6 Aug '07 Major News

Contents on 6 August '07

Minor-Object News -- four items
Minor-Object Science -- two papers
IAU Minor Planet Center
- NEOCP Activity
- New MPECs -- four MPECs
- Observers -- 20 observing facilities
Impact Risk Monitoring -- nothing to report
Chronology

Resources:

The latest news: framed access (best), RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site.

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 this year 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.

Minor-Object News on 6 August '07

"Meteorite Roads Show," Moose Jaw Times Herald 6 Aug. - Quote: "It was a quiet morning in the Western Development Museum for meteorite researchers Nathan Seon and Martin Beech, who had a table set up from 9 a.m. to 5 p.m. for anyone wanting to bring in a suspected meteorite... The Prairie Meteorite Search has been going on for seven years." {permalink}
"Collection falls into hands of meteorite gallery," Star-Telegram 6 Aug. - Quote: "[The] Monnig Meteorite Gallery at Texas Christian University ... recently acquired samples of 22 of the world's most coveted meteorites. The $70,000 haul comes from the Vaux meteorite collection at Philadelphia's Academy of Natural Sciences." {permalink}
"Expounding space," Huntsville Times 6 Aug. - Quote: "Does Pluto have water vapor ice? Is the surface of Mercury molten lead? Can asteroids be mined? Those questions are just a few NASA scientists hope to answer through a series of probes [from the] New Frontiers and Discovery Office, managed by Marshall Space Flight Center... The missions are geared to be low cost by NASA standards, ranging in price from $425 million to $700 million." {permalink}
"Indian government considers astronaut proposals," Flight International 6 Aug. - Quote: "The ISRO [Indian Space Research Organisation] robotic mission roadmap includes an asteroid fly-by mission or an impactor that would ram into a near-Earth object in the second half of the next decade." {permalink}

Minor-Object Science on 6 August '07

"The Formation and Evolution of Planetary Systems: Placing Our Solar System in Context with Spitzer" by Meyer, Michael R. with Lynne A. Hillenbrand, Dana Backman & 32 others, abstract & PDF at arXiv.org Jan. 2007 - Quote: "We provide an overview of the Spitzer Legacy Program 'Formation and Evolution of Planetary Systems' (FEPS)... With a sample of ~328 stars ranging in age from ~3 Myr to ~3 Gyr, we trace the evolution of circumstellar gas and dust from primordial planet-building stages in young circumstellar disks through to older collisionally generated debris disks. When completed, our program will help define the time scales over which terrestrial and gas giant planets are built, constrain the frequency of planetesimal collisions as a function of time, and establish the diversity of mature planetary architectures." {permalink}
"Robust Models for Phase Shifts in Accreting Binary Stars" by Cantrell, Andrew G. with Charles D. Bailyn, abstract & PDF at arXiv.org 6 Aug. - Quote: "Radial velocity studies of accreting binary stars commonly use accretion disk emission lines to determine the radial velocity of the primary star and therefore the mass ratio. These emission line radial velocity curves are often shifted in phase from the expected motion of the primary. These phase shifts cast doubt on the use of disk emission lines in the determination of mass ratios. We present a systematic study of phase shifts [and we present] another class of models, which we call 'measurement offset models.'" {permalink}

NEOCP Activity on 6 August '07

The MPC's NEO Confirmation Page is currently empty

The NEOCP is currently empty. There was one listing noted earlier today.

New MPECs on 6 August '07

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been four MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2007-P14 time-stamped "00:09 UT" - 2007 OR9 - see below
MPEC 2007-P15 time-stamped "06:06 UT" - Daily Orbit Update - see below
MPEC 2007-P16 time-stamped "13:29 UT" - 2007 PQ - see below
MPEC 2007-P17 time-stamped "21:02 UT" - Comet 46P/Wirtanen

MPEC 2007-P17 - "21:02 UT" - Comet 46P/Wirtanen

0046 46P/Wirtanen (Q=5.129 AU, TP=2008 Feb. 2.49577 TT) from Schiaparelli Obs. (Aug. 4.09p1 & 5.10-11p2) and Kambah Obs. (Aug. 6.74-76p3)

MPEC 2007-P16 - "13:29 UT" - 2007 PQ

K07P00Q 2007 PQ (H=20.5 ~269m) was discovered at 1054 UT 04 Aug. by the Siding Spring Survey (SSS), which observed it at Aug. 4.45-47p3, 4.56-57p5, and 5.40-41p3. The discovery was confirmed by Tiki Obs. (Aug. 5.21-25p3), North Ryde Obs. (Aug. 5.47-50p2), and Mt. John Obs. (Aug. 5.50p3 & 6.34-35p4).

<< DOU on 6 Aug. '07 >> MPEC 2007-P15 - "06:06 UT" - Daily Orbit Update

K07N05C 2007 NC5 (q=0.278 AU, Q=4.615 AU, arc=32 days, H=17.9 ~891m) from Stia Obs. (Aug. 4.86-87p3)
K07M06L 2007 ML6 (arc=45 days, H=18.6 ~645m) from Shenton Park Obs. (Aug. 4.86p3)
K07L32R 2007 LR32 (arc=72 days, H=17.2 ~1.23 km) from Frasso Sabino Obs. (Aug. 4.84-85p9), Atlante Obs. (Aug. 4.91p1 & 4.96-98p2), Santa Mama Obs. (Aug. 4.94-96p5), and Kiev Comet Station (Aug. 5.00-02p6)
K07L00F 2007 LF (arc=56 days, H=20.5 ~269m) from Shenton Park Obs. (June 20.66p3)
K07G03S 2007 GS3 (arc=115 days, H=19.3 ~467m) from Magdalena Ridge Obs. (MRO) (Aug. 4.46-47p4)
K07F01E 2007 FE1 (arc=141 days, H=18.8 ~589m) from Shenton Park Obs. (Aug. 4.66p1)
K07DA3T 2007 DT103 (arc=160 days, H=19.0 ~537m) from Kiev Comet Station (Aug. 3.99-03p9)
K07D08K 2007 DK8 (arc=169 days, H=19.0 ~537m) from Stia Obs. (Aug. 4.88-89p4)
K07C26K 2007 CK26 (arc=2 opp, H=19.0 ~537m) from Stia Obs. (Aug. 4.84-85p2 & 5.81p3) and Santa Mama Obs. (Aug. 4.86-91p8)
K05G22O 2005 GO22 (q=0.336 AU, arc=2 opp, H=18.7 ~616m) from Shenton Park Obs. (Aug. 4.68-69p3) and Stia Obs. (Aug. 4.90-91p4)
K03C11G 2003 CG11 (Q=4.491 AU, arc=2 opp, H=20.5 ~269m) from Shenton Park Obs. (Aug. 4.87p3)
K00Q07T 2000 QT7 (arc=2 opp, H=20.1 ~323m) from Shenton Park Obs. (Aug. 4.83-84p3) and LINEAR (Aug. 5.39-42p4)
87309 87309 2000 QP from MRO (July 31.43-45p5), Santa Mama Obs. (Aug. 4.90-93p5), and Atlante Obs. (Aug. 4.97-99p2)
86324 86324 1999 WA2 from Grosshabersdorf Obs. (Aug. 4.85p7)
85275 85275 1994 LY from Dresden Obs. (Aug. 4.85-86p5) and Ondrejov Obs. (Aug. 4.86-97p6)

MPEC 2007-P14 - "00:09 UT" - 2007 OR9

K07O09R 2007 OR9 (small asteroid, H=22.3 ~117m) was discovered at 0111 UT 23 July by Bergisch Gladbach Obs., which observed it at July 23.05-08p3 and 25.98-01p3. The discovery was confirmed by Great Shefford Obs. (Aug. 5.01-05p4 & 5.95-96p2) and KLENOT (Aug. 5.85-87p9).

Observers on 6 August '07

A total of 20 observing facilities appear in today's MPECs.

`J51`	Atlante Obs. in the Canary Islands, 2 in MPEC 2007-P15 -- 2007 LR32, 87309
`621`	Bergisch Gladbach Obs. in Germany, 1 in MPEC 2007-P14 -- 2007 OR9
`639`	Dresden Obs. in Germany, 1 in MPEC 2007-P15 -- 85275
`157`	Frasso Sabino Obs. in Italy, 1 in MPEC 2007-P15 -- 2007 LR32
`J95`	Great Shefford Obs. in England, 1 in MPEC 2007-P14 -- 2007 OR9
`A34`	Grosshabersdorf Obs. in Germany, 1 in MPEC 2007-P15 -- 86324
`246`	KLENOT in the Czech Republic, 1 in MPEC 2007-P14 -- 2007 OR9
`415`	Kambah Obs. in Australia, 1 in MPEC 2007-P17 -- 46
`585`	Kiev Comet Station in the Ukraine, 2 in MPEC 2007-P15 -- 2007 LR32, 2007 DT103
`704`	LINEAR in New Mexico, 1 in MPEC 2007-P15 -- 2000 QT7
`H01`	Magdalena Ridge Obs. in New Mexico, 2 in MPEC 2007-P15 -- 2007 GS3, 87309
`474`	Mt. John Obs. in New Zealand, 1 in MPEC 2007-P16 -- 2007 PQ
`423`	North Ryde Obs. in New South Wales, 1 in MPEC 2007-P16 -- 2007 PQ
`557`	Ondrejov Obs. in the Czech Republic, 1 in MPEC 2007-P15 -- 85275
`B38`	Santa Mama Obs. in Italy, 3 in MPEC 2007-P15 -- 2007 LR32, 2007 CK26, 87309
`204`	Schiaparelli Obs. in Italy, 1 in MPEC 2007-P17 -- 46
`D21`	Shenton Park Obs., 6 in MPEC 2007-P15 -- 2007 ML6, 2007 LF, 2007 FE1, 2005 GO22, 2003 CG11, 2000 QT7
`E12`	Siding Spring Survey in New South Wales, 1 in MPEC 2007-P16 -- 2007 PQ
`A78`	Stia Obs. in Italy, 4 in MPEC 2007-P15 -- 2007 NC5, 2007 DK8, 2007 CK26, 2005 GO22
`F85`	Tiki Obs. in Tahiti, 1 in MPEC 2007-P16 -- 2007 PQ

Impact Risk Monitoring on 6 August '07

At last check (NEODyS and JPL at 2358 UTC) there was no risk monitoring news to report yet today. See the CRT for activity in the last month.

Chronology on 6 August '07

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

2134	Grabbed MPEC 2007-P17 - Comet 46P/Wirtanen - see above
1840	Added link to news story, "Meteorite Roads Show"
1559	Added link to news story, "Expounding space" Added link to news story, "Indian government considers astronaut proposals" Added link to news story, "Collection falls into hands of meteorite gallery"
1429	Grabbed MPEC 2007-P15 - Daily Orbit Update - see above
1428	Grabbed MPEC 2007-P16 - 2007 PQ - see above The NEOCP has become empty
0306	Added MOS paper, "Robust Models for Phase Shifts in Accreting Binary Stars" - see above Added MOS paper, "The Formation and Evolution of Planetary Systems: Placing Our Solar System in Context with Spitzer" - see above
0021	Grabbed MPEC 2007-P14 - 2007 OR9 - see above

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