Contents  on 25 April '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 25 April '13

One object reported inside ten LD

There is one visitor reported flying within ten lunar distances (LD) of Earth today. 2013 GH66 is slowly outbound from 6.14 to 6.51 LD. No other objects are known to be coming inside ten LD until late July.

This report was generated at 1424 UTC with follow-up in today's DOU MPEC for 2013 HO and 2013 GJ69 (adding 4.815 days to it previous 1.069-day observing arc), and observation of 2013 FG from last month.

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 25 April '13

The MPC's NEO Confirmation Page has 2 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had two objects listed. Both of these were "one nighters." So far The Tracking News has counted a total of four 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 25 April '13

Minor Planet Electronic Circulars

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

MPEC 2013-H45 - "20:51 UT" - Comet C/2013 H2 (Boattini)

MPEC 2013-H44 - "19:58 UT" - 2013 HT15

<< DOU on 25 Apr. '13 >>  MPEC 2013-H43 - "06:03 UT" - Daily Orbit Update

Observers  on 25 April '13

A total of 23 observers appear in today's MPECs.

CodeObserver / observatory
E23Arcadia Obs. in New South Wales, 1 in MPEC 2013-H45 -- C/2013 H2
H21Astronomical Research Obs. Westfield in Illinois, 1 in MPEC 2013-H45 -- C/2013 H2
C77Bernezzo Obs. in Italy, 1 in MPEC 2013-H43 -- 4034
703Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2013-H43 & 2013-H45 -- C/2013 H2, 2007 JZ20
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 2 in MPECs 2013-H44 & 2013-H45 -- 2013 HT15, C/2013 H2
821Cordoba Obs. Bosque Alegre Station in Argentina, 1 in MPEC 2013-H44 -- 2013 HT15
106Crni Vrh Obs. in Slovenia, 1 in MPEC 2013-H43 -- 8176
I70Edney House Obs., 2 in MPEC 2013-H43 -- 2009 UM3, 350988
C73Galati Obs. in Romania, 8 in MPEC 2013-H43 -- 2013 FY13, 2009 SQ104, 89958, 359592, 137170, 8176, 5645, 1627
695{Tomas Vorobjov in England via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2013-H45 -- C/2013 H2
W85LCOGT Cerro Tololo A in Chile, 1 in MPEC 2013-H44 -- 2013 HT15
J131National Schools Obs. via the Liverpool Telescope in the Canary Islands, 3 in MPEC 2013-H43 -- 2013 FG, 2013 EV108, 1999 GR6
560Madonna di Dossobuono Obs. in Italy, 2 in MPEC 2013-H43 -- 2009 SQ104, 2009 BL2
G96Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2013-H43 & 2013-H45 -- C/2013 H2, 2013 GX68, 2013 GE55, 206910, 154347, 3671
0892Oleksandr V. Shulga via Nikolaev Obs. in the Ukraine, 10 in MPEC 2013-H43 -- 2013 GK69, 2013 FY13, 2009 SQ104, 2009 BL2, 359592, 274855, 22771, 137199, 5645, 4034
F51Pan-STARRS 1 (PS1) in Hawaii, 6 in MPECs 2013-H43 & 2013-H44 -- 2013 HT15, 2011 SD173, 89958, 354332, 350988, 184990
204Schiaparelli Obs. in Italy, 8 in MPECs 2013-H43, 2013-H44 & 2013-H45 -- 2013 HT15, 2013 HQ, 2013 HO, C/2013 H2, 2013 GY7, 2013 GR66, 2013 GJ69, 2013 GE55
E12Siding Spring Survey (SSS) in New South Wales, 2 in MPECs 2013-H44 & 2013-H45 -- 2013 HT15, C/2013 H2
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2013-H43 -- 2013 ES89
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2013-H45 -- C/2013 H2
954Teide Obs. in the Canary Islands, 1 in MPEC 2013-H45 -- C/2013 H2
A48Verona Obs. in Italy, 2 in MPEC 2013-H43 -- 2013 FY13, 2009 SQ104
Q621program code 1 via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2013-H45 -- C/2013 H2
Q622program code 2 via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2013-H45 -- C/2013 H2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 25 April '13

At last check (NEODyS and JPL at 2359 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.

Chronology  on 25 April '13

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

2214Grabbed MPEC 2013-H45 - Comet C/2013 H2 (Boattini) - see above
2001Grabbed MPEC 2013-H44 - 2013 HT15 - see above
1424Generated Traffic Report
1422Grabbed MPEC 2013-H43 - Daily Orbit Update - see above