Contents  on 19 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 19 April '10

The MPC's NEO Confirmation Page has 5 listings: 4 new, 1 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and one updated listings. Of these, two were "one nighters." So far The Tracking News has counted a total of six 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 19 April '10

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.


MPEC 2010-H27 - "18:01 UT" - Observations of Comets


MPEC 2010-H26 - "17:39 UT" - Comet P/2010 H2 (Vales)


MPEC 2010-H25 - "17:25 UT" - Comet C/2010 G2 (Hill)


MPEC 2010-H24 - "17:12 UT" - Comet C/2010 G1 (Boattini)


MPEC 2010-H23 - "17:08 UT" - Comet C/2010 F3 (Scotti)


MPEC 2010-H22 - "17:03 UT" - Comet C/2010 F1 (Boattini)


MPEC 2010-H21 - "16:59 UT" - Comet P/2010 E2 (Jarnac)


MPEC 2010-H20 - "16:54 UT" - Comet C/2010 E1 (Garradd)


MPEC 2010-H19 - "16:44 UT" - Comet C/2010 D4 (WISE)


MPEC 2010-H18 - "14:20 UT" - 2010 HF


<< DOU on 19 Apr. '10 >>  MPEC 2010-H17 - "06:10 UT" - Daily Orbit Update

Observers  on 19 April '10

A total of 84 observing facilities appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 5 in MPECs 2010-H20 & 2010-H27 -- C/2010 E1, C/2010 B1, C/2005 L3, 118P, 74P
J24Altamira Obs. in Spain, 7 in MPEC 2010-H27 -- C/2009 K5, C/2008 N1, C/2008 FK75, C/2007 Q3-A, C/2005 L3, 149P, 10P
A50Andrushivka Obs. in the Ukraine, 1 in MPEC 2010-H26 -- P/2010 H2
H21Astronomical Research Obs. Westfield (ARO Westfield) in Illinois, 12 in MPEC 2010-H17 -- 2010 GQ75, 2010 GP33, 2010 GH30, 2010 GE30, 2010 GD6, 2010 GC35, 2010 GB6, 2010 FL, 2010 EF44, 2010 CV180, 2010 AL, 2005 YU55
C12Berta Obs. in Spain, 1 in MPEC 2010-H27 -- 29P
300Bisei Spaceguard Center in Japan, 1 in MPEC 2010-H26 -- P/2010 H2
B96Brixiis Obs. in Belgium, 2 in MPEC 2010-H27 -- 94P, 81P
215Buchloe Obs. in Germany, 10 in MPECs 2010-H19, 2010-H25, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 G2, C/2010 D4, P/2010 A3, C/2009 K5, C/2008 FK75, C/2006 U6, C/2006 Q1, 81P, 10P
235CAST Obs. in Italy, 5 in MPECs 2010-H22, 2010-H23, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 F3, C/2010 F1, 94P, 29P
B09Capannoli Obs. in Italy, 5 in MPECs 2010-H17, 2010-H22, 2010-H25 & 2010-H26 -- P/2010 H2, C/2010 G2, C/2010 F1, 220124, 141531
B53Casal Lumbroso Obs. in Italy, 3 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, C/2007 Q3-A, 81P
160Castelmartini Obs. in Italy, 20 in MPECs 2010-H21, 2010-H22, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 F1, P/2010 E2, C/2010 B1, P/2010 A3, C/2009 K5, C/2008 N1, C/2008 FK75, C/2007 Q3-A, C/2006 Q1, C/2006 OF2, C/2005 L3, 169P, 157P, 149P, 118P, 94P, 81P, 30P, 29P
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2010-H22 & 2010-H27 -- C/2010 F1, C/2005 L3, 234P, 169P, 74P
A77Chante-Perdrix Obs. in France, 10 in MPECs 2010-H25 & 2010-H27 -- C/2010 G2, P/2010 A5, C/2008 N1, 232P, 169P, 118P, 94P, 81P, 74P, 29P
850Cordell-Lorenz Obs. in Tennessee, 7 in MPECs 2010-H19, 2010-H21, 2010-H26 & 2010-H27 -- P/2010 H2, P/2010 E2, C/2010 D4, C/2005 L3, 81P, 74P, 29P
B50Corner Obs. in Germany, 1 in MPEC 2010-H26 -- P/2010 H2
639Dresden Obs. in Germany, 2 in MPEC 2010-H17 -- 2010 GS7, 2005 YU55
F65Faulkes Telescope North in Hawaii, 1 in MPEC 2010-H27 -- C/2009 K5
157Frasso Sabino Obs. in Italy, 1 in MPEC 2010-H17 -- 2010 FP
372Geisei Obs. in Japan, 5 in MPECs 2010-H21, 2010-H23, 2010-H24, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 G1, C/2010 F3, P/2010 E2, C/2006 Q1
E94Gisborne Obs. in New Zealand, 1 in MPEC 2010-H26 -- P/2010 H2
J95Great Shefford Obs. in England, 2 in MPECs 2010-H17 & 2010-H26 -- P/2010 H2, 2005 YU55
442Gualba Obs. in Spain, 2 in MPEC 2010-H27 -- 81P, 29P
A17Guidestar Obs. in Germany, 5 in MPECs 2010-H17 & 2010-H26 -- P/2010 H2, 2010 GU21, 2010 GE35, 2010 GA24, 2010 FO92
240Herrenberg Obs. in Germany, 1 in MPEC 2010-H17 -- 68216
750Hobbs Obs. in Wisconsin, 1 in MPEC 2010-H17 -- 2005 YU55
196Homburg-Erbach Obs. in Germany, 3 in MPEC 2010-H17 -- 68359, 40267, 4055
H75Indian Hill North Obs. in Ohio, 1 in MPEC 2010-H22 -- C/2010 F1
J39Ingenio Obs. in the Canary Islands, 3 in MPEC 2010-H27 -- 81P, 74P, 29P
A21Irmtraut Obs. in Germany, 3 in MPECs 2010-H24 & 2010-H27 -- C/2010 G1, C/2009 K5, C/2008 FK75
G92Jarnac Obs. in Arizona, 1 in MPEC 2010-H27 -- 94P
415Kambah Obs. in the Australian Capital Territory, 2 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, 195P
585Kiev Comet Station in the Ukraine, 4 in MPECs 2010-H20, 2010-H24, 2010-H25 & 2010-H27 -- C/2010 G2, C/2010 G1, C/2010 E1, 81P
046Klet Obs. in the Czech Republic, 4 in MPECs 2010-H17, 2010-H21 & 2010-H26 -- P/2010 H2, 2010 GU6, 2010 GS7, P/2010 E2
C06Krasnoyarsk Obs. in Russia, 1 in MPEC 2010-H27 -- C/2009 K5
D95Kurihara Obs. in Japan, 4 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, C/2007 Q3-A, 81P, 29P
704LINEAR in New Mexico, 8 in MPECs 2010-H17, 2010-H18, 2010-H20, 2010-H21 & 2010-H27 -- 2010 HF, P/2010 E2, C/2010 E1, 215588, 234P, 94P, 74P, 30P
J38La Vara Obs. in Spain, 3 in MPEC 2010-H27 -- 81P, 30P, 29P
844Los Molinos Obs. in Uruguay, 1 in MPEC 2010-H27 -- 65P
188MPC code 188, 1 in MPEC 2010-H26 -- P/2010 H2
560Madonna di Dossobuono Obs. in Italy, 2 in MPEC 2010-H17 -- 2010 FQ, 2005 YU55
B82Maidbronn Obs. in Germany, 3 in MPECs 2010-H22, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 F1, 29P
C10Maisoncelles Obs. in France, 6 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, P/2010 A5, C/2007 Q3-B, C/2007 Q3-A, 81P, 29P
B90Malina River Obs. in Italy, 3 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, C/2008 FK75, C/2007 Q3-A
A02Masia Cal Maciarol Modul 8 in Spain, 1 in MPEC 2010-H27 -- 29P
232Masquefa Obs. in Spain, 1 in MPEC 2010-H27 -- 29P
A06Mataro Obs. in Spain, 1 in MPEC 2010-H27 -- 29P
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-H17 -- 2010 GQ75
152Moletai Obs. in Lithuania, 3 in MPECs 2010-H22, 2010-H24 & 2010-H27 -- C/2010 G1, C/2010 F1, 30P
213Montcabre Obs. in Spain, 5 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, C/2009 K5, 81P, 74P, 29P
945Monte Deva Obs. in Spain, 1 in MPEC 2010-H27 -- 29P
900Moriyama Obs. in Japan, 16 in MPECs 2010-H25 & 2010-H27 -- C/2010 G2, P/2010 A5, P/2010 A3, C/2009 K5, C/2008 N1, C/2007 Q3-A, C/2006 W3, C/2006 OF2, 157P, 149P, 118P, 81P, 65P, 30P, 29P, 10P
474Mt. John Obs. in New Zealand, 1 in MPEC 2010-H20 -- C/2010 E1
G96Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2010-H21 & 2010-H24 -- C/2010 G1, P/2010 E2
675{J.R. Masiero & J.W. Dailey via Mt. Palomar in southern California, 2 in MPEC 2010-H17 -- 2010 GQ75, 2009 JO2
J93Mt. Tuffley Obs. in England, 1 in MPEC 2010-H27 -- 81P
D81Nagano Obs. in Japan, 1 in MPEC 2010-H26 -- P/2010 H2
J47Nazaret Obs. in Spain, 5 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, C/2009 K5, C/2007 Q3-A, 94P, 29P
J69North Obs. in England, 1 in MPEC 2010-H17 -- 2005 YU55
423North Ryde Obs. in New South Wales, 3 in MPEC 2010-H27 -- P/2010 A5, C/2009 F2, 195P
557Ondrejov Obs. in the Czech Republic, 1 in MPEC 2010-H26 -- P/2010 H2
H23Pear Tree Obs. in Florida, 2 in MPEC 2010-H27 -- C/2008 N1, 74P
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 7 in MPECs 2010-H22, 2010-H25 & 2010-H27 -- C/2010 G2, C/2010 F1, P/2010 A5, C/2007 Q3-A, C/2006 OF2, 81P, 29P
H06RAS Obs. Mayhill in New Mexico, 1 in MPEC 2010-H26 -- P/2010 H2
473Remanzacco Obs. in Italy, 5 in MPECs 2010-H20, 2010-H21, 2010-H22, 2010-H23 & 2010-H27 -- C/2010 F3, C/2010 F1, P/2010 E2, C/2010 E1, 30P
I20Rio Cuarto Obs. in Argentina, 5 in MPEC 2010-H17 -- 2010 HA, 2010 GZ6, 2010 GU6, 2010 GA7, 2010 GA24
H36Sandlot Obs. in Kansas, 1 in MPEC 2010-H26 -- P/2010 H2
204Schiaparelli Obs. in Italy, 3 in MPECs 2010-H17 & 2010-H27 -- 2010 GA24, C/2010 B1, C/2009 F2
D93Sendai Obs. in Japan, 1 in MPEC 2010-H26 -- P/2010 H2
D21Shenton Park Obs. in Western Australia, 1 in MPEC 2010-H18 -- 2010 HF
291Spacewatch 1.8m telescope in Arizona, 9 in MPECs 2010-H17 & 2010-H18 -- 2010 HF, 2010 GW23, 2010 GT6, 2010 GR33, 2010 GF30, 2010 FP9, 2010 FF7, 2010 FC81, 1998 WB2
611Starkenburg Obs. in Germany, 3 in MPECs 2010-H17 & 2010-H26 -- 2010 HC, P/2010 H2, 2010 GE35
A71Stixendorf Obs. in Austria, 6 in MPECs 2010-H24, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 G1, P/2010 A3, C/2009 K5, 234P, 29P
B18Terskol Obs. in Russia, 3 in MPEC 2010-H27 -- C/2009 K5, 74P, 29P
H53Thompsonville Obs. in Illinois, 6 in MPEC 2010-H17 -- 2010 DB34, 2010 CM44, 2006 CX10, 54789, 218863, 3554
H10Tzec Maun Obs. Mayhill in New Mexico, 7 in MPECs 2010-H26 & 2010-H27 -- P/2010 H2, C/2008 N1, 118P, 94P, 81P, 74P, 29P
D96Tzec Maun Obs. Moorook in South Australia, 5 in MPEC 2010-H27 -- P/2010 A5, C/2006 W3, 81P, 65P, 29P
C00Velikie Luki Obs. in Russia, 2 in MPEC 2010-H17 -- 68359, 4055
A48Verona Obs. in Italy, 2 in MPEC 2010-H17 -- 2010 GS7, 2005 YU55
H47Vicksburg Obs. in Mississippi, 7 in MPEC 2010-H27 -- C/2009 K5, C/2008 N1, C/2008 FK75, C/2006 OF2, 94P, 74P, 29P
B42Vitebsk Obs. in Belarus, 1 in MPEC 2010-H27 -- 232P
718Wiggins Obs. in Utah, 1 in MPEC 2010-H17 -- 2005 YU55
367Yatsuka Obs. in Japan, 7 in MPECs 2010-H24, 2010-H26 & 2010-H27 -- P/2010 H2, C/2010 G1, C/2009 K5, C/2008 N1, C/2007 Q3-A, 81P, 65P
J08Zonalunar Obs. in Spain, 1 in MPEC 2010-H27 -- 74P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 19 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
2005 YU55NEODyS20002053-2109923.5e-07-5.10-5.860NEODyS: "Based on 684 optical observations (of which 4 are rejected as outliers) from 2005/12/24.299 to 2010/04/19.183."
JPL Sentry13312069-2109111.2e-07-5.56-6.040JPL: "Analysis based on 681 observations spanning 1576.9 days (2005-Dec-24.29832 to 2010-Apr-19.18254)." Diameter approximately 0.140 km. from mean, weighted H=21.9.

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 19 April '10

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

2000Noted that NEODyS has updated its 2005 YU55 risk assessment - see above
1833Grabbed MPEC 2010-H25 - Comet C/2010 G2 (Hill) - see above
Grabbed MPEC 2010-H26 - Comet P/2010 H2 (Vales) - see above
Grabbed MPEC 2010-H27 - Observations of Comets - see above
1731Grabbed MPEC 2010-H21 - Comet P/2010 E2 (Jarnac) - see above
Grabbed MPEC 2010-H22 - Comet C/2010 F1 (Boattini) - see above
Grabbed MPEC 2010-H23 - Comet C/2010 F3 (Scotti) - see above
Grabbed MPEC 2010-H24 - Comet C/2010 G1 (Boattini) - see above
1701Grabbed MPEC 2010-H19 - Comet C/2010 D4 (WISE) - see above
Grabbed MPEC 2010-H20 - Comet C/2010 E1 (Garradd) - see above
1507Grabbed MPEC 2010-H18 - 2010 HF - see above
1331Noted that JPL Sentry has updated its 2005 YU55 risk assessment - see above
Grabbed MPEC 2010-H17 - Daily Orbit Update - see above