Contents on 2 July '13
- Traffic Report -- no objects
- IAU Minor Planet Center
- Observers -- fifteen observers
- Impact Risk Monitoring -- one object
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 1428 UTC on 2 July.
- 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 2 July '13
No objects reported inside ten LD
No asteroids are reported traveling within ten lunar distances (LD) of our planet today, and none are predicted to be coming that close until later this month.
This report was generated at 1431 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 2 July '13
The MPC's NEO Confirmation Page has 21 listings
When last checked at 1915 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 21 objects listed. Of these, twelve were "one nighters." So far The Tracking News has counted a total of 33 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 2 July '13
Minor Planet Electronic Circulars
As of last check at 1905 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of risk-listed objects
- K13M03L 2013 ML3 (small asteroid, arc=12 days, H=22.2 ~123m) from Sandlot Obs. (July 1.26-27p3)
- Observation campaigns (radar support, potential mission destinations)
- T3726 293726 2007 RQ17 (PMD) from the Siding Spring Survey (SSS) (May 29.53-56p3)
- S5263 285263 1998 QE2 (radar) from Urseanu Obs. (June 24.84-87p6 & 28.84-88p7), Olmen Obs. (June 29.97-00p8, 30.88-89p5 & 30.94p5), Danastro Obs. (June 30.91-95p5), Sandlot Obs. (July 1.28-29p3), and Petit Jean Mtn. South Obs. (PJMSO) (July 1.34-35p6)
- G3249 163249 2002 GT (PMD) from Kiev Comet Station (June 25.98-01p29) and Saint-Barthelemy Obs. (July 1.87-89p5)
- 68278 68278 2001 FC7 (PMD) from Pan-STARRS 1 (PS1) (July 1.27-28p3)
- 07753 7753 1988 XB (PMD) from SSS (June 8.68-69p2)
-- Potential mission destinations list & ephemerides + NHATS -- Planetary radar schedules: Arecibo & Goldstone
- Observations of small asteroids (H>22.0)
- K02L24T 2002 LT24 (q=0.363 AU, arc=3 opp, H=22.1 ~129m) from Balzaretto Obs. (June 30.86p3) and Mirasteilas Obs. (July 1.91-92p4)
- Observations of other asteroidal objects
- K13M00R 2013 MR (arc=14 days, H=21.7 ~155m) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (June 30.22-23p3 & July 1.22-23p3)
- K13L31N 2013 LN31 (Q=4.122 AU, arc=16 days, H=20.0 ~339m) from Olmen Obs. (June 30.92p2)
- K13L31K 2013 LK31 (arc=18 days, H=19.2 ~490m) from Nonndorf Obs. (July 1.92-93p3)
- K13L28V 2013 LV28 (arc=21 days, H=18.6 ~645m) from Sandlot Obs. (July 1.30-32p3)
- K12X06Y 2012 XY6 (arc=193 days, H=19.1 ~513m) from SSS (May 31.40-43p2)
- K12V06J 2012 VJ6 (Q=4.401 AU, arc=2 opp, H=18.8 ~589m) from SSS (May 31.40-43p2)
- K11H04S 2011 HS4 (q=0.300 AU, arc=4 opp, H=20.9 ~224m) from PS1 (July 1.32-36p4)
- K07X09Y 2007 XY9 (arc=3 opp, H=21.0 ~214m) from Frasso Sabino Obs. (June 30.91-92p3)
- S1365 281365 2008 CM116 from SSS (June 16.46p1)
- L5188 215188 2000 NM from SSS (June 16.47-50p2)
- G3364 163364 2002 OD20 from SSS (May 31.54-56p4, June 3.61-64p4 & 8.67-69p4)
- 88263 88263 2001 KQ1 from SSS (May 31.41-43p2)
- 66400 66400 1999 LT7 from PS1 (July 1.27-28p4)
- 52762 52762 1998 MT24 from SSS (June 17.71-74p4)
- 07977 7977 1977 QQ5 from the Palomar Transient Factory (PTF) (June 29.19-23p2 & 30.18-22p2)
- 04957 4957 Brucemurray (1990 XJ) from SSS (June 18.38p1)
- 04015 4015 Wilson-Harrington (1979 VA) from SSS (May 31.58p1)
- 03199 3199 Nefertiti (1982 RA) from SSS (June 18.39p1)
- 02063 2063 Bacchus (1977 HB) from SSS (June 21.56-60p4)
- 00719 719 Albert (1911 MT) from PS1 (July 1.27-28p3)
Observers on 2 July '13
Fifteen observers appear in today's MPEC.
|Code||Observer / observatory|
|A81||Balzaretto Obs. in Italy, 1 in MPEC 2013-N02 -- 2002 LT24|
|807|||Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2013-N02 -- 2013 MR|
|K20||Danastro Obs., 1 in MPEC 2013-N02 -- 285263|
|157||Frasso Sabino Obs. in Italy, 1 in MPEC 2013-N02 -- 2007 XY9|
|585||Kiev Comet Station in the Ukraine, 1 in MPEC 2013-N02 -- 163249|
|B67||Mirasteilas Obs. in Switzerland, 1 in MPEC 2013-N02 -- 2002 LT24|
|C47||Nonndorf Obs. in Austria, 1 in MPEC 2013-N02 -- 2013 LK31|
|C23||Olmen Obs. in Belgium, 2 in MPEC 2013-N02 -- 2013 LN31, 285263|
|I41||Palomar Transient Factory in southern California, 1 in MPEC 2013-N02 -- 7977|
|F51||Pan-STARRS 1 (PS1) in Hawaii, 4 in MPEC 2013-N02 -- 2011 HS4, 68278, 66400, 719|
|H45||Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2013-N02 -- 285263|
|B04||Saint-Barthelemy Obs. in Italy, 1 in MPEC 2013-N02 -- 163249|
|H36||Sandlot Obs. in Kansas, 3 in MPEC 2013-N02 -- 2013 ML3, 2013 LV28, 285263|
|E12||Siding Spring Survey (SSS) in New South Wales, 13 in MPEC 2013-N02 -- 2012 XY6, 2012 VJ6, 88263, 52762, 293726, 281365, 215188, 163364, 7753, 4957, 4015, 3199, 2063|
|A92||Urseanu Obs. in Romania, 1 in MPEC 2013-N02 -- 285263|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 2 July '13
Notes for Today's Latest Risk Assessments
|2013 ML3||JPL Sentry||1427||2109||4||2.6e-06||-4.61||-4.97||0||JPL: "Analysis based on 112 observations spanning 12.000 days (2013-Jun-19.27039 to 2013-Jul-01.27024)." Diameter approximately 0.120 km. from mean, weighted H=22.2.|
|NEODyS||1427||2085-2109||5||9.99e-06||-4.03||-4.12||0||NEODyS: "Based on 114 optical observations (of which 6 are rejected as outliers) from 2013-06-19.271 to 2013-07-01.271."|
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 2 July '13
Times are UTC for when items were noted or added by The Tracking News.
|1431||Generated Traffic Report|
|1427||Noted that JPL Sentry has updated its 2013 ML3 risk assessment - see above|
Noted that NEODyS has updated its 2013 ML3 risk assessment - see above
Grabbed MPEC 2013-N02 - Daily Orbit Update - see above