2008-M02 & 2008-M04 -- C/2008 J6, C/2008 J1 |
| 473 | Remanzacco Obs. in Italy, 3 in MPEC 2008-M05 -- C/2007 W1, C/2005 L3, 6P |
| 939 | Rodeno Obs. in Spain, 4 in MPECs 2008-M02 & 2008-M05 -- C/2008 J1, C/2007 N3, C/2007 B2, C/2005 L3 |
| E12 | Siding Spring Survey (SSS) in New South Wales, 2 in MPEC 2008-M06 -- 90367, 153792 |
| 691 | Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2008-M05 -- 68P |
| 291 | Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2008-M05 -- P/2005 SB216 |
| A97 | Stammersdorf Obs. in Austria, 1 in MPEC 2008-M02 -- C/2008 J1 |
| 6735 | Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2008-M06 & 2008-M07 -- 2008 LV16, 2008 HB38 |
| F85 | Tiki Obs. in Tahiti, 2 in MPEC 2008-M06 -- 2006 YD, 2005 LY19 |
| J70 | Vega del Thader Obs. in Spain, 1 in MPEC 2008-M05 -- C/2005 L3 |
| 198 | Wildberg Obs. in Germany, 1 in MPEC 2008-M05 -- C/2005 L3 |
| 367 | Yatsuka Obs., 2 in MPEC 2008-M05 -- C/2006 OF2, 15P |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 16 June '08
| 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 |
| 2008 LW16 | JPL Sentry | 1936 | 2017-2105 | 135 | 9.7e-07 | -2.91 | -3.26 | 0 | JPL: "Analysis based on 11 observations spanning 1.2157 days (2008-Jun-15.38141 to 2008-Jun-16.59712)." Diameter approximately 0.410 km. from mean, weighted H=19.6. |
| 2008 LV16 | JPL Sentry | 1640 | 2011-2107 | 303 | 1.4e-06 | -2.76 | -3.55 | 0 | JPL: "Analysis based on 15 observations spanning 1.1020 days (2008-Jun-15.3798 to 2008-Jun-16.48183)." Diameter approximately 0.388 km. from mean, weighted H=19.7. |
| 2008 LG2 | NEODyS | 1413 | 2058-2090 | 12 | 3.29e-06 | -5.96 | -6.31 | 0 | NEODyS: "Based on 94 optical observations (of which 0 are rejected as outliers) from 2008/06/03.318 to 2008/06/15.205." |
| JPL Sentry | 1411 | 2038-2105 | 14 | 4.8e-06 | -5.83 | -6.30 | 0 | JPL: "Analysis based on 94 observations spanning 11.886 days (2008-Jun-03.31737 to 2008-Jun-15.203848)." Diameter approximately 0.029 km. from mean, weighted H=25.3. | |
| 2008 KN11 | NEODyS | 1412 | 2037-2046 | 5 | 2.3e-07 | -5.59 | -5.96 | 0 | NEODyS: "Based on 103 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/15.220." |
| JPL Sentry | 1411 | 2037-2046 | 3 | 2.4e-07 | -5.59 | -5.91 | 0 | JPL: "Analysis based on 103 observations spanning 15.885 days (2008-May-30.33435 to 2008-Jun-15.219052)." Diameter approximately 0.076 km. from mean, weighted H=23.2. | |
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 16 June '08
Times are UTC for when items were noted or added by The Tracking News.
| 1936 | Noted that JPL Sentry has posted 2008 LW16 as an impact risk - see above |
| 1640 | Noted that JPL Sentry has posted 2008 LV16 as an impact risk - see above Grabbed MPEC 2008-M08 - 2008 LW16 - see above |
| 1555 | Grabbed MPEC 2008-M07 - 2008 LV16 - see above |
| 1413 | Noted that NEODyS has updated its 2008 LG2 risk assessment - see above |
| 1412 | Noted that NEODyS has updated its 2008 KN11 risk assessment - see above |
| 1411 | Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that JPL Sentry has updated its 2008 LG2 risk assessment - see above Grabbed MPEC 2008-M06 - Daily Orbit Update - see above |
| 0146 | Grabbed MPEC 2008-M01 - Comet C/2008 H1 (LINEAR) - see above Grabbed MPEC 2008-M02 - Comet C/2008 J1 (Boattini) - see above Grabbed MPEC 2008-M03 - Comet P/2008 J2 (Beshore) - see above Grabbed MPEC 2008-M04 - Comet C/2008 J6 (Hill) - see above Grabbed MPEC 2008-M05 - Observations of Comets - see above |
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