Hubble 2004 image of Fomalhaut debris ring 
Credit NASA/ESA & P. Kalas et al.

This 3.6-hour exposure of the Fomalhaut debris ring was made during May, August, and October of 2004 with the Hubble Space Telescope ACS camera. See news about this ring below. Credit: NASA, ESA, P. Kalas, J. Graham & M. Clampin.


Contents  on 16 June '07

WELCOME to A/CC's prototype daily news publication designed to be the viewing end of a planned autonomous 24-hour news service. The new tools and this publication format are working well enough now to share with readers. It is expected that this approach will require less time to maintain than our previous news and small asteroid pages, which were retired on May 14th. There's still more development ahead and there probably will be some glitches along the way, but this is what's needed to keep up with the increasing pace of minor-object news. The CRT page will be maintained separately for a little while longer, until all of this is working smoothly. And the CRT and small-asteroid ephemerides will be kept going.

Minor-Object News  on 16 June '07

Minor-Object Science  on 16 June '07

No science papers were available or prepared today.

NEOCP Activity  on 16 June '07

The MPC's NEO Confirmation Page has 2 listings: 2 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two updated listings. Of these, one was a "one nighter." Major News counted a total of eight objects listed on the NEOCP at some point on this day.

New MPECs  on 16 June '07

Minor Planet Electronic Circulars

There were six MPECs issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2007-M06 - "18:34 UT" - 2007 LW19


MPEC 2007-M05 - "18:31 UT" - 2007 LV19


MPEC 2007-M04 - "18:28 UT" - 2007 LU19


MPEC 2007-M03 - "18:22 UT" - 2007 LT19


<< DOU on 16 June '07 >>  MPEC 2007-M02 - "06:07 UT" - Daily Orbit Update


MPEC 2007-M01 - "02:10 UT" - 2007 LQ19

Observers  on 16 June '07

Eleven observing facilities appeared in this day's MPECs.

H55Astronomical Research Obs. in Illinois, 5 in MPEC 2007-M02 -- 2007 LS, 2007 HW3, 2006 YY2, 2006 XB, 2003 SJ170
703Catalina Sky Survey in Arizona, 4 in MPECs 2007-M03, 2007-M04, 2007-M05 & 2007-M06 -- 2007 LW19, 2007 LV19, 2007 LU19, 2007 LT19
H51Greiner Research Obs. in Wisconsin, 2 in MPEC 2007-M02 -- 2007 FV42, 2007 DF8
704LINEAR in New Mexico, 3 in MPECs 2007-M02 & 2007-M03 -- 2007 LT19, 154007, 6050
5682David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2007-M02 -- 2006 AQ
649Powell Obs. in Kansas, 5 in MPEC 2007-M02 -- 2007 LA15, 2007 LV8, 2007 LE, 2007 LA, 2007 JZ20
H36Sandlot Obs. in Kansas, 2 in MPECs 2007-M04 & 2007-M05 -- 2007 LV19, 2007 LU19
E12Siding Spring Survey in New South Wales, 13 in MPECs 2007-M01, 2007-M02, 2007-M04, 2007-M05 & 2007-M06 -- 2007 LW19, 2007 LV19, 2007 LU19, 2007 LV, 2007 LE, 152895, 89355, 42286, 22771, 5011, 3753, 1980, 2007 LQ19
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-M02 -- 2005 BG14
291Spacewatch 1.8m telescope in Arizona, 4 in MPEC 2007-M02 -- 2007 LB15, 2006 WN3, 2003 RL10, 1999 JR6
6735Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2007-M04, 2007-M05 & 2007-M06 -- 2007 LW19, 2007 LV19, 2007 LU19

Impact Risk Monitoring  on 16 June '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2357 UTC)
Note that the time horizon for JPL is 100 years from today and for NEODyS is usually the year 2080.
For the latest official risk assessments, 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
2007 LSNEODyS14292064-207829.46e-10-5.68-5.750NEODyS: "Based on 33 optical observations (of which 2 are rejected as outliers) from 2007/06/08.292 to 2007/06/15.243."
JPL14282064-210367.1e-09-5.03-5.430JPL: "Analysis based on 33 observations spanning 6.9507 days (2007-Jun-08.29124 to 2007-Jun-15.24189)." Diameter approximately 0.860 km. from mean, weighted H=18.0.
2007 LQ19NEODyS14292011-2079202.45e-07-2.45-2.660NEODyS: "Based on 7 optical observations (of which 0 are rejected as outliers) from 2007/06/13.788 to 2007/06/15.793."
JPL14282011-21061569.1e-07-2.09-2.420JPL: "Analysis based on 7 observations spanning 2.0053 days (2007-Jun-13.78733 to 2007-Jun-15.7926)." Diameter approximately 0.938 km. from mean, weighted H=17.8.
2007 LB15JPL14282020-21061561.7e-06-2.40-3.250JPL: "Analysis based on 18 observations spanning 2.0438 days (2007-Jun-13.3467 to 2007-Jun-15.39049)." Diameter approximately 0.598 km. from mean, weighted H=18.8.
NEODyS14282020-2080528.18e-07-2.55-3.230NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2007/06/13.347 to 2007/06/15.391."
2007 LA15JPL1428R E M O V E DJPL: Risk listing removed at 1011 UTC.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

For a list of all risk-rated objects recently in view, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from an 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" for more about all this.

Chronology  on 16 June '07

Times are UTC for when the items were noted by Major News.

2357Grabbed MPEC 2007-M03 - 2007 LT19 - see above
Grabbed MPEC 2007-M04 - 2007 LU19 - see above
Grabbed MPEC 2007-M05 - 2007 LV19 - see above
Grabbed MPEC 2007-M06 - 2007 LW19 - see above
1429Noted that NEODyS has updated its 2007 LS risk assessment - see above
1428Noted that JPL has removed 2007 LA15 as an impact risk - see above
Noted that JPL has updated its 2007 LB15 risk assessment - see above
Noted that NEODyS has updated its 2007 LB15 risk assessment - see above
Noted that JPL has posted 2007 LQ19 as an impact risk - see above
Noted that NEODyS has posted 2007 LQ19 as an impact risk - see above
Noted that JPL has updated its 2007 LS risk assessment - see above
Grabbed MPEC 2007-M02 - Daily Orbit Update - see above
0303Grabbed MPEC 2007-M01 - 2007 LQ19 - see above
Added link to news story, "Pluto Smaller Than Dwarf Planet Neighbor Eris, Study Finds"
Added link to news story, "Giant KBO Eris more Massive than Pluto"
Added link to news story, "Fifth Passive Payload Checkout"
Added link to news story, "Voyage to the Giant Asteroids"
Added link to news story, "NASA manned NEO mission needs robot test"
Added link to news story, "A scientific breakthrough as a by-product"
Added link to news story, "Hidden Planet Pushes Star's Ring a Billion Miles Off-Center"
Added link to news story, "It's Official: Eris Outweighs Pluto"
Added link to news story, "Dwarf Planet Outweighs Pluto"