Contents on 18 June '08
- IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- two MPECs
- Observers -- nine 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 18 June '08
The MPC's NEO Confirmation Page is currently empty
The NEOCP is currently empty. There was one listing noted earlier today.
New MPECs on 18 June '08
Minor Planet Electronic Circulars
As of last check at 2357 UTC, there have been two MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2008-M12 time-stamped "06:08 UT" - Daily Orbit Update - see below
- MPEC 2008-M13 time-stamped "21:53 UT" - Comets C/2008 K1, 2008 K2, 2008 K3, 2008 K4, 2008 K5 (SOHO)
MPEC 2008-M13 - "21:53 UT" - Comets C/2008 K1, 2008 K2, 2008 K3, 2008 K4, 2008 K5 (SOHO)
- CK08K050 C/2008 K5 from the LASCO Coronagraph 2 aboard the Solar & Heliospheric Obs. (SOHO) (May 23.58-75p26)
- CK08K040 C/2008 K4 from the LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. (SOHO) (May 21.99-01p4, 22.07-20p12, 22.25-30p6, 22.35-57p24, 22.74-93p20, 22.97-03p6, 23.07-26p18, 23.32-36p6 & 23.40p2) and SOHO C2 (May 23.41-75p48)
- CK08K030 C/2008 K3 from SOHO C2 (May 17.86-99p26)
- CK08K020 C/2008 K2 from SOHO C2 (May 17.65-73p20)
- CK08K010 C/2008 K1 from SOHO C2 (May 17.32-39p20)
<< DOU on 18 June '08 >> MPEC 2008-M12 - "06:08 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K08L16W 2008 LW16 (arc=2 days, H=19.7 ~389m) from Astronomical Research Obs. (ARO) (June 17.31-32p4)
- K08L02G 2008 LG2 (small asteroid, arc=14 days, H=25.3 ~29m) from ARO (June 17.12-13p4)
- K08L00A 2008 LA (small asteroid, arc=16 days, H=23.2 ~78m) from ARO (June 17.14-15p3)
- K08K11N 2008 KN11 (small asteroid, arc=19 days, H=23.2 ~78m) from ARO (June 17.22-23p4) and Great Shefford Obs. (June 17.96-97p3)
- Observations of recently (no longer) risk-listed objects
- K08L08W 2008 LW8 (arc=8 days, H=17.3 ~1.17 km) from ARO (June 17.33-34p3)
- K08K05Z 2008 KZ5 (arc=19 days, H=20.0 ~339m) from ARO (June 17.20-22p4)
- Observations of small asteroids (H>22.0)
- K08L02H 2008 LH2 (arc=13 days, H=24.6 ~41m) from ARO (June 17.18-20p3)
- K08GB0A 2008 GA110 (Q=4.497 AU, arc=64 days, H=22.1 ~129m) from ARO (June 17.27-29p2)
- Observations of almost-small asteroids (21.7<H<=22.0)
- K07S06Q 2007 SQ6 (arc=2 opp, H=21.9 ~141m) from ARO (June 17.24-27p3)
- Observations of other objects
- K08L16Q 2008 LQ16 (arc=4 days, H=20.4 ~282m) from ARO (June 17.30-31p5) and Great Shefford Obs. (June 18.00-01p3)
- K08K02W 2008 KW2 (i=37.4°, arc=20 days, H=19.7 ~389m) from ARO (June 17.18-19p5)
- K08K02V 2008 KV2 (arc=20 days, H=21.4 ~178m) from ARO (June 17.16-17p4)
- K08J35T 2008 JT35 (Q=4.083 AU, arc=43 days, H=21.0 ~214m) from ARO (June 17.23-24p5) and Petit Jean Mtn. South Obs. (PJMSO) (June 17.32-33p7)
- K08J26R 2008 JR26 (arc=35 days, H=19.9 ~355m) from ARO (June 17.25-26p4)
- K08J14Q 2008 JQ14 (arc=43 days, H=19.3 ~467m) from ARO (June 17.14-15p3)
- K08J14P 2008 JP14 (arc=47 days, H=19.4 ~446m) from ARO (June 17.10-11p3)
- K08J07Z 2008 JZ7 (Q=4.377 AU, arc=43 days, H=18.6 ~645m) from ARO (June 17.12-13p3)
- K08H66E 2008 HE66 (arc=48 days, H=21.7 ~155m) from ARO (June 17.21-22p3)
- K07L00L 2007 LL (arc=2 opp, H=20.4 ~282m) from PJMSO (June 17.35-36p6)
- K05T45U 2005 TU45 (arc=3 opp, H=17.1 ~1.29 km) from PJMSO (June 17.34-35p5)
- K05N07B 2005 NB7 (arc=3 opp, H=18.7 ~616m) from PJMSO (June 17.31-32p5)
- K05A19N 2005 AN19 (i=39.8°, arc=3 opp, H=18.0 ~851m) from ARO (June 17.28p3)
- K04V60T 2004 VT60 (i=43.5°, arc=3 opp, H=17.6 ~1.02 km) from Tiki Obs. (2007 May 13.63-64p3)
- K00U16T 2000 UT16 (arc=4 opp, H=16.6 ~1.62 km) from ARO (June 17.22-23p4)
- K00R77L 2000 RL77 (arc=5 opp, H=16.8 ~1.48 km) from ARO (June 17.33-35p3)
- K00AK5D 2000 AD205 (arc=2 opp, H=18.6 ~645m) from Balzaretto Obs. (June 16.85-88p4) and PJMSO (June 17.30-31p5)
- F4278 154278 2002 TB9 from PJMSO (June 17.37p5)
- D7170 137170 1999 HF1 from El Guijo Obs. (June 17.87p2)
- 85818 85818 1998 XM4 from El Guijo Obs. (June 17.90p1 & 17.96-00p2)
- 54789 54789 2001 MZ7 from PJMSO (June 17.39-40p5)
- 35107 35107 1991 VH from PJMSO (June 17.33-34p5) and Atlante Obs. (June 17.90-91p3)
- 11398 11398 1998 YP11 from PJMSO (June 17.37-38p5)
- 07889 7889 1994 LX from Kiev Comet Station (June 9.90-91p4), PJMSO (June 17.36p5), and Atlante Obs. (June 17.95-96p3)
Observers on 18 June '08
Nine observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| H55 | Astronomical Research Obs. (ARO) in Illinois, 21 in MPEC 2008-M12 -- 2008 LW8, 2008 LW16, 2008 LQ16, 2008 LH2, 2008 LG2, 2008 LA, 2008 KZ5, 2008 KW2, 2008 KV2, 2008 KN11, 2008 JZ7, 2008 JT35, 2008 JR26, 2008 JQ14, 2008 JP14, 2008 HE66, 2008 GA110, 2007 SQ6, 2005 AN19, 2000 UT16, 2000 RL77 |
| J51 | Atlante Obs. in the Canary Islands, 2 in MPEC 2008-M12 -- 35107, 7889 |
| A81 | Balzaretto Obs. in Italy, 1 in MPEC 2008-M12 -- 2000 AD205 |
| J27 | El Guijo Obs. in Spain, 2 in MPEC 2008-M12 -- 85818, 137170 |
| J95 | Great Shefford Obs. in England, 2 in MPEC 2008-M12 -- 2008 LQ16, 2008 KN11 |
| 585 | Kiev Comet Station in the Ukraine, 1 in MPEC 2008-M12 -- 7889 |
| H45 | Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 10 in MPEC 2008-M12 -- 2008 JT35, 2007 LL, 2005 TU45, 2005 NB7, 2000 AD205, 54789, 35107, 154278, 11398, 7889 |
| 2492 | LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 5 in MPEC 2008-M13 -- C/2008 K5, C/2008 K4, C/2008 K3, C/2008 K2, C/2008 K1 |
| 2493 | LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. in Earth-Sun L1 HALO orbit, 1 in MPEC 2008-M13 -- C/2008 K4 |
| F85 | Tiki Obs. in Tahiti, 1 in MPEC 2008-M12 -- 2004 VT60 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 18 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 | NEODyS | 1335 | 2043-2087 | 7 | 7.24e-07 | -3.48 | -3.81 | 0 | NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2008/06/15.382 to 2008/06/17.322." |
| JPL Sentry | 1334 | 2026-2107 | 25 | 8.7e-07 | -3.40 | -3.74 | 0 | JPL: "Analysis based on 19 observations spanning 1.9395 days (2008-Jun-15.38141 to 2008-Jun-17.320951)." Diameter approximately 0.410 km. from mean, weighted H=19.6. | |
| 2008 LG2 | NEODyS | 1335 | 2041-2088 | 16 | 3.57e-06 | -5.93 | -6.32 | 0 | NEODyS: "Based on 98 optical observations (of which 0 are rejected as outliers) from 2008/06/03.318 to 2008/06/17.131." |
| JPL Sentry | 1334 | 2038-2103 | 15 | 4.7e-06 | -5.82 | -6.32 | 0 | JPL: "Analysis based on 98 observations spanning 13.813 days (2008-Jun-03.31737 to 2008-Jun-17.130616)." Diameter approximately 0.030 km. from mean, weighted H=25.3. | |
| 2008 LA | NEODyS | 1335 | 2058-2079 | 6 | 2.94e-05 | -3.74 | -3.77 | 0 | NEODyS: "Based on 58 optical observations (of which 0 are rejected as outliers) from 2008/06/01.170 to 2008/06/17.147." |
| JPL Sentry | 1334 | 2058-2107 | 8 | 3.1e-05 | -3.72 | -3.76 | 0 | JPL: "Analysis based on 58 observations spanning 15.977 days (2008-Jun-01.16922 to 2008-Jun-17.146382)." Diameter approximately 0.076 km. from mean, weighted H=23.2. | |
| 2008 KN11 | NEODyS | 1335 | 2046 | 1 | 1.33e-07 | -5.85 | -5.85 | 0 | NEODyS: "Based on 110 optical observations (of which 0 are rejected as outliers) from 2008/05/30.335 to 2008/06/17.971." |
| JPL Sentry | 1334 | 2046 | 1 | 1.9e-07 | -5.69 | -5.69 | 0 | JPL: "Analysis based on 110 observations spanning 18.636 days (2008-May-30.33435 to 2008-Jun-17.97046)." 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 18 June '08
Times are UTC for when items were noted or added by The Tracking News.
| 2357 | Grabbed MPEC 2008-M13 - Comets C/2008 K1, 2008 K2, 2008 K3, 2008 K4, 2008 K5 (SOHO) - see above |
| 1335 | Noted that NEODyS has updated its 2008 KN11 risk assessment - see above Noted that NEODyS has updated its 2008 LA risk assessment - see above Noted that NEODyS has updated its 2008 LG2 risk assessment - see above Noted that NEODyS has updated its 2008 LW16 risk assessment - see above |
| 1334 | Noted that JPL Sentry has updated its 2008 KN11 risk assessment - see above Noted that JPL Sentry has updated its 2008 LA risk assessment - see above Noted that JPL Sentry has updated its 2008 LG2 risk assessment - see above Noted that JPL Sentry has updated its 2008 LW16 risk assessment - see above Grabbed MPEC 2008-M12 - Daily Orbit Update - see above |
| 0443 | The NEOCP has become empty |
Publisher information, privacy statement, and disclaimer.
This page is © Copyright 2008 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).