Contents  on 22 August '13

Asteroid/Comet Connection (A/CC) Resources:

The latest A/CC news is available via framed access, RSS news feed 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.

Traffic Report  on 22 August '13

No objects reported inside ten LD

No objects are reported within ten lunar distances (LD) of Earth today. Next up, radar target 2013 QR1 will be inside ten LD during August 25-26.

This report was generated at 1434 UTC with follow-up in today's DOU MPEC for 2013 QR1 and departed 2013 PR43.

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 22 August '13

The MPC's NEO Confirmation Page has 17 listings

When last checked at 2347 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had seventeen objects listed. Of these, one was a "one nighter." The Tracking News counted a total of 20 listings on the NEOCP on this day.

New MPECs  on 22 August '13

Minor Planet Electronic Circulars

As of last check at 2347 UTC, there were two MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2013-Q24 - "23:02 UT" - 2013 QW1

<< DOU on 22 Aug. '13 >>  MPEC 2013-Q23 - "06:02 UT" - Daily Orbit Update

Observers  on 22 August '13

Sixteen observers appeared in this day's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 6 in MPEC 2013-Q23 -- 2013 PW6, 340666, 294739, 162269, 11405, 105140
C77Bernezzo Obs. in Italy, 1 in MPEC 2013-Q23 -- 2013 QR1
B88Bigmuskie Obs. in Italy, 2 in MPEC 2013-Q23 -- 2013 PX6, 4450
143Gnosca Obs. in Switzerland, 1 in MPEC 2013-Q23 -- 2013 QR1
J95Great Shefford Obs. in England, 1 in MPEC 2013-Q24 -- 2013 QW1
V37LCOGT Fort Davis in Texas, 1 in MPEC 2013-Q23 -- 2013 QR1
560Madonna di Dossobuono Obs. in Italy, 4 in MPEC 2013-Q23 -- 2013 QR1, 2013 OM9, 2013 BO76, 2009 WE253
118Modra Obs. in Slovakia, 1 in MPEC 2013-Q24 -- 2013 QW1
0892Oleksandr V. Shulga via Nikolaev Obs. in the Ukraine, 14 in MPEC 2013-Q23 -- 2013 QR1, 2013 PX6, 2013 PR43, 2013 BO76, 2010 TN54, 2009 CP5, 2006 EE1, 361071, 329437, 243147, 153349, 140039, 4450, 1627
C23Olmen Obs. in Belgium, 1 in MPEC 2013-Q23 -- 137126
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2013-Q24 -- 2013 QW1
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2013-Q23 -- 2013 PX6, 2010 TN54, 4450
C95SATINO-1 in France, 1 in MPEC 2013-Q23 -- 2013 PV6
H36Sandlot Obs. in Kansas, 1 in MPEC 2013-Q23 -- 2013 QR1
260&Rob Matson in southern California using the Siding Spring Digitized Sky Survey in New South Wales, 1 in MPEC 2013-Q23 -- 2013 ON5
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2013-Q23 -- 2013 QR1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 22 August '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2356 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON2 risk pages.





Notes for Today's Latest Risk Assessments
2005 GV190JPL Sentry1432209915.6e-10-6.19-6.190JPL: "Analysis based on 7 observations spanning 10.948 days (2005-Apr-02.26843 to 2005-Apr-13.21632)." Diameter approximately 0.870 km. from mean, weighted H=18.0.

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 22 August '13

Times are UTC for when items were noted or added by The Tracking News.

2318Grabbed MPEC 2013-Q24 - 2013 QW1 - see above
1434Generated Traffic Report
1432Noted that JPL Sentry has posted 2005 GV190 as an impact risk - see above
Grabbed MPEC 2013-Q23 - Daily Orbit Update - see above