Contents  on 5 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 5 August '13

No objects reported inside ten LD

No asteroids are reported flying inside ten lunar distances (LD) of our planet today. Coming toward Earth next, radar target 277475 2005 WK4 arrives inside ten LD tomorrow.

This report was generated at 1443 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 5 August '13

The MPC's NEO Confirmation Page has 20 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 20 objects listed. Of these, four were "one nighters." So far The Tracking News has counted a total of 44 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 5 August '13

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been eleven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts. No Daily Orbit Update DOU MPEC has been posted yet, so visit the MPC Status Page for possible explanation.


MPEC 2013-P34 - "19:45 UT" - 2013 PC7


MPEC 2013-P33 - "19:41 UT" - 2013 PB7


MPEC 2013-P32 - "19:36 UT" - 2013 PA7


MPEC 2013-P31 - "19:32 UT" - 2013 PZ6


MPEC 2013-P30 - "17:08 UT" - 2013 PY6


MPEC 2013-P29 - "17:01 UT" - 2013 PX6


MPEC 2013-P28 - "16:57 UT" - 2013 PW6


MPEC 2013-P27 - "16:52 UT" - 2013 PV6


MPEC 2013-P26 - "15:50 UT" - 2012 QG42


MPEC 2013-P25 - "15:45 UT" - 2012 CL19


MPEC 2013-P24 - "14:50 UT" - 2007 UB66

Observers  on 5 August '13

A total of 29 observers appear in today's MPECs.

CodeObserver / observatory
E23Arcadia Obs. in New South Wales, 2 in MPECs 2013-P30 & 2013-P34 -- 2013 PY6, 2013 PC7
H21Astronomical Research Obs. Westfield in Illinois, 7 in MPECs 2013-P24, 2013-P28, 2013-P29, 2013-P30, 2013-P32, 2013-P33 & 2013-P34 -- 2013 PY6, 2013 PX6, 2013 PW6, 2013 PC7, 2013 PB7, 2013 PA7, 2007 UB66
160Castelmartini Obs. in Italy, 1 in MPEC 2013-P27 -- 2013 PV6
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPECs 2013-P30, 2013-P32, 2013-P33 & 2013-P34 -- 2013 PY6, 2013 PC7, 2013 PB7, 2013 PA7
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2013-P34 -- 2013 PC7
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 6 in MPECs 2013-P25, 2013-P26, 2013-P27, 2013-P28, 2013-P29 & 2013-P30 -- 2013 PY6, 2013 PX6, 2013 PW6, 2013 PV6, 2012 QG42, 2012 CL19
G32Elena Remote Obs., 1 in MPEC 2013-P32 -- 2013 PA7
151Eschenberg Obs. in Switzerland, 1 in MPEC 2013-P27 -- 2013 PV6
595Farra d'Isonzo Obs. in Italy, 3 in MPECs 2013-P27, 2013-P28 & 2013-P29 -- 2013 PX6, 2013 PW6, 2013 PV6
J95Great Shefford Obs. in England, 2 in MPECs 2013-P28 & 2013-P29 -- 2013 PX6, 2013 PW6
W85LCOGT Cerro Tololo A in Chile, 1 in MPEC 2013-P32 -- 2013 PA7
V37LCOGT Fort Davis in Texas, 2 in MPECs 2013-P27 & 2013-P29 -- 2013 PX6, 2013 PV6
K91LCOGT Sutherland A in South Africa, 2 in MPECs 2013-P30 & 2013-P33 -- 2013 PY6, 2013 PB7
J75La Sagra Obs. in Spain, 1 in MPEC 2013-P29 -- 2013 PX6
G38La Senda Obs., 1 in MPEC 2013-P27 -- 2013 PV6
568_Marco Micheli on Mauna Kea in Hawaii, 2 in MPECs 2013-P30 & 2013-P31 -- 2013 PZ6, 2013 PY6
932McCarthy Obs. in Connecticut, 2 in MPECs 2013-P27 & 2013-P29 -- 2013 PX6, 2013 PV6
A13Naef Obs. in Switzerland, 1 in MPEC 2013-P28 -- 2013 PW6
C47Nonndorf Obs. in Austria, 2 in MPECs 2013-P27 & 2013-P29 -- 2013 PX6, 2013 PV6
I41Palomar Transient Factory in southern California, 1 in MPEC 2013-P27 -- 2013 PV6
F51Pan-STARRS 1 (PS1) in Hawaii, 8 in MPECs 2013-P24, 2013-P25, 2013-P28, 2013-P30, 2013-P31, 2013-P32, 2013-P33 & 2013-P34 -- 2013 PZ6, 2013 PY6, 2013 PW6, 2013 PC7, 2013 PB7, 2013 PA7, 2012 CL19, 2007 UB66
Y00SONEAR Obs. in Brazil, 3 in MPECs 2013-P27, 2013-P29 & 2013-P34 -- 2013 PX6, 2013 PV6, 2013 PC7
461SZTE Asteroid Program in Hungary, 3 in MPECs 2013-P24, 2013-P27 & 2013-P30 -- 2013 PY6, 2013 PV6, 2007 UB66
B04Saint-Barthelemy Obs. in Italy, 3 in MPECs 2013-P27, 2013-P29 & 2013-P34 -- 2013 PX6, 2013 PV6, 2013 PC7
104San Marcello Pistoiese Obs. in Italy, 5 in MPECs 2013-P24, 2013-P28, 2013-P29, 2013-P33 & 2013-P34 -- 2013 PX6, 2013 PW6, 2013 PC7, 2013 PB7, 2007 UB66
204Schiaparelli Obs. in Italy, 5 in MPECs 2013-P27, 2013-P28, 2013-P29, 2013-P33 & 2013-P34 -- 2013 PX6, 2013 PW6, 2013 PV6, 2013 PC7, 2013 PB7
291Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2013-P27, 2013-P28 & 2013-P29 -- 2013 PX6, 2013 PW6, 2013 PV6
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2013-P27 -- 2013 PV6
A79Zvezdno Obshtestvo Obs. in Bulgaria, 3 in MPECs 2013-P27, 2013-P29 & 2013-P34 -- 2013 PX6, 2013 PV6, 2013 PC7
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 August '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2359 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.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2008 FF5JPL Sentry2321206014.4e-07-4.78-4.780JPL: "Analysis based on 52 observations spanning 10.849 days (2008-Mar-28.32219 to 2008-Apr-08.17156)." Diameter approximately 0.081 km. from mean, weighted H=23.1.
2007 XB23JPL Sentry23592078-211138.2e-07-7.44-7.690JPL: "Analysis based on 10 observations spanning .91734 days (2007-Dec-14.56193 to 2007-Dec-15.47927)." Diameter approximately 0.013 km. from mean, weighted H=27.1.
2007 UN12JPL Sentry23212075-2111313.0e-04-5.79-6.510JPL: "Analysis based on 123 observations spanning 24.885 days (2007-Oct-21.37247 to 2007-Nov-15.25773)." Diameter approximately 0.006 km. from mean, weighted H=28.7.
2007 EE26JPL Sentry2321R E M O V E DJPL: Risk listing removed at 2235 UTC.
2007 EZ25JPL Sentry22312047-209731.9e-07-6.91-7.140JPL: "Analysis based on 25 observations spanning 5.9454 days (2007-Mar-09.35243 to 2007-Mar-15.29779)." Diameter approximately 0.026 km. from mean, weighted H=25.6.
2006 YEJPL Sentry23212082-209536.9e-07-7.65-7.950JPL: "Analysis based on 27 observations spanning .98169 days (2006-Dec-16.38443 to 2006-Dec-17.36612)." Diameter approximately 0.012 km. from mean, weighted H=27.3.
2006 UQ216JPL Sentry23212074-210643.2e-06-7.05-7.250JPL: "Analysis based on 18 observations spanning 2.7282 days (2006-Oct-29.36988 to 2006-Nov-01.09808)." Diameter approximately 0.012 km. from mean, weighted H=27.3.
2006 DO62JPL Sentry22312052-2095112.3e-06-7.26-7.560JPL: "Analysis based on 11 observations spanning .12670 days (2006-Feb-24.29931 to 2006-Feb-24.42601)." Diameter approximately 0.007 km. from mean, weighted H=28.3.
2006 BO7JPL Sentry22312060-206727.4e-07-8.27-8.450JPL: "Analysis based on 15 observations spanning 1.7435 days (2006-Jan-22.35064 to 2006-Jan-24.094181)." Diameter approximately 0.005 km. from mean, weighted H=29.3.
2005 XA8JPL Sentry21322069-2086237.5e-05-4.53-4.690JPL: "Analysis based on 62 observations spanning 17.964 days (2005-Dec-06.31929 to 2005-Dec-24.28292)." Diameter approximately 0.025 km. from mean, weighted H=25.6.
2005 TH50JPL Sentry22312031-2094213.3e-05-6.08-6.540JPL: "Analysis based on 16 observations spanning 3.7846 days (2005-Oct-09.42882 to 2005-Oct-13.21338)." Diameter approximately 0.009 km. from mean, weighted H=28.0.
2005 ED224JPL Sentry21012018-206462.9e-06-3.93-4.180JPL: "Analysis based on 11 observations spanning 3.1215 days (2005-Mar-13.26326 to 2005-Mar-16.38477)." Diameter approximately 0.054 km. from mean, weighted H=24.0.
2004 ME6JPL Sentry22312017-2113521.4e-07-5.49-6.290JPL: "Analysis based on 8 observations spanning .87335 days (2004-Jun-25.35729 to 2004-Jun-26.23064)." Diameter approximately 0.101 km. from mean, weighted H=22.6.
2003 WT153JPL Sentry21322048-2112234.2e-06-7.16-7.780JPL: "Analysis based on 45 observations spanning 2.5014 days (2003-Nov-29.31488 to 2003-Dec-01.81632)." Diameter approximately 0.008 km. from mean, weighted H=28.0.
2003 UM3JPL Sentry21012022-2110801.5e-06-7.27-8.050JPL: "Analysis based on 12 observations spanning 1.0106 days (2003-Oct-17.30722 to 2003-Oct-18.3178)." Diameter approximately 0.008 km. from mean, weighted H=28.0.
2001 UD5JPL Sentry2002210716.7e-08-6.03-6.030JPL: "Analysis based on 28 observations spanning 22.803 days (2001-Oct-19.4807 to 2001-Nov-11.28361)." Diameter approximately 0.110 km. from mean, weighted H=22.4.
2001 GP2JPL Sentry20312043-2111339.0e-05-5.23-5.850JPL: "Analysis based on 27 observations spanning 27.002 days (2001-Apr-13.3245 to 2001-May-10.32697)." Diameter approximately 0.014 km. from mean, weighted H=26.9.
2001 CA21JPL Sentry20312020-207344.0e-09-4.27-4.500JPL: "Analysis based on 10 observations spanning 1.9210 days (2001-Feb-02.45718 to 2001-Feb-04.37822)." Diameter approximately 0.679 km. from mean, weighted H=18.5.
2001 AV43JPL Sentry20022066-210542.4e-07-6.70-6.960JPL: "Analysis based on 1 radar Doppler and 47 optical observations spanning 182.44 days (2000-Aug-30.08073 to 2001-Feb-28.51881)." Diameter approximately 0.046 km. from mean, weighted H=24.4.
2000 SG344JPL Sentry20022069-2113972.4e-03-2.92-3.280JPL: "Analysis based on 31 observations spanning 507.40 days (1999-May-15.20482 to 2000-Oct-03.60723)." Diameter approximately 0.037 km. from mean, weighted H=24.8.
2000 SB45JPL Sentry21322074-21121041.5e-04-3.80-4.280JPL: "Analysis based on 18 observations spanning 2.5744 days (2000-Sep-27.27345 to 2000-Sep-29.84786)." Diameter approximately 0.046 km. from mean, weighted H=24.3.
1997 TC25JPL Sentry1903209612.9e-07-6.68-6.680JPL: "Analysis based on 17 observations spanning 22.743 days (1997-Sep-30.53953 to 1997-Oct-23.28283)." Diameter approximately 0.039 km. from mean, weighted H=24.7.
1994 GKJPL Sentry19032051-206756.8e-05-3.69-3.700JPL: "Analysis based on 11 observations spanning 3.0263 days (1994-Apr-07.15081 to 1994-Apr-10.17711)." Diameter approximately 0.048 km. from mean, weighted H=24.2.
1979 XBJPL Sentry19032056-210233.8e-07-2.92-2.990JPL: "Analysis based on 17 observations spanning 3.9189 days (1979-Dec-11.51059 to 1979-Dec-15.42951)." Diameter approximately 0.681 km. from mean, weighted H=18.5.

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 5 August '13

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

2359Noted that JPL Sentry has updated its 2007 XB23 risk assessment - see above
2321Noted that JPL Sentry has updated its 2006 UQ216 risk assessment - see above
Noted that JPL Sentry has updated its 2006 YE risk assessment - see above
Noted that JPL Sentry has removed 2007 EE26 as an impact risk - see above
Noted that JPL Sentry has updated its 2007 UN12 risk assessment - see above
Noted that JPL Sentry has updated its 2008 FF5 risk assessment - see above
2231Noted that JPL Sentry has updated its 2004 ME6 risk assessment - see above
Noted that JPL Sentry has updated its 2005 TH50 risk assessment - see above
Noted that JPL Sentry has updated its 2006 BO7 risk assessment - see above
Noted that JPL Sentry has updated its 2006 DO62 risk assessment - see above
Noted that JPL Sentry has updated its 2007 EZ25 risk assessment - see above
2132Noted that JPL Sentry has updated its 2000 SB45 risk assessment - see above
Noted that JPL Sentry has updated its 2003 WT153 risk assessment - see above
Noted that JPL Sentry has updated its 2005 XA8 risk assessment - see above
2101Noted that JPL Sentry has updated its 2003 UM3 risk assessment - see above
Noted that JPL Sentry has updated its 2005 ED224 risk assessment - see above
2031Noted that JPL Sentry has updated its 2001 CA21 risk assessment - see above
Noted that JPL Sentry has updated its 2001 GP2 risk assessment - see above
2002Noted that JPL Sentry has updated its 2000 SG344 risk assessment - see above
Noted that JPL Sentry has updated its 2001 AV43 risk assessment - see above
Noted that JPL Sentry has updated its 2001 UD5 risk assessment - see above
Grabbed MPEC 2013-P31 - 2013 PZ6 - see above
Grabbed MPEC 2013-P32 - 2013 PA7 - see above
Grabbed MPEC 2013-P33 - 2013 PB7 - see above
Grabbed MPEC 2013-P34 - 2013 PC7 - see above
1903Noted that JPL Sentry has updated its 1979 XB risk assessment - see above
Noted that JPL Sentry has updated its 1994 GK risk assessment - see above
Noted that JPL Sentry has updated its 1997 TC25 risk assessment - see above
1734Grabbed MPEC 2013-P30 - 2013 PY6 - see above
1705Grabbed MPEC 2013-P27 - 2013 PV6 - see above
Grabbed MPEC 2013-P28 - 2013 PW6 - see above
Grabbed MPEC 2013-P29 - 2013 PX6 - see above
1609Grabbed MPEC 2013-P24 - 2007 UB66 - see above
Grabbed MPEC 2013-P25 - 2012 CL19 - see above
Grabbed MPEC 2013-P26 - 2012 QG42 - see above
1443Generated Traffic Report