Contents on 28 June '13
- Traffic Report -- no objects
- IAU Minor Planet Center
- Observers -- ten observers
- Impact Risk Monitoring -- two objects
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page (archive)
Of 504 risk-listed objects, 16 have had news in the last 31 days. Updated at 1736 UTC on 28 June.
- Ephemerides for risk-rated & nearby objects + potential mission destinations
- News image catalog
- News old archive & Small Objects Archive
- Object Links - mainly for radar targets & close passers - updated 20 Feb.
- Observing Campaigns
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.
Traffic Report on 28 June '13
No objects reported inside ten LD
No asteroids are reported to be within ten lunar distances (LD) of our home world today, and none are known to be coming in until late July.
This report was generated at 1421 UTC.
Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Object distances are interpreted by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.
NEOCP Activity on 28 June '13
The MPC's NEO Confirmation Page has 7 listings
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had seven objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of fourteen listings on the NEOCP 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 28 June '13
Minor Planet Electronic Circulars
As of last check at 2359 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2013-M45 time-stamped "06:01 UT" - Daily Orbit Update - see below
- MPEC 2013-M46 time-stamped "23:18 UT" - 2010 NY65
MPEC 2013-M46 - "23:18 UT" - 2010 NY65
- K10N65Y 2010 NY65 (Earth MOID=6.7 LD, H=21.4 ~178m) from Pan-STARRS 1 (PS1) (June 27.27-29p4), the Spacewatch 1.8m telescope (June 28.17p3), and LCOGT Sutherland A (June 28.77-78p4)
- Observations of risk-listed objects
- K13M03L 2013 ML3 (small asteroid, arc=8 days, H=22.1 ~129m) from Spacewatch 1.8m (June 27.41p3)
- K13L28Z 2013 LZ28 (small asteroid, arc=14 days, H=22.6 ~102m) from Spacewatch 1.8m (June 27.30-31p2)
- Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
- K05E70S 2005 ES70 (arc=4 opp, H=23.8 ~59m) from PS1 (March 6.61-62p2)
- K13M06D 2013 MD6 (arc=8 days, H=21.8 ~148m) from Spacewatch 1.8m (June 27.28p3)
- K13L16F 2013 LF16 (arc=20 days, H=21.9 ~141m) from Spacewatch 1.8m (June 27.35p2)
- Observations of other asteroidal objects
- K13M06Y 2013 MY6 (i=52.1°, arc=6 days, H=18.0 ~851m) from Spacewatch 1.8m (June 27.40p3)
- K13L31N 2013 LN31 (Q=4.075 AU, arc=13 days, H=20.0 ~339m) from Wiggins Obs. (June 27.34p3 & 28.20-21p3)
- K13L31M 2013 LM31 (arc=13 days, H=20.3 ~295m) from Santa Maria de Montmagastrell Obs. (June 27.93-94p3)
- K13L31L 2013 LL31 (arc=12 days, H=20.1 ~323m) from Spacewatch 1.8m (June 27.32-34p3)
- K13L25H 2013 LH25 (Q=8.236 AU, arc=18 days, H=17.2 ~1.23 km) from Hidetaka Sato via iTelescope Obs. Mayhill (June 26.16p4)
- K13L07K 2013 LK7 (arc=21 days, H=20.5 ~269m) from Spacewatch 1.8m (June 27.26p3)
- K13K06F 2013 KF6 (arc=29 days, H=21.1 ~204m) from Spacewatch 1.8m (June 27.26-27p3)
- K13H20G 2013 HG20 (arc=59 days, H=20.7 ~245m) from Spacewatch 1.8m (June 28.18p2)
- K13E09U 2013 EU9 (arc=115 days, H=21.6 ~162m) from the Catalina Sky Survey (CSS) (June 27.25-27p4)
- K10TE9V 2010 TV149 (arc=4 opp, H=18.6 ~645m) from PS1 (June 27.28-29p3)
- K07C26N 2007 CN26 (arc=3 opp, H=20.8 ~234m) from Spacewatch 1.8m (June 27.23-25p3)
- K06H00B 2006 HB (arc=3 opp, H=18.8 ~589m) from Desert Moon Obs. (June 27.16-18p3) and CSS (June 27.19-21p4)
- J93F00S 1993 FS (arc=3 opp, H=19.6 ~407m) from the Mt. Lemmon Survey (MLS) (June 27.35-37p3)
- I9630 189630 2001 LE6 from the Spacewatch 0.9m telescope (June 27.40-44p3)
- 21088 21088 1992 BL2 from CSS (June 27.42-44p4)
- 05381 5381 Sekhmet (1991 JY) from PS1 (June 27.28-29p4)
Observers on 28 June '13
Ten observers appear in today's MPECs.
|Code||Observer / observatory|
|703||Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2013-M45 -- 2013 EU9, 2006 HB, 21088|
|448||Desert Moon Obs. in New Mexico, 1 in MPEC 2013-M45 -- 2006 HB|
|K91||LCOGT Sutherland A in South Africa, 1 in MPEC 2013-M46 -- 2010 NY65|
|G96||Mt. Lemmon Survey in Arizona, 1 in MPEC 2013-M45 -- 1993 FS|
|F51||Pan-STARRS 1 (PS1) in Hawaii, 4 in MPECs 2013-M45 & 2013-M46 -- 2010 TV149, 2010 NY65, 2005 ES70, 5381|
|B74||Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2013-M45 -- 2013 LM31|
|691||Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2013-M45 -- 189630|
|291||Spacewatch 1.8m telescope in Arizona, 11 in MPECs 2013-M45 & 2013-M46 -- 2013 MY6, 2013 ML3, 2013 MD6, 2013 LZ28, 2013 LL31, 2013 LK7, 2013 LF16, 2013 KF6, 2013 HG20, 2010 NY65, 2007 CN26|
|718||Wiggins Obs. in Utah, 1 in MPEC 2013-M45 -- 2013 LN31|
|H06|||Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-M45 -- 2013 LH25|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 28 June '13
Notes for Today's Latest Risk Assessments
|2013 ML3||NEODyS||1351||2076-2109||5||7.89e-06||-4.06||-4.14||0||NEODyS: "Based on 70 optical observations (of which 4 are rejected as outliers) from 2013-06-19.271 to 2013-06-27.407."|
|2013 LZ28||NEODyS||1420||2101-2101||1||3.56e-09||-7.35||-7.35||0||NEODyS: "Based on 66 optical observations (of which 3 are rejected as outliers) from 2013-06-13.254 to 2013-06-27.314."|
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 28 June '13
Times are UTC for when items were noted or added by The Tracking News.
|2359||Grabbed MPEC 2013-M46 - 2010 NY65 - see above|
|1421||Generated Traffic Report|
|1420||Noted that NEODyS has updated its 2013 LZ28 risk assessment - see above|
|1351||Noted that NEODyS has reposted 2013 LZ28 as an impact risk - see above|
Noted that NEODyS has updated its 2013 ML3 risk assessment - see above
Grabbed MPEC 2013-M45 - Daily Orbit Update - see above