Contents  on 24 April '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 24 April '10

The MPC's NEO Confirmation Page has 11 listings: 5 new, 6 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and six updated listings. Of these, six were "one nighters." So far The Tracking News has counted a total of twelve 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 24 April '10

Minor Planet Electronic Circulars

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


MPEC 2010-H59 - "17:56 UT" - Observations of Comets


MPEC 2010-H58 - "17:36 UT" - 2008 EM9


MPEC 2010-H57 - "17:19 UT" - Comet P/2010 H2 (Vales)


MPEC 2010-H56 - "17:02 UT" - Comet C/2010 G3 (WISE)


MPEC 2010-H55 - "16:58 UT" - Comet C/2010 G2 (Hill)


MPEC 2010-H54 - "16:54 UT" - Comet C/2010 G1 (Boattini)


MPEC 2010-H53 - "16:49 UT" - Comet C/2010 F3 (Scotti)


MPEC 2010-H52 - "16:43 UT" - Comet C/2010 F1 (Boattini)


MPEC 2010-H51 - "16:38 UT" - Comet C/2010 E5 (Scotti)


MPEC 2010-H50 - "16:35 UT" - Comet P/2010 E2 (Jarnac)


MPEC 2010-H49 - "16:27 UT" - Comet C/2010 E1 (Garradd)


MPEC 2010-H48 - "14:36 UT" - Comet C/2010 FB87 (WISE-Garradd)


<< DOU on 24 Apr. '10 >>  MPEC 2010-H47 - "06:11 UT" - Daily Orbit Update

Observers  on 24 April '10

A total of 85 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 2 in MPEC 2010-H59 -- C/2009 R1, C/2009 K2
J24Altamira Obs. in Spain, 2 in MPEC 2010-H59 -- C/2009 U3, C/2008 Q3
C12Berta Obs. in Spain, 1 in MPEC 2010-H59 -- 29P
B75Betelgeuse Station in Italy, 9 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 K5, C/2008 FK75, C/2007 Q3-A, 94P, 81P, 74P, 30P, 29P
I99Blanquita Obs. in Spain, 3 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 81P, 29P
B59Borken Obs. in Germany, 1 in MPEC 2010-H57 -- P/2010 H2
B96Brixiis Obs. in Belgium, 2 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 K5
215Buchloe Obs. in Germany, 3 in MPECs 2010-H56, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 G3, 230P
235CAST Obs. in Italy, 1 in MPEC 2010-H57 -- P/2010 H2
B09Capannoli Obs. in Italy, 1 in MPEC 2010-H57 -- P/2010 H2
B20Carmelita Obs. in Spain, 3 in MPEC 2010-H59 -- C/2007 Q3-A, 81P, 29P
B53Casal Lumbroso Obs. in Italy, 1 in MPEC 2010-H57 -- P/2010 H2
B66Casasco Obs. in Italy, 2 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2007 Q3-A
160Castelmartini Obs. in Italy, 12 in MPEC 2010-H59 -- C/2009 K5, C/2008 N1, C/2008 FK75, C/2007 Q3-A, C/2006 Q1, C/2005 L3, 149P, 118P, 94P, 81P, 30P, 9P
703Catalina Sky Survey in Arizona, 1 in MPEC 2010-H47 -- 184990
470Ceccano Obs. in Italy, 1 in MPEC 2010-H57 -- P/2010 H2
A77Chante-Perdrix Obs. in France, 6 in MPECs 2010-H50, 2010-H54, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 G1, P/2010 E2, C/2010 B1, C/2009 K2, C/2007 Q3-A
J18Churchstoke Obs. in Wales, 2 in MPEC 2010-H59 -- 81P, 29P
J01Cielo Profundo Obs. in Spain, 5 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 K5, C/2008 FK75, C/2007 Q3-A, C/2006 Q1
850Cordell-Lorenz Obs. in Tennessee, 3 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 149P, 81P
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2010-H57 -- P/2010 H2
H26Doc Greiner Research Obs. in Wisconsin, 1 in MPEC 2010-H57 -- P/2010 H2
114Engelhardt Obs. Zelenchukskaya Station in Karachay-Cherkessia, 1 in MPEC 2010-H57 -- P/2010 H2
F65Faulkes Telescope North in Hawaii, 2 in MPEC 2010-H59 -- C/2009 K5, C/2007 Q3-A
E10Faulkes Telescope South in New South Wales, 3 in MPECs 2010-H47, 2010-H48 & 2010-H57 -- 2010 HF, P/2010 H2, C/2010 FB87
B23Fiamene Obs. in Italy, 1 in MPEC 2010-H59 -- 81P
157Frasso Sabino Obs. in Italy, 1 in MPEC 2010-H57 -- P/2010 H2
372Geisei Obs. in Japan, 2 in MPECs 2010-H56 & 2010-H57 -- P/2010 H2, C/2010 G3
B83Gieres Obs. in France, 2 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 29P
E16Grove Creek Obs. in New South Wales, 1 in MPEC 2010-H59 -- 81P
458Guadarrama Obs. in Spain, 1 in MPEC 2010-H59 -- 74P
442Gualba Obs. in Spain, 1 in MPEC 2010-H59 -- 29P
A17Guidestar Obs. in Germany, 1 in MPEC 2010-H57 -- P/2010 H2
511Haute Provence Obs. in Germany, 1 in MPEC 2010-H57 -- P/2010 H2
750Hobbs Obs. in Wisconsin, 2 in MPEC 2010-H59 -- C/2007 Q3-A, 29P
196Homburg-Erbach Obs. in Germany, 1 in MPEC 2010-H59 -- C/2008 FK75
H75Indian Hill North Obs. in Ohio, 1 in MPEC 2010-H57 -- P/2010 H2
A21Irmtraut Obs. in Germany, 4 in MPEC 2010-H59 -- C/2005 L3, 118P, 94P, 30P
J28Jaen Obs. in Spain, 1 in MPEC 2010-H59 -- C/2007 Q3-A
185Jurassien-Vicques Obs. in Switzerland, 1 in MPEC 2010-H57 -- P/2010 H2
415Kambah Obs. in the Australian Capital Territory, 2 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 116P
585Kiev Comet Station in the Ukraine, 10 in MPECs 2010-H50, 2010-H52, 2010-H53, 2010-H54, 2010-H55, 2010-H56, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 G3, C/2010 G2, C/2010 G1, C/2010 F3, C/2010 F1, P/2010 E2, 149P, 81P, 10P
046Klet Obs. in the Czech Republic, 1 in MPEC 2010-H51 -- C/2010 E5
C04Kramatorsk Obs., 1 in MPEC 2010-H59 -- C/2009 K5
C06Krasnoyarsk Obs. in Russia, 4 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 K5, C/2007 Q3-A, 81P
D95Kurihara Obs. in Japan, 1 in MPEC 2010-H59 -- C/2009 R1
704LINEAR in New Mexico, 2 in MPECs 2010-H47 & 2010-H59 -- 215588, 9P
844Los Molinos Obs. in Uruguay, 6 in MPECs 2010-H48, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 FB87, P/2010 A5, 81P, 74P, 10P
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2010-H59 -- 103P
B82Maidbronn Obs. in Germany, 10 in MPECs 2010-H50, 2010-H54, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 G1, P/2010 E2, C/2010 B1, C/2008 Q3, C/2007 Q3-A, C/2005 L3, 94P, 74P, 29P
C10Maisoncelles Obs. in France, 3 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 R1, C/2009 K5
568Mauna Kea in Hawaii, 1 in MPEC 2010-H59 -- 103P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-H58 -- 2008 EM9
152Moletai Obs. in Lithuania, 3 in MPECs 2010-H54, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 G1, C/2009 K5
213Montcabre Obs. in Spain, 2 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 29P
945Monte Deva Obs. in Spain, 2 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 29P
900Moriyama Obs. in Japan, 1 in MPEC 2010-H56 -- C/2010 G3
474Mt. John Obs. in New Zealand, 1 in MPEC 2010-H51 -- C/2010 E5
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2010-H57 -- P/2010 H2
J47Nazaret Obs. in Spain, 3 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 81P, 29P
423North Ryde Obs. in New South Wales, 3 in MPEC 2010-H59 -- P/2010 A5, C/2009 F4, C/2009 F2
C22Oberwiesenthal Obs., 1 in MPEC 2010-H59 -- 29P
C23Olmen Obs., 5 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 K5, C/2007 Q3-A, 81P, 29P
A32Panker Obs. in Germany, 2 in MPEC 2010-H59 -- 94P, 29P
B49Paus Obs. in Spain, 1 in MPEC 2010-H57 -- P/2010 H2
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 8 in MPECs 2010-H50, 2010-H52, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 F1, P/2010 E2, C/2009 U3, C/2008 N1, C/2005 L3, 81P, 29P
H06RAS Obs. Mayhill in New Mexico, 7 in MPECs 2010-H54, 2010-H56, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 G3, C/2010 G1, P/2010 A3, 116P, 29P, 10P
D90RAS Obs. Moorook in South Australia, 1 in MPEC 2010-H57 -- P/2010 H2
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 2 in MPEC 2010-H47 -- 2010 HF, 2010 HA
473Remanzacco Obs. in Italy, 7 in MPECs 2010-H49, 2010-H50, 2010-H51, 2010-H52, 2010-H53, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 F3, C/2010 F1, C/2010 E5, P/2010 E2, C/2010 E1, 29P
B74Santa Maria de Montmagastrell Obs. in Spain, 2 in MPEC 2010-H59 -- 94P, 29P
204Schiaparelli Obs. in Italy, 3 in MPECs 2010-H49, 2010-H57 & 2010-H59 -- P/2010 H2, C/2010 E1, 29P
D93Sendai Obs. in Japan, 4 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2007 Q3-A, 81P, 29P
E12Siding Spring Survey in New South Wales, 1 in MPEC 2010-H48 -- C/2010 FB87
510Siegen Obs. in Germany, 11 in MPECs 2010-H47, 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 K5, C/2008 FK75, C/2007 Q3-A, 2006 CX10, 2005 YU55, 1627, 433, 94P, 81P, 29P
G68Sierra Stars Obs. in northern California, 1 in MPEC 2010-H59 -- 29P
587Sormano Obs. in Italy, 1 in MPEC 2010-H57 -- P/2010 H2
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2010-H47 -- 230111
611Starkenburg Obs. in Germany, 1 in MPEC 2010-H47 -- 2010 FF10
H10Tzec Maun Obs. Mayhill in New Mexico, 9 in MPECs 2010-H47, 2010-H57 & 2010-H59 -- P/2010 H2, 2010 GU21, C/2009 U3, C/2009 K5, C/2008 FK75, C/2007 Q3-A, 116P, 81P, 10P
D96Tzec Maun Obs. Moorook in South Australia, 5 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, C/2009 R1, C/2009 F4, 116P, 10P
H47Vicksburg Obs. in Mississippi, 2 in MPEC 2010-H59 -- C/2008 N1, 94P
B42Vitebsk Obs. in Belarus, 4 in MPECs 2010-H57 & 2010-H59 -- P/2010 H2, 230P, 94P, 29P
C51WISE in Earth polar orbit, 4 in MPECs 2010-H56 & 2010-H59 -- C/2010 G3, C/2006 Q1, 226P, 100P
G56Walnut Creek Obs. in northern California, 1 in MPEC 2010-H47 -- 2010 GU21
940Waterlooville Obs. in England, 1 in MPEC 2010-H59 -- C/2007 Q3-A
J08Zonalunar Obs. in Spain, 1 in MPEC 2010-H47 -- 220124
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 24 April '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 HP20NEODyS15512021-20903463.93e-05-6.19-7.790NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2010/04/20.449 to 2010/04/20.497."

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 24 April '10

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

1817Grabbed MPEC 2010-H56 - Comet C/2010 G3 (WISE) - see above
Grabbed MPEC 2010-H57 - Comet P/2010 H2 (Vales) - see above
Grabbed MPEC 2010-H58 - 2008 EM9 - see above
Grabbed MPEC 2010-H59 - Observations of Comets - see above
1706Grabbed MPEC 2010-H50 - Comet P/2010 E2 (Jarnac) - see above
Grabbed MPEC 2010-H51 - Comet C/2010 E5 (Scotti) - see above
Grabbed MPEC 2010-H52 - Comet C/2010 F1 (Boattini) - see above
Grabbed MPEC 2010-H53 - Comet C/2010 F3 (Scotti) - see above
Grabbed MPEC 2010-H54 - Comet C/2010 G1 (Boattini) - see above
Grabbed MPEC 2010-H55 - Comet C/2010 G2 (Hill) - see above
1633Grabbed MPEC 2010-H49 - Comet C/2010 E1 (Garradd) - see above
1551Noted that NEODyS has posted 2010 HP20 as an impact risk - see above
Grabbed MPEC 2010-H47 - Daily Orbit Update - see above
Grabbed MPEC 2010-H48 - Comet C/2010 FB87 (WISE-Garradd) - see above