Contents on 12 July '12
- Traffic Report -- one object
- IAU Minor Planet Center
- Observers -- nine observers
- Impact Risk Monitoring -- two objects
Note: The A/CC news pages may be slow or late to update on July 13th.
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page (archive)
Of 444 risk-listed objects, 58 have had news in the last 31 days. Updated at 1453 UTC on 12 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 27 June
- 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 12 July '12
One object reported inside ten LD
One visitor is reported moving within ten lunar distances (LD) of Earth today. Radar target 2012 MY2 departs from inside ten LD, traveling from 9.93 to 10.73 LD. Nothing else is known to come this close again until November.
This report was generated at 1455 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 12 July '12
The MPC's NEO Confirmation Page has 1 listing
When last checked at 2302 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had one object listed. This was a "one nighter." So far The Tracking News has counted a total of two 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 12 July '12
Minor Planet Electronic Circulars
As of last check at 2302 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2012-N15 time-stamped "06:01 UT" - Daily Orbit Update - see below
- MPEC 2012-N16 time-stamped "15:59 UT" - 2009 KK8
MPEC 2012-N16 - "15:59 UT" - 2009 KK8
- K09K08K 2009 KK8 (Earth MOID=3.9 LD, i=2.3°, H=18.7 ~616m) from David Tholen's team on Mauna Kea (March 13.53-54p2 at R=22.5 & 18.51-54p2 at R=22.9)
- Observations of recently (no longer) risk-listed objects
- K12M07A 2012 MA7 (Q=5.087 AU, arc=19 days, H=20.5 ~269m) from Astronomical Research Obs. Westfield (July 11.16-17p2)
- Observation campaigns (radar support, potential mission destinations)
- K12L01Z 2012 LZ1 (Q=4.080 AU, arc=31 days, H=19.9 ~355m, radar) from ARO Westfield (July 5.29-31p5 & 11.28-29p3)
- W9437 329437 2002 OA22 (PMD) from Santa Mama Obs. (July 11.89-91p5)
- U8242 308242 2005 GO21 (radar) from Santa Mama Obs. (July 11.85p2)
- F3958 153958 2002 AM31 (radar) from Posadas Obs. (July 11.01-02p5)
-- Potential mission destinations list & ephemerides + NHATS -- Planetary radar schedules: Arecibo & Goldstone
- Observations of small asteroids (H>22.0)
- K12M07B 2012 MB7 (arc=19 days, H=22.2 ~123m) from ARO Westfield (July 11.18-20p2)
- K12M03Q 2012 MQ3 (arc=21 days, H=22.2 ~123m) from Sandlot Obs. (July 11.34-36p3) and ARO Westfield (July 11.36-37p2)
- Observations of other asteroidal objects
- K12M11M 2012 MM11 (arc=18 days, H=20.2 ~309m) from ARO Westfield (July 11.26-27p9 & 11.37-38p5), Walnut Creek Obs. (July 11.27-28p4), and South Obs. (July 11.91-94p5)
- K12M07R 2012 MR7 (arc=18 days, H=18.9 ~562m) from ARO Westfield (July 11.22-23p4)
- K12M06Z 2012 MZ6 (arc=21 days, H=21.5 ~170m) from Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (July 12.17-18p5)
- K12M06L 2012 ML6 (arc=20 days, H=20.2 ~309m) from ARO Westfield (July 11.30p2)
- K12M06K 2012 MK6 (Q=4.051 AU, arc=22 days, H=19.0 ~537m) from ARO Westfield (July 11.31-32p4)
- K12M04S 2012 MS4 (i=67.8°, arc=22 days, H=18.6 ~645m) from ARO Westfield (July 11.21-23p3)
- K12M03O 2012 MO3 (arc=24 days, H=20.6 ~257m) from ARO Westfield (July 11.30-32p3)
- K12M02N 2012 MN2 (arc=25 days, H=20.5 ~269m) from Sandlot Obs. (July 11.31-32p2) and ARO Westfield (July 11.33p2)
- K12M00P 2012 MP (arc=25 days, H=21.0 ~214m) from ARO Westfield (July 11.24-25p4)
- K12L11F 2012 LF11 (arc=27 days, H=20.8 ~234m) from ARO Westfield (July 11.25-26p3)
- K12L11E 2012 LE11 (Q=4.485 AU, arc=27 days, H=17.9 ~891m) from ARO Westfield (July 11.35-36p4)
- K12L07U 2012 LU7 (arc=29 days, H=18.9 ~562m) from ARO Westfield (July 5.24-26p6 & 11.27-29p6) and Santa Mama Obs. (July 11.93-95p5)
- K12H31G 2012 HG31 (arc=87 days, H=18.9 ~562m) from Santa Mama Obs. (July 11.91-93p5)
- K12F23Y 2012 FY23 (arc=111 days, H=20.0 ~339m) from ARO Westfield (July 11.33-35p3)
- K12D04H 2012 DH4 (arc=38 days, H=20.7 ~245m) from program code "}" (33) via Cerro Tololo Inter-American Obs. (CTIO) (March 10.23-24p10)
- K12D00O 2012 DO (arc=113 days, H=20.3 ~295m) from CTIO/code "}" (33) (March 8.14p3, 8.22-25p2, 10.10p5 & 10.17-18p3)
- X2408 332408 2007 MM13 from ARO Westfield (July 5.27-29p5)
- X1471 331471 1984 QY1 from Santa Mama Obs. (July 11.83-84p5)
- W6732 326732 2003 HB6 from Posadas Obs. (July 10.98-99p4) and Santa Mama Obs. (July 11.88-89p5)
- E1056 141056 2001 XV4 from Santa Mama Obs. (July 11.86-88p5)
- 16960 16960 1998 QS52 from LINEAR (July 11.28-32p5)
Observers on 12 July '12
Nine observers appear in today's MPECs.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 17 in MPEC 2012-N15 -- 2012 MS4, 2012 MR7, 2012 MQ3, 2012 MP, 2012 MO3, 2012 MN2, 2012 MM11, 2012 ML6, 2012 MK6, 2012 MB7, 2012 MA7, 2012 LZ1, 2012 LU7, 2012 LF11, 2012 LE11, 2012 FY23, 332408|
|807|||Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2012-N15 -- 2012 MZ6|
|807}||program code "}" (33) via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPEC 2012-N15 -- 2012 DO, 2012 DH4|
|704||LINEAR in New Mexico, 1 in MPEC 2012-N15 -- 16960|
|5682||David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2012-N16 -- 2009 KK8|
|J53||Posadas Obs. in Spain, 2 in MPEC 2012-N15 -- 326732, 153958|
|H36||Sandlot Obs. in Kansas, 2 in MPEC 2012-N15 -- 2012 MQ3, 2012 MN2|
|B38||Santa Mama Obs. in Italy, 7 in MPEC 2012-N15 -- 2012 LU7, 2012 HG31, 331471, 329437, 326732, 308242, 141056|
|J84||South Obs. in England, 1 in MPEC 2012-N15 -- 2012 MM11|
|G56||Walnut Creek Obs. in northern California, 1 in MPEC 2012-N15 -- 2012 MM11|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 12 July '12
Notes for Today's Latest Risk Assessments
|2010 JC170||NEODyS||1453||R E M O V E D||-|
|2009 MH1||NEODyS||1453||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 12 July '12
Times are UTC for when items were noted or added by The Tracking News.
|1604||Grabbed MPEC 2012-N16 - 2009 KK8 - see above|
Noted that the NEOCP has become active
|1455||Generated Traffic Report|
|1453||Noted that NEODyS has removed 2009 MH1 as an impact risk - see above|
Noted that NEODyS has removed 2010 JC170 as an impact risk - see above
Grabbed MPEC 2012-N15 - Daily Orbit Update - see above
Noted that the NEOCP has become empty
|0503||Noted that the NEOCP has become active|