Contents  on 21 May '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 21 May '13

Five objects reported inside ten LD

Five visitors are reported to be in the neighborhood, within ten lunar distances (LD) from our planet today. Inside Earth's Hill sphere, 2013 KB is inbound from 3.68 to 3.18 LD and 2013 KT1 comes its closest to Earth this time around, reaching 3.19 LD at 1425 UT. Further away, 2013 KA is outbound from 4.50 to 5.55 LD and 2013 KQ1 from 8.28 to 9.10 LD, while 2013 KS1 is coming inward from 5.75 to 4.91 LD,.

Next known to be approaching is 2009 FE, which arrives inside ten LD on June 2nd.

This report was generated at 1331 UTC with follow-up in today's DOU MPEC for 2013 KT1 and 2009 FE, and for departed objects 2013 JF1 and risk-listed 2013 JM22.

Notes: Ten times the distance to the Moon (ten LD) has no astronomical significance but is a useful reporting boundary. Earth's Hill sphere (of gravitational influence) is estimated to extend out to around 3.89 LD. 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 21 May '13

The MPC's NEO Confirmation Page has 12 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had twelve objects listed. Of these, six were "one nighters." So far The Tracking News has counted a total of fifteen 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 21 May '13

Minor Planet Electronic Circulars

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

<< DOU on 21 May '13 >>  MPEC 2013-K32 - "06:05 UT" - Daily Orbit Update

MPEC 2013-K31 - "01:12 UT" - Comet C/2013 J6 (Catalina)

Observers  on 21 May '13

A total of 29 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 20 in MPECs 2013-K31 & 2013-K32 -- 2013 JX2, 2013 JT22, 2013 JO4, C/2013 J6, 2013 GU79, 2013 EU9, 2011 WU95, 2008 VN, 2006 HB, 2000 WL63, 85989, 53789, 359592, 354952, 163249, 141670, 137199, 11405, 7888, 5381
C77Bernezzo Obs. in Italy, 1 in MPEC 2013-K32 -- 4034
300Bisei Spaceguard Center in Japan, 1 in MPEC 2013-K31 -- C/2013 J6
703Catalina Sky Survey (CSS) in Arizona, 5 in MPECs 2013-K31 & 2013-K32 -- 2013 JQ22, C/2013 J6, 137170, 11405, 4034
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 9 in MPEC 2013-K32 -- 2013 JZ35, 2013 JR28, 2013 JR22, 2013 JF1, 2013 HJ19, 2013 GF, 2013 ES89, 2007 JF22, 2001 UX4
448Desert Moon Obs. in New Mexico, 1 in MPEC 2013-K31 -- C/2013 J6
C73Galati Obs. in Romania, 2 in MPEC 2013-K32 -- 2013 JB36, 2013 JA36
E89Geyserland Obs. in New Zealand, 1 in MPEC 2013-K32 -- 285263
D95Kurihara Obs. in Japan, 1 in MPEC 2013-K32 -- 137170
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2013-K31 -- C/2013 J6
711McDonald Obs. in Texas, 7 in MPECs 2013-K31 & 2013-K32 -- 2013 JX2, 2013 JM7, 2013 JH14, C/2013 J6, 2013 HS11, 2013 GY73, 2008 MB5
B67Mirasteilas Obs. in Switzerland, 1 in MPEC 2013-K31 -- C/2013 J6
118Modra Obs. in Slovakia, 1 in MPEC 2013-K31 -- C/2013 J6
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2013-K31 -- C/2013 J6
I41Palomar Transient Factory in southern California, 1 in MPEC 2013-K32 -- 354952
F51Pan-STARRS 1 (PS1) in Hawaii, 3 in MPEC 2013-K32 -- 2002 LT24, 85804, 54789
B49Paus Obs. in Spain, 1 in MPEC 2013-K31 -- C/2013 J6
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2013-K32 -- 163249
C95SATINO-1 in France, 2 in MPECs 2013-K31 & 2013-K32 -- 2013 JR28, C/2013 J6
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2013-K31 -- C/2013 J6
K33San Defendente Obs., 1 in MPEC 2013-K31 -- C/2013 J6
H36Sandlot Obs. in Kansas, 2 in MPECs 2013-K31 & 2013-K32 -- 2013 JO4, C/2013 J6
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2013-K31 -- C/2013 J6
033Schwarzschild Obs. in Germany, 2 in MPECs 2013-K31 & 2013-K32 -- 2013 JM22, C/2013 J6
E12Siding Spring Survey (SSS) in New South Wales, 18 in MPEC 2013-K32 -- 2013 KT1, 2013 JR22, 2013 GJ35, 2013 FD11, 2013 EU9, 2013 ES89, 2011 UW158, 2008 EM9, 96189, 88263, 53550, 285571, 276786, 234341, 22771, 163249, 3554, 1685
291Spacewatch 1.8m telescope in Arizona, 7 in MPEC 2013-K32 -- 2013 JT28, 2013 JN7, 2013 JH14, 2013 GY73, 2013 GX79, 2009 FE, 2000 EU70
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2013-K31 -- C/2013 J6
954Teide Obs. in the Canary Islands, 1 in MPEC 2013-K31 -- C/2013 J6
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-K31 -- C/2013 J6
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 21 May '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 21 May '13

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

1331Generated Traffic Report
1323Grabbed MPEC 2013-K32 - Daily Orbit Update - see above
0327Grabbed MPEC 2013-K31 - Comet C/2013 J6 (Catalina) - see above