Contents  on 8 February '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 8 February '13

Five objects reported inside ten LD

Five asteroids are reported to be inside ten lunar distances (LD) of Earth today. 2013 BA74 is outbound from 5.21 to 6.19 LD and risk-listed intruder 2013 CY from 6.43 to 7.02 LD, while radar target 2013 BS45 is inbound from 5.61 to 5.31 LD and two objects enter the ten-LD "bubble." Radar target 2013 BV15 comes inside from 10.48 to 8.77 LD and intruder 2012 DA14 (risk-listed radar target) from 10.88 to 9.50 LD.

Next known to be coming this close is risk-listed 2007 EO88, which arrives inside ten LD on March 15th.

This report was generated at 1652 UTC with follow-up in today's DOU MPEC for 2013 BA74, 2013 BS45, 2013 BV15, and 2012 DA14 as well as observation of intruder 308635 2005 YU55 from late 2011, extending that passage's observing arc by two weeks.



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 8 February '13

The MPC's NEO Confirmation Page has 22 listings

When last checked at 2139 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 22 objects listed. Of these, eighteen were "one nighters." So far The Tracking News has counted a total of 33 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 8 February '13

Minor Planet Electronic Circulars

As of last check at 2139 UTC, there have been nine MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2013-C39 - "15:34 UT" - 2013 CW35


MPEC 2013-C38 - "15:14 UT" - 2013 CP35


MPEC 2013-C37 - "13:42 UT" - 2013 CR35


MPEC 2013-C36 - "13:38 UT" - 2013 CQ35


MPEC 2013-C35 - "13:33 UT" - 2013 CO35


MPEC 2013-C34 - "13:28 UT" - 2013 CN35


MPEC 2013-C33 - "13:24 UT" - 2013 CM35


<< DOU on 8 Feb. '13 >>  MPEC 2013-C32 - "06:03 UT" - Daily Orbit Update


MPEC 2013-C31 - "00:32 UT" - Comet C/2012 LP26 (Palomar)

Observers  on 8 February '13

A total of 37 observers appear in today's MPECs.

CodeObserver / observatory
B17AZT-8 Evpatoria in the Ukraine, 1 in MPEC 2013-C32 -- 99942
E23Arcadia Obs. in New South Wales, 2 in MPECs 2013-C34 & 2013-C37 -- 2013 CR35, 2013 CN35
H21Astronomical Research Obs. Westfield in Illinois, 9 in MPECs 2013-C32, 2013-C34, 2013-C37 & 2013-C39 -- 2013 CW35, 2013 CR35, 2013 CN35, 2013 BV15, 2013 BQ45, 2013 BC74, 2013 BC18, 2013 AW60, 2013 AW52
C77Bernezzo Obs. in Italy, 1 in MPEC 2013-C37 -- 2013 CR35
B75Betelgeuse Station in Italy, 1 in MPEC 2013-C37 -- 2013 CR35
B88Bigmuskie Obs. in Italy, 1 in MPEC 2013-C32 -- 99942
703Catalina Sky Survey (CSS) in Arizona, 17 in MPECs 2013-C32, 2013-C34, 2013-C36, 2013-C37, 2013-C38 & 2013-C39 -- 2013 CW35, 2013 CR35, 2013 CQ35, 2013 CP35, 2013 CN35, 2013 BV15, 2013 AW60, 2013 AW52, 2009 SN98, 99935, 330825, 229007, 190161, 154347, 11284, 5189, 1864
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 3 in MPECs 2013-C34, 2013-C36 & 2013-C37 -- 2013 CR35, 2013 CQ35, 2013 CN35
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2013-C34 -- 2013 CN35
822Cordoba Obs. in Argentina, 1 in MPEC 2013-C34 -- 2013 CN35
958Dax Obs. in France, 1 in MPEC 2013-C34 -- 2013 CN35
448Desert Moon Obs. in New Mexico, 7 in MPECs 2013-C32, 2013-C34 & 2013-C37 -- 2013 CR35, 2013 CN35, 2013 AU76, 2012 RV16, 2011 BK24, 2006 DY, 152952
G48Doc Greiner Research Obs. Rancho Hildalgo (DGRO-RH) in New Mexico, 3 in MPECs 2013-C32, 2013-C34 & 2013-C37 -- 2013 CR35, 2013 CN35, 2013 BC18
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2013-C34 -- 2013 CN35
F658David Tholen's team in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2013-C32 -- 2013 AP60
157Frasso Sabino Obs. in Italy, 1 in MPEC 2013-C32 -- 2013 AT76
203GiaGa Obs. in Italy, 2 in MPEC 2013-C32 -- 2013 BV15, 2012 XF112
J95Great Shefford Obs. in England, 6 in MPECs 2013-C32, 2013-C34, 2013-C35, 2013-C36, 2013-C38 & 2013-C39 -- 2013 CW35, 2013 CQ35, 2013 CP35, 2013 CO35, 2013 CN35, 2006 WS1
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2013-C34 -- 2013 CN35
J131National Schools Obs. via the Liverpool Telescope in the Canary Islands, 7 in MPEC 2013-C32 -- 2012 PX, 2012 PN6, 2012 NP, 2012 MM11, 2012 ME7, 329275, 4581
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-C32 -- 2013 AA53
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2013-C33 -- 2013 CM35
711McDonald Obs. in Texas, 4 in MPECs 2013-C32, 2013-C36 & 2013-C38 -- 2013 CV32, 2013 CQ35, 2013 CP35, 2006 WS1
474Mt. John Obs. in New Zealand, 16 in MPECs 2013-C32, 2013-C34, 2013-C37, 2013-C38 & 2013-C39 -- 2013 CW35, 2013 CR35, 2013 CP35, 2013 CN35, 2013 BV15, 2013 BU2, 2013 BT45, 2013 BP18, 2013 BE19, 2013 BA74, 2013 AU27, 2013 AT76, 2013 AM60, 2012 DA14, 2008 YZ28, 2007 EL88
G96Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2013-C31, 2013-C34, 2013-C35, 2013-C36, 2013-C37 & 2013-C38 -- 2013 CR35, 2013 CQ35, 2013 CP35, 2013 CO35, 2013 CN35, C/2012 LP26
I41Palomar Transient Factory in southern California, 1 in MPEC 2013-C31 -- C/2012 LP26
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPECs 2013-C33 & 2013-C38 -- 2013 CP35, 2013 CM35
0841Alexander V. Devyatkin via Pulkovo Obs. in Russia, 1 in MPEC 2013-C32 -- 308635
C20Pulkovo Obs. Kislovodsk Mtn. Station in Russia, 1 in MPEC 2013-C32 -- 308635
V05Rusty Mtn. Obs., 1 in MPEC 2013-C37 -- 2013 CR35
H36Sandlot Obs. in Kansas, 5 in MPECs 2013-C34, 2013-C35, 2013-C36, 2013-C38 & 2013-C39 -- 2013 CW35, 2013 CQ35, 2013 CP35, 2013 CO35, 2013 CN35
204Schiaparelli Obs. in Italy, 4 in MPECs 2013-C32, 2013-C34 & 2013-C37 -- 2013 CR35, 2013 CN35, 2013 BV15, 2013 BS45
691Spacewatch 0.9m telescope in Arizona, 8 in MPECs 2013-C31, 2013-C32, 2013-C36 & 2013-C39 -- 2013 CW35, 2013 CQ35, C/2012 LP26, 2012 CD29, 39796, 261938, 198752, 5189
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2013-C31 & 2013-C32 -- 2013 CY10, 2013 BT18, 2013 BS45, 2013 AX52, 2013 AF4, 2012 YO3, C/2012 LP26
926Tenagra II Obs. in Arizona, 1 in MPEC 2013-C32 -- 2013 AY52
D20Zadko Obs. in Western Australia, 1 in MPEC 2013-C32 -- 99942
J08Zonalunar Obs. in Spain, 1 in MPEC 2013-C37 -- 2013 CR35
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-C37 -- 2013 CR35
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 February '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2139 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
2012 DA14NEODyS16492092-209826.31e-07-6.23-6.30NEODyS: "Based on 208 optical observations (of which 4 are rejected as outliers) from 2012-02-23.029 to 2013-02-07.397."

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 8 February '13

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

1652Generated Traffic Report
1649Noted that NEODyS has updated its 2012 DA14 risk assessment - see above
Grabbed MPEC 2013-C32 - Daily Orbit Update - see above
Grabbed MPEC 2013-C33 - 2013 CM35 - see above
Grabbed MPEC 2013-C34 - 2013 CN35 - see above
Grabbed MPEC 2013-C35 - 2013 CO35 - see above
Grabbed MPEC 2013-C36 - 2013 CQ35 - see above
Grabbed MPEC 2013-C37 - 2013 CR35 - see above
Grabbed MPEC 2013-C38 - 2013 CP35 - see above
Grabbed MPEC 2013-C39 - 2013 CW35 - see above
0150Grabbed MPEC 2013-C31 - Comet C/2012 LP26 (Palomar) - see above