Contents  on 28 October '13

NOTE:  The A/CC news pages will update less frequently than usual during the next few days.

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 28 October '13

Two objects reported inside ten LD

There are two objects reported moving within ten lunar distances (LD) of our planet today. Inside Earth's Hill sphere, intruder 2013 UX2 is outbound from 2.11 to 2.96 LD, while intruder 2013 UV3 enters the sphere, coming in from 7.2 to 3.5 LD.

Coming toward us next, 2013 UE1 arrives inside ten LD on November 4th, radar target 2001 AV43 arrives on November 6th, and radar target 2013 NJ on November 19th.

This report was generated at 1905 UTC with new discovery 2013 UJ5 (MPEC) and follow-up in today's DOU MPEC for 2013 UT4, 2013 UG1, and 2013 UE1.



Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) is estimated to extend out to around 3.89 LD. 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 28 October '13

The MPC's NEO Confirmation Page has 27 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 27 objects listed. Of these, fifteen were "one nighters." So far The Tracking News has counted a total of 47 listings on the NEOCP today.

New MPECs  on 28 October '13

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been fifteen MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


<< OOC on 28 Oct. '13 >> MPEC 2013-U73 - "23:48 UT" - Observations and Orbits of Comets


MPEC 2013-U72 - "21:43 UT" - 2013 UR5


MPEC 2013-U71 - "21:39 UT" - 2013 UQ5


MPEC 2013-U70 - "21:34 UT" - 2013 UP5


MPEC 2013-U69 - "21:28 UT" - 2013 UO5


MPEC 2013-U68 - "18:00 UT" - 2013 TL117 = 2013 UT2


MPEC 2013-U67 - "16:48 UT" - 2013 UN5


MPEC 2013-U66 - "16:43 UT" - 2013 UM5


MPEC 2013-U65 - "16:37 UT" - 2013 UL5


MPEC 2013-U64 - "16:32 UT" - 2013 UK5


MPEC 2013-U63 - "16:26 UT" - 2013 UJ5


MPEC 2013-U62 - "12:04 UT" - 2013 UH5


MPEC 2013-U61 - "11:56 UT" - 2013 UG5


MPEC 2013-U60 - "11:49 UT" - 2013 UF5


<< DOU on 28 Oct. '13 >>  MPEC 2013-U59 - "06:04 UT" - Daily Orbit Update

Observers  on 28 October '13

A total of 85 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 6 in MPEC 2013-U73 -- C/2013 R1, C/2012 X1, C/2012 S1, C/2011 J2, 154P, 2P
J24Altamira Obs. in the Canary Islands, 20 in MPEC 2013-U73 -- C/2013 R1, P/2013 J2, C/2013 E2, C/2013 A1, C/2012 S4, C/2012 S1, C/2012 K1, C/2012 F6, C/2012 A2, C/2011 L4, C/2010 S1, C/2009 F4, 292P, 291P, 257P, 184P, 154P, 119P, 17P, 4P
J57Alto Turia Obs. in Spain, 2 in MPEC 2013-U73 -- C/2013 R1, C/2012 F6
H21Astronomical Research Obs. Westfield in Illinois, 11 in MPECs 2013-U59, 2013-U61, 2013-U62, 2013-U63, 2013-U65, 2013-U66, 2013-U68, 2013-U70, 2013-U71 & 2013-U72 -- 2013 UR5, 2013 UQ5, 2013 UP5, 2013 UM5, 2013 UL5, 2013 UJ5, 2013 UH5, 2013 UG5, 2013 TL117, 2013 SK19, 2009 WC52
I47Auger Obs. in Argentina, 2 in MPEC 2013-U73 -- C/2009 F4, 154P
C34Baja Obs. in Hungary, 2 in MPEC 2013-U73 -- C/2013 R1, 154P
L22Barlad Obs., 1 in MPEC 2013-U73 -- C/2013 R1
300Bisei Spaceguard Center in Japan, 1 in MPEC 2013-U61 -- 2013 UG5
C86Blanes Obs. in Spain, 8 in MPEC 2013-U73 -- C/2013 R1, C/2012 S1, C/2012 F6, C/2011 L4, C/2011 J2, C/2010 S1, 154P, 2P
I99Blanquita Obs. in Spain, 4 in MPEC 2013-U73 -- C/2013 E2, C/2012 F6, C/2010 S1, 154P
B59Borken Obs. in Germany, 1 in MPEC 2013-U73 -- 154P
B96Brixiis Obs. in Belgium, 9 in MPEC 2013-U73 -- C/2013 P2, C/2013 E2, C/2012 X1, C/2012 S1, C/2012 F6, C/2012 A2, C/2011 L4, 154P, 119P
W96Campo Catino Austral Obs. (CAO) in Chile, 6 in MPEC 2013-U73 -- C/2013 R1, P/2013 CU129, C/2013 A1, C/2012 V2, C/2012 S4, C/2012 S1
I72Carpe Noctem Obs., 5 in MPEC 2013-U73 -- C/2013 R1, C/2012 S1, C/2010 S1, 154P, 2P
703Catalina Sky Survey (CSS) in Arizona, 18 in MPECs 2013-U59, 2013-U62, 2013-U68 & 2013-U73 -- 2013 UH5, 2013 TL117, 2013 SK19, C/2013 S1, P/2013 J2, C/2013 E2, C/2012 F6, C/2012 A2, 2005 EF, 251346, 162566, 142781, 8201, 6063, 1580, 291P, 158P, 32P
470Ceccano Obs. in Italy, 1 in MPEC 2013-U73 -- C/2013 R1
K51Celado Obs., 3 in MPECs 2013-U59 & 2013-U73 -- C/2010 U3, 220909, 162694
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPECs 2013-U60 & 2013-U61 -- 2013 UG5, 2013 UF5
G58Chabot Obs. in northern California, 2 in MPEC 2013-U73 -- C/2013 R1, C/2012 S1
A77Chante-Perdrix Obs. in France, 7 in MPEC 2013-U73 -- C/2013 R1, P/2013 J2, C/2012 X1, C/2012 S1, C/2012 J1, 154P, 2P
970Chelmsford Obs. in England, 6 in MPEC 2013-U73 -- C/2012 X1, C/2012 U1, C/2012 F6, 290P, 119P, 102P
B92Chinon Obs. in France, 1 in MPEC 2013-U73 -- 154P
J01Cielo Profundo Obs. in Spain, 8 in MPEC 2013-U73 -- C/2013 R1, C/2012 S1, 290P, 184P, 154P, 119P, 102P, 2P
I51Clinton Obs., 1 in MPEC 2013-U73 -- 154P
958Dax Obs. in France, 1 in MPEC 2013-U72 -- 2013 UR5
448Desert Moon Obs. in New Mexico, 2 in MPECs 2013-U65 & 2013-U72 -- 2013 UR5, 2013 UL5
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 4 in MPECs 2013-U59, 2013-U62, 2013-U66 & 2013-U72 -- 2013 UR5, 2013 UR3, 2013 UM5, 2013 UH5
I57Elche Obs., 5 in MPEC 2013-U73 -- C/2013 R1, C/2012 X1, C/2012 S1, C/2010 S1, 154P
Z81Estrella de Mar Obs., 2 in MPEC 2013-U59 -- 2013 UG1, 142781
734Farpoint Obs. in Kansas, 2 in MPECs 2013-U62 & 2013-U73 -- 2013 UH5, 178P
157Frasso Sabino Obs. in Italy, 1 in MPEC 2013-U59 -- 2013 TV135
I88Fuensanta de Martos Obs., 2 in MPEC 2013-U73 -- C/2013 R1, C/2012 S1
372Geisei Obs. in Japan, 5 in MPEC 2013-U73 -- P/2013 R3, C/2013 R1, C/2012 X1, C/2012 S1, 2P
J95Great Shefford Obs. in England, 1 in MPEC 2013-U62 -- 2013 UH5
238Grorudalen Obs., 3 in MPEC 2013-U73 -- C/2012 S1, C/2012 F6, 290P
H15ISON-NM Obs. in New Mexico, 2 in MPECs 2013-U59 & 2013-U72 -- 2013 UR5, 2013 TV135
987Isle of Man Obs. on the Isle of Man, 4 in MPEC 2013-U73 -- C/2013 R1, C/2012 X1, C/2012 S1, 2P
585Kiev Comet Station in the Ukraine, 1 in MPEC 2013-U73 -- C/2012 S1
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2013-U73 -- C/2013 TW5
D95Kurihara Obs. in Japan, 5 in MPEC 2013-U73 -- C/2013 R1, C/2013 N4, C/2012 X1, C/2012 S1, 2P
W85LCOGT Cerro Tololo A in Chile, 4 in MPECs 2013-U60, 2013-U61, 2013-U64 & 2013-U69 -- 2013 UO5, 2013 UK5, 2013 UG5, 2013 UF5
V37LCOGT Fort Davis in Texas, 1 in MPEC 2013-U71 -- 2013 UQ5
J75La Sagra Obs. in Spain, 1 in MPEC 2013-U72 -- 2013 UR5
J38La Vara Obs. in Spain, 6 in MPEC 2013-U73 -- P/2013 J2, C/2012 F6, C/2011 L4, C/2010 S1, 154P, 119P
P34Lvye Obs., 2 in MPEC 2013-U73 -- C/2013 R1, 154P
C10Maisoncelles Obs. in France, 2 in MPEC 2013-U73 -- C/2012 X1, C/2012 S1
A02Masia Cal Maciarol Modul 8 (MCM8) in Spain, 2 in MPEC 2013-U73 -- P/2013 R3, 119P
711McDonald Obs. in Texas, 10 in MPECs 2013-U59, 2013-U65 & 2013-U72 -- 2013 UR5, 2013 UL5, 2013 UG1, 2013 UB1, 2013 TV135, 2013 SR24, 2013 SA20, 2013 RW73, 2011 BO24, 137062
945Monte Deva Obs. in Spain, 2 in MPEC 2013-U73 -- C/2011 L4, 119P
900Moriyama Obs. in Japan, 8 in MPEC 2013-U73 -- C/2012 S1, C/2012 K8, C/2012 K1, C/2012 F6, C/2011 L4, 154P, 98P, 4P
G96Mt. Lemmon Survey (MLS) in Arizona, 13 in MPECs 2013-U59, 2013-U62, 2013-U63, 2013-U65, 2013-U66, 2013-U70, 2013-U71 & 2013-U73 -- 2013 UQ5, 2013 UP5, 2013 UM5, 2013 UL5, 2013 UJ5, 2013 UH5, P/2013 R3, P/2013 O2, 88710, 373135, 141851, 291P, 154P
J93Mt. Tuffley Obs. in England, 4 in MPEC 2013-U73 -- C/2012 K1, C/2011 L4, C/2010 S1, 154P
E07Murrumbateman Obs. in New South Wales, 1 in MPEC 2013-U73 -- P/2013 CU129
C47Nonndorf Obs. in Austria, 4 in MPEC 2013-U73 -- P/2013 J2, C/2012 F6, C/2011 L4, 154P
C23Olmen Obs. in Belgium, 19 in MPEC 2013-U73 -- C/2013 R1, P/2013 J2, C/2013 E2, C/2012 X1, C/2012 S1, C/2012 K1, C/2012 J1, C/2012 F6, C/2012 A2, C/2011 L4, C/2011 J2, C/2010 S1, 257P, 184P, 154P, 102P, 84P, 4P, 2P
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2013-U73 -- P/2013 J2
I41Palomar Transient Factory (PTF) in southern California, 8 in MPECs 2013-U59, 2013-U68 & 2013-U73 -- 2013 TL117, P/2013 R3, 1990 UP, 53550, 355256, 162694, 10115, 119P
F51Pan-STARRS 1 (PS1) in Hawaii, 20 in MPECs 2013-U59, 2013-U60, 2013-U61, 2013-U64, 2013-U67, 2013-U69 & 2013-U73 -- 2013 UU4, 2013 UO5, 2013 UN5, 2013 UK5, 2013 UG5, 2013 UF5, 2013 UD1, 2013 TH135, P/2013 R3, C/2013 E2, C/2012 S4, 2008 HB38, 373135, 30825, 285990, 20429, 143649, 11398, 3361, 70P
B49Paus Obs. in Spain, 1 in MPEC 2013-U72 -- 2013 UR5
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 10 in MPEC 2013-U73 -- C/2013 P2, P/2013 J2, C/2012 S4, C/2012 K8, C/2012 F6, C/2010 S1, 154P, 119P, 102P, 4P
D29Purple Mtn. Obs. Xuyi Station in China, 5 in MPECs 2013-U59 & 2013-U73 -- P/2013 R3, C/2012 S4, 4183, 3691, 257P
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 13 in MPECs 2013-U62 & 2013-U73 -- 2013 UH5, C/2013 R1, P/2013 J2, C/2013 E2, C/2013 A1, C/2012 V2, C/2012 S4, C/2012 J1, C/2011 F1, 292P, 257P, 246P, 84P
L04ROASTERR-1 Obs., 7 in MPECs 2013-U59 & 2013-U73 -- 2013 TV135, C/2012 X1, C/2012 S1, C/2012 F6, C/2011 J2, 290P, 154P
939Rodeno Obs. in Spain, 7 in MPEC 2013-U73 -- P/2013 J2, C/2013 E2, C/2012 K1, C/2012 F6, C/2012 A2, C/2010 S1, 154P
Y00SONEAR Obs. in Brazil, 6 in MPEC 2013-U73 -- C/2013 A1, C/2012 V2, C/2012 A2, 292P, 246P, 154P
461SZTE Asteroid Program in Hungary, 1 in MPEC 2013-U73 -- C/2012 F6
H36Sandlot Obs. in Kansas, 3 in MPECs 2013-U65, 2013-U66 & 2013-U72 -- 2013 UR5, 2013 UM5, 2013 UL5
B70Sant Celoni Obs. in Spain, 2 in MPEC 2013-U73 -- P/2013 R3, C/2012 A2
B74Santa Maria de Montmagastrell Obs. in Spain, 3 in MPECs 2013-U61 & 2013-U73 -- 2013 UG5, 154P, 102P
204Schiaparelli Obs. in Italy, 1 in MPEC 2013-U59 -- 2013 TV135
510Siegen Obs. in Germany, 3 in MPEC 2013-U73 -- P/2013 R3, C/2013 R1, C/2012 S1
G404Don Cranford, Jr. in North Carolina via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2013-U73 -- C/2012 S1
K90Sopot Obs., 10 in MPECs 2013-U59 & 2013-U73 -- 2013 UG1, 2013 TR5, C/2013 R1, 2013 OM9, P/2013 J2, C/2012 S1, C/2012 F6, C/2011 J2, C/2010 S1, 2P
691Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2013-U59 & 2013-U73 -- 2013 TD4, P/2013 O2, C/2009 S3, 370688
291Spacewatch 1.8m telescope in Arizona, 12 in MPECs 2013-U59, 2013-U60, 2013-U61, 2013-U64, 2013-U65, 2013-U67, 2013-U69 & 2013-U71 -- 2013 UQ5, 2013 UP1, 2013 UO5, 2013 UN5, 2013 UL5, 2013 UK5, 2013 UG5, 2013 UF5, 2013 TX5, 2013 TS132, 2013 TD6, 2007 US12
A71Stixendorf Obs. in Austria, 6 in MPEC 2013-U73 -- C/2013 R1, C/2013 N4, C/2012 X1, C/2012 S1, 290P, 2P
I81Tarbatness Obs. in Scotland, 14 in MPEC 2013-U73 -- C/2013 R1, P/2013 J2, C/2013 E2, C/2012 X1, C/2012 S1, C/2012 J1, C/2012 F6, C/2012 A2, C/2011 L4, C/2011 J2, 290P, 257P, 154P, 102P
926Tenagra II Obs. in Arizona, 15 in MPECs 2013-U59, 2013-U60, 2013-U61, 2013-U64, 2013-U65, 2013-U67, 2013-U72 & 2013-U73 -- 2013 UT4, 2013 US4, 2013 UR5, 2013 UR4, 2013 UN5, 2013 UL5, 2013 UK5, 2013 UG5, 2013 UG1, 2013 UF5, 2013 UE1, 2013 UC1, 2013 UB3, 2013 UB1, C/2013 TW5
C35Terrassa Obs., 18 in MPEC 2013-U73 -- P/2013 J2, C/2013 E2, C/2012 X1, C/2012 S1, C/2012 J1, C/2012 F6, C/2011 L4, C/2011 J2, C/2010 S1, C/2009 F4, 290P, 257P, 184P, 154P, 119P, 102P, 4P, 2P
B51Vallauris Obs. in France, 4 in MPEC 2013-U73 -- C/2013 R1, C/2012 S1, C/2011 J2, 2P
C90Vinyols Obs., 1 in MPEC 2013-U73 -- 154P
367Yatsuka Obs. in Japan, 6 in MPEC 2013-U73 -- C/2013 R1, C/2013 N4, C/2012 X1, C/2012 S1, C/2011 J2, 2P
J08Zonalunar Obs. in Spain, 2 in MPECs 2013-U72 & 2013-U73 -- 2013 UR5, C/2012 X1
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-U73 -- C/2012 S1
H06Lprogram code "L" via iTelescope Obs. Mayhill in New Mexico, 2 in MPEC 2013-U73 -- C/2012 S1, 2P
H06`Erik Bryssinck in Belgium via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-U73 -- C/2012 S1
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-U68 -- 2013 TL117
Q62/program code "/" (24) via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2013-U73 -- C/2013 A1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 28 October '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
2013 TV135JPL Sentry19152032-204723.5e-05-1.41-1.411JPL #2 for the day: "Analysis based on 425 observations spanning 18.991 days (2013-Oct-08.85531 to 2013-Oct-27.84616)." Diameter approximately 0.450 km. from mean, weighted H=19.4.
NEODyS16532032-204727.53e-05-1.08-1.081NEODyS: "Based on 432 optical observations (of which 7 are rejected as outliers) from 2013-10-08.856 to 2013-10-27.847."

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 28 October '13

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

2359Grabbed MPEC 2013-U73 - Observations and Orbits of Comets - see above
2206Grabbed MPEC 2013-U69 - 2013 UO5 - see above
Grabbed MPEC 2013-U70 - 2013 UP5 - see above
Grabbed MPEC 2013-U71 - 2013 UQ5 - see above
Grabbed MPEC 2013-U72 - 2013 UR5 - see above
1915Noted that JPL Sentry has updated its 2013 TV135 risk assessment - see above
1905Generated Traffic Report
1846Grabbed MPEC 2013-U68 - 2013 TL117 = 2013 UT2 - see above
1653Noted that NEODyS has updated its 2013 TV135 risk assessment - see above
Grabbed MPEC 2013-U59 - Daily Orbit Update - see above
Grabbed MPEC 2013-U60 - 2013 UF5 - see above
Grabbed MPEC 2013-U61 - 2013 UG5 - see above
Grabbed MPEC 2013-U62 - 2013 UH5 - see above
Grabbed MPEC 2013-U63 - 2013 UJ5 - see above
Grabbed MPEC 2013-U64 - 2013 UK5 - see above
Grabbed MPEC 2013-U65 - 2013 UL5 - see above
Grabbed MPEC 2013-U66 - 2013 UM5 - see above
Grabbed MPEC 2013-U67 - 2013 UN5 - see above
0325Noted that JPL Sentry has updated its 2013 TV135 risk assessment - see above