Contents  on 2 June '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 2 June '13

One object reported inside ten LD

There is one object reported passing inside ten lunar distances (LD) of our planet today. 2009 FE enters ten LD, traveling from 10.56 to 9.90 LD.

This report was generated at 1414 UTC.



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 2 June '13

The MPC's NEO Confirmation Page has 11 listings

When last checked at 2316 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had eleven objects listed. Of these, two were "one nighters." So far The Tracking News has counted a total of 34 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 2 June '13

Minor Planet Electronic Circulars

As of last check at 2316 UTC, there have been eight MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2013-L09 - "11:40 UT" - 2013 KN6


MPEC 2013-L08 - "11:38 UT" - 2013 LB


MPEC 2013-L07 - "11:35 UT" - 2013 LA


MPEC 2013-L06 - "11:33 UT" - 2013 KM6


MPEC 2013-L05 - "11:31 UT" - 2013 KL6


MPEC 2013-L04 - "11:28 UT" - 2013 KK6


MPEC 2013-L03 - "11:25 UT" - 2013 KJ6


<< DOU on 2 June '13 >>  MPEC 2013-L02 - "06:05 UT" - Daily Orbit Update

Observers  on 2 June '13

A total of 43 observers appear in today's MPECs.

CodeObserver / observatory
H17Angel Peaks Obs. in Colorado, 1 in MPEC 2013-L09 -- 2013 KN6
E23Arcadia Obs. in New South Wales, 1 in MPEC 2013-L09 -- 2013 KN6
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2013-L02, 2013-L03 & 2013-L09 -- 2013 KN6, 2013 KJ6, 2013 JH14
Z95Astronomy for All Remote Obs., 1 in MPEC 2013-L09 -- 2013 KN6
X13Bosque Alegre Obs. Remote in Argentina, 1 in MPEC 2013-L09 -- 2013 KN6
B20Carmelita Obs. in Spain, 1 in MPEC 2013-L09 -- 2013 KN6
703Catalina Sky Survey (CSS) in Arizona, 3 in MPECs 2013-L02, 2013-L03 & 2013-L09 -- 2013 KN6, 2013 KJ6, 9950
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 6 in MPECs 2013-L02, 2013-L05, 2013-L06, 2013-L07 & 2013-L08 -- 2013 LB, 2013 LA, 2013 KM6, 2013 KL6, 281365, 153953
G58Chabot Obs. in northern California, 1 in MPEC 2013-L03 -- 2013 KJ6
I39Cruz del Sur Obs. in Argentina, 1 in MPEC 2013-L09 -- 2013 KN6
448Desert Moon Obs. in New Mexico, 5 in MPECs 2013-L02 & 2013-L09 -- 2013 KN6, 2013 EU9, 2010 GY6, 90373, 217837
G48Doc Greiner Research Obs. Rancho Hildalgo in New Mexico, 1 in MPEC 2013-L09 -- 2013 KN6
Z81Estrella de Mar Obs., 3 in MPEC 2013-L02 -- 2013 JB36, 137199, 7888
F659Marco Micheli in Hawaii via Faulkes Telescope North in Hawaii, 1 in MPEC 2013-L03 -- 2013 KJ6
E103program code 3 via Faulkes Telescope South in New South Wales, 1 in MPEC 2013-L09 -- 2013 KN6
C73Galati Obs. in Romania, 1 in MPEC 2013-L02 -- 163249
J95Great Shefford Obs. in England, 3 in MPECs 2013-L03, 2013-L04 & 2013-L06 -- 2013 KM6, 2013 KK6, 2013 KJ6
W85LCOGT Cerro Tololo A in Chile, 1 in MPEC 2013-L08 -- 2013 LB
V37LCOGT Fort Davis in Texas, 1 in MPEC 2013-L03 -- 2013 KJ6
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2013-L06 -- 2013 KM6
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2013-L02 -- 2013 GW79
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2013-L05 -- 2013 KL6
G96Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2013-L02, 2013-L04 & 2013-L09 -- 2013 KN6, 2013 KK6, 357005
C23Olmen Obs. in Belgium, 1 in MPEC 2013-L09 -- 2013 KN6
F51Pan-STARRS 1 (PS1) in Hawaii, 7 in MPECs 2013-L02, 2013-L05, 2013-L06, 2013-L07 & 2013-L08 -- 2013 LB, 2013 LA, 2013 KM6, 2013 KL6, 2013 KG6, 137911, 4660
B49Paus Obs. in Spain, 1 in MPEC 2013-L09 -- 2013 KN6
W71Rand II Obs., 3 in MPECs 2013-L02 & 2013-L09 -- 2013 KN6, 163696, 4034
D03Rantiga Obs., 1 in MPEC 2013-L09 -- 2013 KN6
V05Rusty Mtn. Obs., 1 in MPEC 2013-L09 -- 2013 KN6
C95SATINO-1 in France, 1 in MPEC 2013-L09 -- 2013 KN6
854Sabino Canyon Obs. in Arizona, 1 in MPEC 2013-L09 -- 2013 KN6
K33San Defendente Obs., 1 in MPEC 2013-L09 -- 2013 KN6
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2013-L09 -- 2013 KN6
G401program code 1 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2013-L09 -- 2013 KN6
J84South Obs. in England, 1 in MPEC 2013-L09 -- 2013 KN6
291Spacewatch 1.8m telescope in Arizona, 6 in MPECs 2013-L02, 2013-L03, 2013-L05 & 2013-L09 -- 2013 KN6, 2013 KL6, 2013 KJ6, 2013 HG20, 2013 CL118, 2013 BW76
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2013-L09 -- 2013 KN6
954Teide Obs. in the Canary Islands, 2 in MPECs 2013-L03 & 2013-L09 -- 2013 KN6, 2013 KJ6
B89Tiana Obs. in Spain, 1 in MPEC 2013-L09 -- 2013 KN6
718Wiggins Obs. in Utah, 3 in MPECs 2013-L02 & 2013-L09 -- 2013 KN6, 2013 JB36, 7888
J08Zonalunar Obs. in Spain, 1 in MPEC 2013-L09 -- 2013 KN6
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-L09 -- 2013 KN6
H06%Ernesto Guido in Italy via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2013-L09 -- 2013 KN6
I89iTelescope Obs. Nerpio in Spain, 1 in MPEC 2013-L09 -- 2013 KN6
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2013-L09 -- 2013 KN6
Q624program code 4 via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2013-L09 -- 2013 KN6
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 2 June '13

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2316 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 CLOMON2 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
2013 LBJPL Sentry16062022-2111669.7e-08-5.77-6.390JPL: "Analysis based on 11 observations spanning .84600 days (2013-Jun-01.37749 to 2013-Jun-02.223485)." Diameter approximately 0.087 km. from mean, weighted H=23.0.
2013 KG6JPL Sentry1409R E M O V E DJPL: Risk listing removed at 1150 UTC.

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 2 June '13

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

1606Noted that JPL Sentry has posted 2013 LB as an impact risk - see above
1414Generated Traffic Report
1409Noted that JPL Sentry has removed 2013 KG6 as an impact risk - see above
Grabbed MPEC 2013-L02 - Daily Orbit Update - see above
Grabbed MPEC 2013-L03 - 2013 KJ6 - see above
Grabbed MPEC 2013-L04 - 2013 KK6 - see above
Grabbed MPEC 2013-L05 - 2013 KL6 - see above
Grabbed MPEC 2013-L06 - 2013 KM6 - see above
Grabbed MPEC 2013-L07 - 2013 LA - see above
Grabbed MPEC 2013-L08 - 2013 LB - see above
Grabbed MPEC 2013-L09 - 2013 KN6 - see above