136199 Eris & its moon from HST 
30 Aug. 2006 Credit: NASA, ESA & M. Brown

From the Hubble Space Telescope on 30 August 2006 comes this image of 136199 Eris (2003 UB313) and its satellite, Dysnomia. See more about this work below. Credit: NASA, ESA & Mike Brown.


Contents  on 15 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 15 June '07

Minor-Object Science  on 15 June '07

NEOCP Activity  on 15 June '07

The MPC's NEO Confirmation Page has 8 listings: 4 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had four new and four updated listings. Of these, five were "one nighters." Major News counted a total of twelve objects listed on the NEOCP at some point on this day.

New MPECs  on 15 June '07

Minor Planet Electronic Circulars

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


MPEC 2007-L65 - "15:59 UT" - Observations of Comets


MPEC 2007-L64 - "15:38 UT" - Comet C/2007 K5 (Lovejoy)


MPEC 2007-L63 - "15:33 UT" - Comet C/2007 K4 (Gibbs)


MPEC 2007-L62 - "15:26 UT" - Comet C/2007 K3 (Siding Spring)


MPEC 2007-L61 - "15:21 UT" - Comet C/2007 K1 (Lemmon)


MPEC 2007-L60 - "15:17 UT" - Comet C/2007 JA21 (LINEAR)


MPEC 2007-L59 - "15:13 UT" - Comet P/2007 H3 (Garradd)


MPEC 2007-L58 - "15:10 UT" - Comet P/2007 H1 (McNaught)


<< DOU on 15 June '07 >>  MPEC 2007-L57 - "06:07 UT" - Daily Orbit Update

Observers  on 15 June '07

A total of 52 observing facilities appeared in this day's MPECs.

349Ageo Obs. in Japan, 7 in MPECs 2007-L58, 2007-L60 & 2007-L65 -- P/2006 HR30, C/2007 E2, C/2006 VZ13, C/2005 L3, 96, C/2007 JA21, P/2007 H1
H55Astronomical Research Obs. in Illinois, 12 in MPEC 2007-L57 -- 2007 LB15, 2007 LA15, 2007 KD2, 2007 JE40, 2007 GZ5, 2007 GC, 2007 EM, 2006 PW, 2006 HR29, 2005 CP, 2004 FN18, 1991 LH
D87Brooklyn Park Obs. in South Australia, 1 in MPEC 2007-L64 -- C/2007 K5
215Buchloe Obs. in Germany, 1 in MPEC 2007-L63 -- C/2007 K4
B20Carmelita Obs. in Spain, 3 in MPEC 2007-L65 -- C/2007 G1, C/2006 VZ13, C/2005 L3
703Catalina Sky Survey in Arizona, 4 in MPECs 2007-L57 & 2007-L65 -- C/2006 S2, 2006 KE89, 105140, 1866
693Catalina Station in Arizona, 6 in MPEC 2007-L65 -- P/2006 HR30, 182, 175, 162, 96, 14
850Cordell-Lorenz Obs. in Tennessee, 6 in MPECs 2007-L60, 2007-L61, 2007-L62, 2007-L63 & 2007-L65 -- C/2006 VZ13, C/2005 S4, C/2007 K4, C/2007 K3, C/2007 K1, C/2007 JA21
448Desert Moon Obs. in New Mexico, 3 in MPEC 2007-L57 -- 2007 LT, 2007 LL, 2007 DT103
808El Leoncito Obs. in Argentina, 3 in MPEC 2007-L65 -- C/2006 V1, C/2006 P1, 186
762Four Winds Obs. in Michigan, 2 in MPECs 2007-L57 & 2007-L65 -- C/2007 E2, 2006 KE89
683Goodricke-Pigott Obs. in Arizona, 1 in MPEC 2007-L57 -- 136818
H51Greiner Research Obs. in Wisconsin, 2 in MPEC 2007-L65 -- C/2006 VZ13, C/2005 L3
D88Hiratsuka Obs., 3 in MPEC 2007-L65 -- C/2007 E2, C/2003 WT42, C/2002 VQ94
750Hobbs Obs. in Wisconsin, 1 in MPEC 2007-L65 -- C/2007 E2
B19Iluro Obs. in Spain, 3 in MPEC 2007-L65 -- C/2007 G1, C/2006 VZ13, 96
246KLENOT in the Czech Republic, 1 in MPEC 2007-L63 -- C/2007 K4
415Kambah Obs. in Australia, 5 in MPECs 2007-L59, 2007-L63, 2007-L64 & 2007-L65 -- C/2006 OF2, 186, C/2007 K5, C/2007 K4, P/2007 H3
400Kitami Obs. in Japan, 1 in MPEC 2007-L65 -- C/2007 G1
704LINEAR in New Mexico, 1 in MPEC 2007-L57 -- 88263
699LONEOS in Arizona, 3 in MPECs 2007-L57 & 2007-L65 -- C/2007 G1, 2007 LV8, 4947
J76La Murta Obs. in Spain, 5 in MPEC 2007-L65 -- C/2007 E2, C/2006 VZ13, C/2006 V1, C/2005 L3, 96
J67La Puebla de Vallbona Obs. in Spain, 4 in MPEC 2007-L65 -- C/2007 E2, C/2006 V1, C/2003 WT42, 99
B05MPC code B05, 2 in MPEC 2007-L65 -- C/2006 VZ13, 96
J55MPC code J55, 1 in MPEC 2007-L65 -- C/2007 E2
232Masquefa Obs. in Spain, 4 in MPEC 2007-L65 -- C/2007 E2, C/2006 VZ13, C/2005 L3, 96
J46Montana Blanca Obs., 1 in MPEC 2007-L65 -- C/2007 E2
213Montcabre Obs. in Spain, 11 in MPECs 2007-L57, 2007-L60, 2007-L63 & 2007-L65 -- C/2007 G1, C/2007 E2, C/2006 VZ13, C/2005 L3, C/2003 WT42, C/2002 VQ94, 99, 96, C/2007 K4, C/2007 JA21, 2007 LF
474Mt. John Obs. in New Zealand, 3 in MPECs 2007-L59, 2007-L62 & 2007-L65 -- C/2006 K4, C/2007 K3, P/2007 H3
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2007-L65 -- 14
J78Murcia Obs. in Spain, 4 in MPEC 2007-L65 -- C/2007 G1, C/2007 E2, C/2005 L3, 96
A32Panker Obs. in Germany, 4 in MPEC 2007-L65 -- C/2007 G1, C/2007 E2, C/2006 VZ13, 96
H45Petit Jean Mtn. South Obs. in Arkansas, 5 in MPEC 2007-L57 -- 2007 LF, 2007 FV42, 2007 DZ40, 2004 ST9, 85275
J53Posadas Obs. in Spain, 4 in MPEC 2007-L65 -- C/2007 E2, C/2005 L3, C/2003 WT42, 96
649Powell Obs. in Kansas, 1 in MPEC 2007-L63 -- C/2007 K4
D29Purple Mtn. Obs. XuYi Station in China, 1 in MPEC 2007-L65 -- C/2005 L3
E26RAS Obs. Biggera Waters, 1 in MPEC 2007-L65 -- C/2006 P1
E03RAS Obs. Victoria, 1 in MPEC 2007-L65 -- C/2006 P1
428Reedy Creek Obs. in Queensland, 1 in MPEC 2007-L65 -- C/2006 OF2
473Remanzacco Obs. in Italy, 1 in MPEC 2007-L65 -- C/2007 E2
461SZTE Asteroid Program in Hungary, 2 in MPEC 2007-L65 -- C/2007 E2, C/2006 VZ13
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2007-L63 -- C/2007 K4
J49Santa Pola Obs. in Spain, 3 in MPEC 2007-L65 -- C/2007 E2, C/2003 WT42, C/2002 VQ94
E12Siding Spring Survey in New South Wales, 5 in MPECs 2007-L57, 2007-L58, 2007-L63 & 2007-L65 -- C/2006 V1, C/2006 K4, C/2007 K4, P/2007 H1, 2007 LV
510Siegen Obs. in Germany, 1 in MPEC 2007-L65 -- C/2007 E2
691Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2007-L57 & 2007-L65 -- 175, 162, 2004 LZ11, 3551
291Spacewatch 1.8m telescope in Arizona, 5 in MPEC 2007-L57 -- 2007 LS, 2007 EO, 2007 KG7, 2007 JX2, 2003 RX7
B30Szamotuly-Galowo Obs. in Poland, 4 in MPEC 2007-L65 -- C/2007 G1, C/2006 VZ13, C/2005 L3, 96
673Table Mtn. Obs. in southern California, 8 in MPECs 2007-L58, 2007-L60, 2007-L61, 2007-L63 & 2007-L65 -- C/2007 G1, C/2007 E2, C/2006 S2, C/2006 OF2, C/2007 K4, C/2007 K1, C/2007 JA21, P/2007 H1
6735Jim Young via Table Mtn. Obs. in southern California, 1 in MPEC 2007-L57 -- 2007 LA15
F85Tiki Obs. in Tahiti, 1 in MPEC 2007-L64 -- C/2007 K5
A03Torredembarra Obs., 1 in MPEC 2007-L65 -- C/2002 VQ94
J70Vega del Thader Obs. in Spain, 6 in MPECs 2007-L62 & 2007-L65 -- C/2006 V1, C/2005 S4, C/2005 L3, C/2003 WT42, 96, C/2007 K3

Impact Risk Monitoring  on 15 June '07

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 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 LSJPL21462064-210368.6e-09-5.00-5.570JPL: "Analysis based on 30 observations spanning 6.9507 days (2007-Jun-08.29124 to 2007-Jun-15.24189)." Diameter approximately 0.823 km. from mean, weighted H=18.1.
NEODyS09592064-207828.29e-10-5.78-5.850NEODyS: "Based on 30 optical observations (of which 0 are rejected as outliers) from 2007/06/08.292 to 2007/06/15.243."
2007 LB15NEODyS22472018-2080544.75e-07-2.90-3.620NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2007/06/13.347 to 2007/06/14.373."
JPL21462017-21063611.1e-06-2.61-3.260JPL: "Analysis based on 15 observations spanning 1.0257 days (2007-Jun-13.3467 to 2007-Jun-14.372365)." Diameter approximately 0.574 km. from mean, weighted H=18.9.
2007 LA15JPL11202063-2105142.7e-09-6.06-6.930JPL: "Analysis based on 28 observations spanning .92385 days (2007-Jun-13.31903 to 2007-Jun-14.242875)." Diameter approximately 0.500 km. from mean, weighted H=19.2.
NEODyS2146R E M O V E D

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 15 June '07

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

2247Noted that NEODyS has updated its 2007 LB15 risk assessment - see above
2147Grabbed MPEC 2007-L60 - Comet C/2007 JA21 (LINEAR) - see above
Grabbed MPEC 2007-L65 - Observations of Comets - see above
2146Noted that NEODyS has removed 2007 LA15 as an impact risk - see above
Noted that JPL has updated its 2007 LB15 risk assessment - see above
Noted that JPL has updated its 2007 LS risk assessment - see above
Grabbed MPEC 2007-L58 - Comet P/2007 H1 (McNaught) - see above
Grabbed MPEC 2007-L59 - Comet P/2007 H3 (Garradd) - see above
Grabbed MPEC 2007-L61 - Comet C/2007 K1 (Lemmon) - see above
Grabbed MPEC 2007-L62 - Comet C/2007 K3 (Siding Spring) - see above
Grabbed MPEC 2007-L63 - Comet C/2007 K4 (Gibbs) - see above
Grabbed MPEC 2007-L64 - Comet C/2007 K5 (Lovejoy) - see above
1120Noted that JPL has posted 2007 LA15 as an impact risk - see above
0959Noted that NEODyS has updated its 2007 LS risk assessment - see above
Grabbed MPEC 2007-L57 - Daily Orbit Update - see above
0229Added MOS paper, "Stability and Formation of the Resonant System HD 73526" - see above
Added MOS paper, "The Unusual Spectrum of Comet 96P/Machholz" - see above
Added link to news story, "Astronomers Measure Mass of Largest Dwarf Planet"
Added link to news story, "The Dwarf Planet Known as Eris is More Massive than Pluto, New Data Shows"
Added link to news story, "Dawn ELV Status Report"