Contents  on 16 March '10

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.

NEOCP Activity  on 16 March '10

The MPC's NEO Confirmation Page has 10 listings: 2 new, 8 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two new and eight updated listings. Of these, four were "one nighters." So far The Tracking News has counted a total of seventeen listings on the NEOCP at some point 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 16 March '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2010-F07 - "17:24 UT" - 2010 EA46


MPEC 2010-F06 - "17:17 UT" - 2010 EZ45


MPEC 2010-F05 - "17:01 UT" - 2010 EW45


MPEC 2010-F04 - "16:56 UT" - 2010 EV45


<< DOU on 16 Mar. '10 >>  MPEC 2010-F03 - "06:11 UT" - Daily Orbit Update


MPEC 2010-F02 - "00:27 UT" - Comet P/2002 CF140 = 2010 E4 (LINEAR)


MPEC 2010-F01 - "00:15 UT" - Comet C/2010 E3 (WISE)

Observers  on 16 March '10

A total of 32 observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2010-F01 -- C/2010 E3
A81Balzaretto Obs. in Italy, 4 in MPEC 2010-F03 -- 2010 CV180, 2010 CC180, 2008 EE, 163243
B88Bigmuskie Obs. in Italy, 3 in MPEC 2010-F03 -- 2006 DS14, 2006 CX10, 162998
160Castelmartini Obs. in Italy, 8 in MPECs 2010-F03 & 2010-F06 -- 2010 EZ45, 86067, 24761, 232382, 175706, 11066, 3554, 1627
703Catalina Sky Survey (CSS) in Arizona, 8 in MPECs 2010-F03, 2010-F04, 2010-F06 & 2010-F07 -- 2010 EZ45, 2010 EV45, 2010 EJ43, 2010 EA46, 2010 CV180, 88254, 68216, 141525
106Crni Vrh Obs. in Slovenia, 2 in MPEC 2010-F03 -- 2006 EE1, 24761
J19El Maestrat Obs. in Spain, 1 in MPEC 2010-F03 -- 433
143Gnosca Obs. in Switzerland, 1 in MPEC 2010-F06 -- 2010 EZ45
683Goodricke-Pigott Obs. in Arizona, 2 in MPEC 2010-F03 -- 68216, 175706
J95Great Shefford Obs. in England, 4 in MPECs 2010-F01, 2010-F04, 2010-F05 & 2010-F07 -- 2010 EW45, 2010 EV45, 2010 EA46, C/2010 E3
J37Huelva Obs. in Spain, 1 in MPEC 2010-F03 -- 3554
J75La Sagra Obs. in Spain, 2 in MPECs 2010-F02 & 2010-F04 -- 2010 EV45, P/2010 E4
560Madonna di Dossobuono Obs. in Italy, 5 in MPEC 2010-F03 -- 2010 CV180, 2010 CC180, 2008 EE, 2006 DS14, 2004 TR13
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-F01 -- C/2010 E3
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-F03 -- 2010 CS19
A99Monte Baldo Obs. in Italy, 1 in MPEC 2010-F06 -- 2010 EZ45
474Mt. John Obs. in New Zealand, 8 in MPECs 2010-F03 & 2010-F06 -- 2010 EZ45, 2010 EQ43, 2010 EF44, 2010 CN1, 2009 WR6, 2009 TG8, 2009 SV171, 2000 RE52
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPECs 2010-F02, 2010-F03 & 2010-F05 -- 2010 EW45, 2010 EG43, P/2010 E4, 2003 UL12, 2001 RZ11, 20790, 10145, 4015
A24New Millennium Obs. in Italy, 1 in MPEC 2010-F06 -- 2010 EZ45
A53Peschiera del Garda Obs. in Italy, 3 in MPEC 2010-F03 -- 2010 CV180, 2010 CC180, 2000 CO101
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-F03 -- 2010 EF21
854Sabino Canyon Obs. in Arizona, 2 in MPECs 2010-F04 & 2010-F06 -- 2010 EZ45, 2010 EV45
B04Saint-Barthelemy Obs. in Italy, 2 in MPECs 2010-F06 & 2010-F07 -- 2010 EZ45, 2010 EA46
434San Benedetto Po Obs. in Italy, 2 in MPEC 2010-F03 -- 85839, 3554
E12Siding Spring Survey (SSS) in New South Wales, 4 in MPEC 2010-F03 -- 2010 CR1, 2009 CQ5, 4947, 1980
587Sormano Obs. in Italy, 2 in MPECs 2010-F01 & 2010-F06 -- 2010 EZ45, C/2010 E3
691Spacewatch 0.9m telescope in Arizona, 5 in MPECs 2010-F01 & 2010-F03 -- 2010 EX11, C/2010 E3, 2010 DM56, 221980, 8567
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2010-F03 & 2010-F05 -- 2010 EW45, 2010 DN1, 2010 DJ56, 2010 CN44
926Tenagra II Obs. in Arizona, 4 in MPECs 2010-F04, 2010-F05, 2010-F06 & 2010-F07 -- 2010 EZ45, 2010 EW45, 2010 EV45, 2010 EA46
A55Vallemare di Borbona Obs. in Italy, 1 in MPEC 2010-F06 -- 2010 EZ45
C51WISE in Earth polar orbit, 1 in MPEC 2010-F01 -- C/2010 E3
G56Walnut Creek Obs. in northern California, 2 in MPEC 2010-F03 -- 2010 EG21, 2000 CO101
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 March '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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 CLOMON (backup) 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
2010 EA46JPL Sentry19002023-2106211.0e-06-5.35-5.690JPL: "Analysis based on 17 observations spanning 1.0910 days (2010-Mar-15.39725 to 2010-Mar-16.48829)." Diameter approximately 0.057 km. from mean, weighted H=23.8.
2010 EW45JPL Sentry21082011-21041401.4e-07-2.30-2.670JPL: "Analysis based on 20 observations spanning 1.0136 days (2010-Mar-15.10972 to 2010-Mar-16.12334)." Diameter approximately 0.991 km. from mean, weighted H=17.7.
2010 EN44JPL Sentry05482014-21093139.5e-07-6.10-7.330JPL: "Analysis based on 6 observations spanning .33082 days (2010-Mar-12.06614 to 2010-Mar-12.39696)." Diameter approximately 0.031 km. from mean, weighted H=25.2.
2010 EK44NEODyS15192020-202325.95e-10-5.99-6.000NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2010/03/13.360 to 2010/03/15.520."
2010 DM56JPL Sentry17072071-208674.1e-06-2.95-3.330JPL: "Analysis based on 43 observations spanning 20.907 days (2010-Feb-19.26983 to 2010-Mar-12.1764)." Diameter approximately 0.360 km. from mean, weighted H=19.9.
NEODyS15192071-2088124.22e-06-2.94-3.320NEODyS: "Based on 43 optical observations (of which 0 are rejected as outliers) from 2010/02/19.271 to 2010/03/12.177."
2010 CS19JPL Sentry1707210443.9e-05-6.28-6.300JPL: "Analysis based on 45 observations spanning 5.2215 days (2010-Feb-15.32692 to 2010-Feb-20.548374)." Diameter approximately 0.009 km. from mean, weighted H=28.0.

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 16 March '10

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

2108Noted that JPL Sentry has posted 2010 EW45 as an impact risk - see above
1900Noted that JPL Sentry has posted 2010 EA46 as an impact risk - see above
1824Grabbed MPEC 2010-F05 - 2010 EW45 - see above
Grabbed MPEC 2010-F06 - 2010 EZ45 - see above
Grabbed MPEC 2010-F07 - 2010 EA46 - see above
1707Noted that JPL Sentry has updated its 2010 CS19 risk assessment - see above
Noted that JPL Sentry has updated its 2010 DM56 risk assessment - see above
Grabbed MPEC 2010-F04 - 2010 EV45 - see above
1519Noted that NEODyS has updated its 2010 DM56 risk assessment - see above
Noted that NEODyS has posted 2010 EK44 as an impact risk - see above
Grabbed MPEC 2010-F03 - Daily Orbit Update - see above
0548Noted that JPL Sentry has posted 2010 EN44 as an impact risk - see above
0143Grabbed MPEC 2010-F02 - Comet P/2002 CF140 = 2010 E4 (LINEAR) - see above
0028Grabbed MPEC 2010-F01 - Comet C/2010 E3 (WISE) - see above