Contents on 1 July '13
- Traffic Report -- no objects
- IAU Minor Planet Center
- Observers -- sixteen 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 1323 UTC on 1 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 1 July '13
No objects reported inside ten LD
There are no objects reported moving inside ten lunar distances (LD) of Earth today, and none are known to be coming in until late this month.
This report was generated at 1326 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 1 July '13
The MPC's NEO Confirmation Page has 24 listings
When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 24 objects listed. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 25 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 1 July '13
Minor Planet Electronic Circulars
As of last check at 2359 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 Schiaparelli Obs. (June 30.04-06p3) and Estrella de Mar Obs. (June 30.98-00p2)
- K13L28Z 2013 LZ28 (small asteroid, arc=17 days, H=22.8 ~93m) from David Tholen's team on Mauna Kea (June 29.37-38p3) and the Spacewatch 1.8m telescope (June 30.26-27p3)
- Observations of recently (no longer) risk-listed objects
- K13L16H 2013 LH16 (Q=5.308 AU, arc=23 days, H=18.8 ~589m) from Spacewatch 1.8m (June 30.28p3)
- Observation campaigns (radar support, potential mission destinations)
- S5263 285263 1998 QE2 (radar) from Pan-STARRS 1 (PS1) (June 29.53-55p3) and Montevenere Obs. (June 29.92-93p4)
- G3249 163249 2002 GT (PMD) from Kiev Comet Station (June 25.02p2 & 25.93-97p39), SATINO-1 (June 28.88p3), and El Maestrat Obs. (June 30.11-13p9)
-- 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 SATINO-1 (June 28.89-90p4) and Petit Jean Mtn. South Obs. (PJMSO) (June 30.25-26p10)
- Observations of other asteroidal objects
- K13M07H 2013 MH7 from Galati Obs. (June 29.82-83p8)
- K13M06R 2013 MR6 (i=36.2°, Q=4.165 AU, arc=11 days, H=18.8 ~589m) from Schiaparelli Obs. (June 29.98-99p2)
- K13M06D 2013 MD6 (arc=11 days, H=21.7 ~155m) from Spacewatch 1.8m (June 30.24-25p3) and PS1 (June 30.33-36p3)
- K13M05Z 2013 MZ5 (arc=12 days, H=20.2 ~309m) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (June 30.12-13p3)
- K13L31N 2013 LN31 (Q=4.109 AU, arc=15 days, H=20.1 ~323m) from Verona Obs. (June 29.88p4)
- K13L31K 2013 LK31 (arc=17 days, H=19.2 ~490m) from Estrella de Mar Obs. (June 30.90-93p2) and GiaGa Obs. (June 30.99-02p2)
- K13L28X 2013 LX28 (i=50.0°, arc=17 days, H=21.7 ~155m) from Tholen team/Mauna Kea (June 29.34-35p3 at R=22.3-5)
- K13L28V 2013 LV28 (arc=20 days, H=18.6 ~645m) from PS1 (June 30.52-55p7)
- K13L07K 2013 LK7 (arc=24 days, H=20.5 ~269m) from Spacewatch 1.8m (June 30.25-26p3)
- K13J22Q 2013 JQ22 (arc=51 days, H=20.2 ~309m) from Spacewatch 1.8m (June 30.29-30p2)
- K07X09Y 2007 XY9 (arc=3 opp, H=21.0 ~214m) from SATINO-1 (June 28.90-92p4) and Schiaparelli Obs. (June 30.01-03p3)
- F9609 159609 2002 AQ3 from PS1 (June 29.53-57p4)
- F5341 155341 2006 SA218 from Naef Obs. (June 30.93-96p3)
- D7199 137199 1999 KX4 from SATINO-1 (June 28.90-91p3)
- 17188 17188 1999 WC2 from Chinon Obs. (June 29.92-05p15) and GiaGa Obs. (June 30.97-01p2)
- 09950 9950 ESA (1990 VB) from Galati Obs. (June 29.96-97p12)
Observers on 1 July '13
Sixteen observers appear in today's MPEC.
|Code||Observer / observatory|
|807|||Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2013-N01 -- 2013 MZ5|
|B92||Chinon Obs. in France, 1 in MPEC 2013-N01 -- 17188|
|J19||El Maestrat Obs. in Spain, 1 in MPEC 2013-N01 -- 163249|
|Z81||Estrella de Mar Obs., 2 in MPEC 2013-N01 -- 2013 ML3, 2013 LK31|
|C73||Galati Obs. in Romania, 2 in MPEC 2013-N01 -- 2013 MH7, 9950|
|203||GiaGa Obs. in Italy, 2 in MPEC 2013-N01 -- 2013 LK31, 17188|
|585||Kiev Comet Station in the Ukraine, 1 in MPEC 2013-N01 -- 163249|
|5682||David Tholen's team on Mauna Kea in Hawaii, 2 in MPEC 2013-N01 -- 2013 LZ28, 2013 LX28|
|C91||Montevenere Obs., 1 in MPEC 2013-N01 -- 285263|
|A13||Naef Obs. in Switzerland, 1 in MPEC 2013-N01 -- 155341|
|F51||Pan-STARRS 1 (PS1) in Hawaii, 4 in MPEC 2013-N01 -- 2013 MD6, 2013 LV28, 285263, 159609|
|H45||Petit Jean Mtn. South Obs. in Arkansas, 1 in MPEC 2013-N01 -- 2002 LT24|
|C95||SATINO-1 in France, 4 in MPEC 2013-N01 -- 2007 XY9, 2002 LT24, 163249, 137199|
|204||Schiaparelli Obs. in Italy, 3 in MPEC 2013-N01 -- 2013 MR6, 2013 ML3, 2007 XY9|
|291||Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2013-N01 -- 2013 MD6, 2013 LZ28, 2013 LK7, 2013 LH16, 2013 JQ22|
|A48||Verona Obs. in Italy, 1 in MPEC 2013-N01 -- 2013 LN31|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 1 July '13
Notes for Today's Latest Risk Assessments
|2013 ML3||JPL Sentry||1323||2109||4||2.5e-06||-4.64||-5.00||0||JPL: "Analysis based on 109 observations spanning 11.733 days (2013-Jun-19.27039 to 2013-Jul-01.002983)." Diameter approximately 0.120 km. from mean, weighted H=22.2.|
|NEODyS||1323||2103-2109||5||9.07e-06||-4.07||-4.23||0||NEODyS: "Based on 111 optical observations (of which 6 are rejected as outliers) from 2013-06-19.271 to 2013-07-01.004."|
|2013 LZ28||NEODyS||1323||R E M O V E D||-|
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 1 July '13
Times are UTC for when items were noted or added by The Tracking News.
|1326||Generated Traffic Report|
|1323||Noted that NEODyS has removed 2013 LZ28 as an impact risk - see above|
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-N01 - Daily Orbit Update - see above