Comet C/2007 N3 (Lulin) at discovery on July 11th by Lulin Minor Bodies Tracking (LIMIT, until today called "LUSS") using the 0.41-meter telescope at Lulin Observatory in Taiwan. The object is at magnitude R~19.1 traveling 0.37"/min. in PA 249.4 (toward the right). North is up. Credit: Quanzhi Ye and Chi Sheng Lin, used with permission. An update MPEC has been issued for this object today -- see below.
Contents on 19 July '07
- Minor-Object News -- twelve items
- Minor-Object Science -- six papers
- IAU Minor Planet Center
- NEOCP Activity -- four listings: 3 new, 1 updated
- New MPECs -- eighteen MPECs
- Observers -- 59 observing facilities
- Impact Risk Monitoring -- nothing to report
- Chronology
Resources:
- Consolidated Risk Tables - CRT page
- Ephemerides for risk-rated objects
- Ephemerides for small asteroids
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 19 July '07
- "Saturn's Old Moon Iapetus Retains Its Youthful Figure," NASA JPL 17 July - Quote: "Since [radioactive isotopes aluminum-26 and iron-60] decay at a known rate, this allowed scientists to ... calculate the age of Iapetus to be roughly 4.564 billion years old. Evidence for these same isotopes ... has been found in meteorites formed in the inner solar system. Therefore, there is a possibility of comparing the early chronology of the outer solar system with other objects in the inner solar system, such as Earth, Earth's moon and asteroids."
- "Saturn's 'Walnut Moon' Mystery Solved," National Geographic 18 July - Quote: "The mystery of Saturn's icy moon Iapetus -- which is shaped like a walnut when it should be more like a sphere -- has finally been figured out, scientists say."
- "The Walnut-Shaped Moon," Sky & Telescope 19 July - Quote: "[September 10th] Cassini will make its closest flyby of the moon yet -- just 1,000 kilometers (620 miles) above the surface."
- "Ice Volcanoes Everywhere?" Sky & Telescope 19 July - Quote: "[The astronomer] group touts 'the best evidence yet for the existence of ammonia hydrates on Kuiper Belt objects.' Just like on Earth, ammonia acts as antifreeze and depresses the melting point of the water."
- "'Water on Pluto moon'," Sydney Morning Herald 19 July - Quote: "As a planet, Pluto was a real dog. Now scientists say there may be something truly fishy about one the little world's three known moons... Charon may have an underground ocean of liquid water, triggering speculation it could harbour marine life."
- "Ice Crystals on Pluto's Moon Charon Suggest a Surface Constantly Refreshed by Ammonia-Water Volcanoes," Planetary Soc. 19 July - Quote: "Cryovolcanism requires an internal ocean. How is it possible that a world as cold and small as Charon could have an internal ocean?"
- "'Blue Needle' Presents New Challenge for Theorists," Keck Observatory 19 July - Quote: "While protoplanetary disks around young stars are thought to be the basis for the birth of planets, debris disks such as the one around HD 15115 are believed to be made up of the remnants of planet production. They are also similar to the Kuiper Belt, the region of our solar system extending from and beyond the orbit of Neptune that contains numerous objects made up of rock and ice."
- "Astronomers Find Highly Elliptical Disk Around Young Star," HubbleSite 19 July - Quote: "Astronomers using the Hubble Space Telescope and W.M. Keck Observatory have found a lopsided debris disk around a young star known as HD 15115... Astronomers think the disk's odd imbalanced look is caused by dust following a highly elliptical orbit about the star [possibly] caused by the gravity of planets sweeping up debris in the disk or by the gravity of a nearby star... This discovery is consistent with models for planetary upheavals in our own solar system, where Neptune may have originally formed between Saturn and Uranus."
- "Astronomers Find 'Blue Needle' in Space," Space.com 19 July - Quote: "The disk around HD 15115 begins at about the same distance from its star that the Kuiper Belt does from our sun, but extends about 10 times further to at least 550 AU. One AU is equal to the distance between Earth and the sun."
- "Odd form of space debris needles Keck scientists," Honolulu Star-Bulletin 19 July - Quote: "About 100 other stars are known to have discs, but the blue needle is 'far more asymmetrical' than any of its companions in a nearby collection called the Beta Pictoris Moving Group... The loose group is almost next door in astronomical terms, 33 to 163 light-years away in the constellation Pictor"
- Quebec meteor: SpaceWeather.com is reporting today that "On July 17th, astronomer Marjorie Dessureault of Quebec's Observatoire du Cegep de Trois-Rivieres witnessed a 'huge meteor passing through Bootes and the Big Dipper.'" Anyone who also saw this event is requested to contact the observatory.
- "Wood chipper apparently strikes again," AP at Bloomington Pantagraph 19 July - Quote: "A hunk of metal that crashed through the roof of a Bayonne, N.J. , home had NASA and Federal Aviation Administration officials scratching their heads... It was part of a commercial wood chipper. The same part from another wood chipper's grinder had caused similar confusion last year ... in New Jersey."
Minor-Object Science on 19 July '07
- "Multi-Wavelength Imaging of Young Stellar Object Disks: Toward an Understanding of Disk Structure and Dust Evolution" by Watson, Alan M. with Karl R. Stapelfeldt, Kenneth Wood & Francois Menard, abstract & PDF at arXiv.org 19 July - Quote: "Many new disks have been discovered or imaged in scattered light, and improved instrumentation and observing techniques have led to better disk images at optical, near-infrared, and thermal-infrared wavelengths. Multi-wavelength datasets are particularly valuable, as dust particle properties have wavelength dependencies. Modeling the changes in scattered-light images with wavelength gives direct information on the dust properties. This has now been done for several different disks. The results indicate that modest grain growth has taken place in some of these systems."
- "Origin of the Metallicity Dependence of Exoplanet Host Stars in the Protoplanetary Disk Mass Distribution" by Wyatt, M.C. with C.J. Clarke & J.S. Greaves, abstract & PDF at arXiv.org 19 July - Quote: "We introduce a simple model in which detectable planets form when the mass of solids in the protoplanetary disk, Ms, exceeds a critical value... [Combining] this model with one in which the evolution of a star's debris disk is also influenced by the solid mass in its protoplanetary disk, results in the prediction that debris disks detected around stars with planets should be more infrared luminous than those around stars without planets in tentative agreement with recent observations."
- "The effect of type I migration on the formation of terrestrial planets in hot-Jupiter systems" by Fogg, Martyn J. with Richard P. Nelson, abstract & PDF at arXiv.org 19 July - Quote: "Our previous models of a giant planet migrating through an inner protoplanet/planetesimal disk find that the giant shepherds a portion of the material it encounters into interior orbits, whilst scattering the rest into external orbits. Scattering tends to dominate, leaving behind abundant material that can accrete into terrestrial planets... Conclusions: Water-rich terrestrial planets can form in the habitable zones of hot-Jupiter systems and hot-Earths and hot-Neptunes may also be present."
- "On the migration of protoplanets embedded in circumbinary disks" by Pierens, Arnaud with Richard P. Nelson, abstract & PDF at arXiv.org 19 July - Quote: "We present the results of hydrodynamical simulations of low mass protoplanets embedded in circumbinary accretion disks... Halting of migration occurs in a region of long-term stability, suggesting that low mass circumbinary planets may be common, and that gas giant circumbinary planets should be able to form in circumbinary disks."
- "Observations of B335 in the Millimeter Continuum and the 226 GHz H2CO Line" by Choi, Minho, abstract & PDF at arXiv.org 19 July - Quote: "The protostar B335 was observed in the 1.3 mm continuum and in the H2CO 312-211 line with an angular resolution of about 8 arcsec."
- "Dynamics of Dense Cores in the Perseus Molecular Cloud" by Kirk, Helen with Doug Johnstone & Mario Tafalla, abstract & PDF at arXiv.org 19 July - Quote: "We survey the kinematics of over one hundred and fifty candidate (and potentially star-forming) dense cores in the Perseus molecular cloud with pointed N2H+(1-0) and simultaneous C18O(2-1) observations."
NEOCP Activity on 19 July '07
The MPC's NEO Confirmation Page has 4 listings: 3 new, 1 updated
When last checked at 2356 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had three new and one updated listings. All of these were "one nighters." So far Major News has counted a total of nine objects listed on the NEOCP at some point today.
New MPECs on 19 July '07
Minor Planet Electronic Circulars
As of last check at 2357 UTC, there have been eighteen MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2007-O15 time-stamped "06:06 UT" - Daily Orbit Update - see below
- MPEC 2007-O16 time-stamped "14:05 UT" - 2007 NC5 - see below
- MPEC 2007-O17 time-stamped "14:11 UT" - 2007 OX - see below
- MPEC 2007-O18 time-stamped "14:14 UT" - 2007 OY - see below
- MPEC 2007-O19 time-stamped "15:04 UT" - Comet C/2006 S3 (LONEOS) - see below
- MPEC 2007-O20 time-stamped "15:10 UT" - Comet P/2007 H1 (McNaught) - see below
- MPEC 2007-O21 time-stamped "15:15 UT" - Comet P/2007 H3 (Garradd) - see below
- MPEC 2007-O22 time-stamped "15:19 UT" - Comet C/2007 JA21 (LINEAR) - see below
- MPEC 2007-O23 time-stamped "15:24 UT" - Comet C/2007 K1 (Lemmon) - see below
- MPEC 2007-O24 time-stamped "15:30 UT" - Comet C/2007 K4 (Gibbs) - see below
- MPEC 2007-O25 time-stamped "15:36 UT" - Comet C/2007 K5 (Lovejoy) - see below
- MPEC 2007-O26 time-stamped "15:42 UT" - Comet C/2007 M1 (McNaught) - see below
- MPEC 2007-O27 time-stamped "15:49 UT" - Comet C/2007 M2 (Catalina) - see below
- MPEC 2007-O28 time-stamped "15:53 UT" - Comet C/2007 M3 (LINEAR) - see below
- MPEC 2007-O29 time-stamped "16:00 UT" - Comet P/2007 N1 (McNaught) - see below
- MPEC 2007-O30 time-stamped "16:07 UT" - Comet C/2007 N3 (Lulin) - see below
- MPEC 2007-O31 time-stamped "16:11 UT" - Comet C/2007 O1 (LINEAR) - see below
- MPEC 2007-O32 time-stamped "16:33 UT" - Observations of Comets
MPEC 2007-O32 - "16:33 UT" - Observations of Comets
- PK07N020 P/2007 N2 from LINEAR (July 15.23-27p5), Zvezdno Obshtestvo Obs. (July 16.00-02p4 & 16.87-88p5), Farra d'Isonzo Obs. (July 16.00-01p2), Schiaparelli Obs. (July 16.04-05p2), Sandlot Obs. (July 16.14-18p3), Table Mtn. Obs. (July 16.16-19p4, 17.19-21p4, 18.17-21p4 & 19.21-23p4), Remanzacco Obs. (July 16.90p3), Hradec Kralove Obs. (July 16.93-94p5, 17.90-91p5 & 18.90-91p5), Great Shefford Obs. (July 16.95p3), Cordell-Lorenz Obs. (July 17.16p1, 17.22p1 & 19.17-25p6), Kiev Comet Station (July 17.94-96p6), Irmtraut Obs. (July 17.99-01p2), Kambah Obs. (July 18.57-58p3), Montcabre Obs. (July 18.86-87p3), and RAS Obs. Mayhill (July 19.33p2)
- CK07G010 C/2007 G1 (LINEAR) from Vega del Thader Obs. (July 8.87-88p7 & 13.97-98p6), New Millennium Obs. (July 12.88-98p14, 13.88-97p13 & 14.88-98p13), Posadas Obs. (July 12.96-98p3 & 15.02-04p3), the Catalina Sky Survey (CSS) (July 13.27-28p4), Gualba Obs. (July 13.90-92p4), Montcabre Obs. (July 13.90-91p3), Rodeno Obs. (July 13.93-94p3), Buchloe Obs. (July 13.95p3), Masquefa Obs. (July 14.00-01p3), Herne Obs. (July 14.03-04p2), Masia Cal Maciarol Modul 1 (MCM1) (July 14.07p2), Hradec Kralove Obs. (July 14.88-89p3, 16.86-87p5 & 18.88-89p5), La Puebla de Vallbona Obs. (Vallbona Obs.) (July 14.91-92p3), Chante-Perdrix Obs. (July 15.87-89p4), Vitebsk Obs. (July 15.88p2), Nazaret Obs. (July 15.93-95p3), Atlante Obs. (July 15.96-01p3 & 16.92p1), RAS Obs. Macabim (July 16.86-88p2), Corbera Obs. (July 17.94-95p4 & 18.96-97p2), and LINEAR (July 18.22-26p5)
- CK07F010 C/2007 F1 (LONEOS) from Buchloe Obs. (June 7.89p1) and Schiaparelli Obs. (July 7.87-90p2)
- CK07E020 C/2007 E2 (Lovejoy) from Herne Obs. (July 13.92-93p2), Buchloe Obs. (July 13.94p3), Klet Obs. (July 14.90p7), Montcabre Obs. (July 14.94-95p3), Masquefa Obs. (July 14.95-96p3), Posadas Obs. (July 14.97-98p2), Petit Jean Mtn. South Obs. (PJMSO) (July 15.15p5), Schiaparelli Obs. (July 15.94p1 & 16.03p1), and Corbera Obs. (July 17.92p1)
- CK06V13Z C/2006 VZ13 (LINEAR) from Mackay Obs. (July 6.93-95p20, 7.94-95p10, 14.96-00p12 & 15.93-98p24), Remanzacco Obs. (July 12.86p1, 15.84-88p3 & 16.85-86p2), Posadas Obs. (July 12.93-94p3 & 13.96-97p3), Mt. Cabreja Obs. (July 12.99-03p3 & 13.92-96p3), Gualba Obs. (July 13.86-87p6), Vega del Thader Obs. (July 13.87-88p20), Pla D'Arguines Obs. (July 13.87p4), Rodeno Obs. (July 13.88-89p3 & 14.87p3), Montcabre Obs. (July 13.93p3, 14.91-92p3 & 18.94p3), Atlante Obs. (July 13.94-95p3, 15.90-97p3 & 16.93-94p3), Buchloe Obs. (July 13.94p3), Herne Obs. (July 13.94-97p2), MCM1 (July 13.96-97p3 & 14.99p3), Masquefa Obs. (July 13.98-99p3 & 14.92p3), PJMSO (July 14.16p5 & 15.14p6), Mataro Obs. (July 14.86-88p4), Vallbona Obs. (July 14.89p3), Vitebsk Obs. (July 14.91p3), Monte Deva Obs. (July 14.93p2), RAS Mayhill (July 15.18-19p2), Cordell-Lorenz Obs. (July 15.19-26p7, 16.16-18p2 & 17.14-19p3), Irmtraut Obs. (July 15.99p3), Ceccano Obs. (July 16.85p3), Modra Obs. (July 16.88p7), Corbera Obs. (July 16.95-96p5 & 17.90p5), Kiev Comet Station (July 17.84-86p5), and Guadarrama Obs. (July 17.89p3)
- CK06S020 C/2006 S2 (LINEAR) from Mt. John Obs. (July 13.67p3), Buchloe Obs. (July 13.99p3), the Siding Spring Survey (SSS) (July 15.56p1), and LINEAR (July 16.24-29p5)
- CK06O02F C/2006 OF2 (Broughton) from Linceo Obs. (July 13.05-07p3), Rodeno Obs. (July 13.99-01p3 & 15.03-05p3), Schiaparelli Obs. (July 14.01-04p2), Buchloe Obs. (July 14.02p3), Masquefa Obs. (July 14.05-07p3 & 15.07-09p3), Hradec Kralove Obs. (July 15.01-02p5), Iluro Obs. (July 15.04-05p3), MCM1 (July 15.07-09p3), Atlante Obs. (July 16.03p1), Irmtraut Obs. (July 16.04-06p3), and Chante-Perdrix Obs. (July 16.95-96p3)
- CK06H51W C/2006 HW51 (Siding Spring) from Piszkesteto Sta. (July 7.98-99p4) and Schiaparelli Obs. (July 14.03p1)
- CK05S040 C/2005 S4 (McNaught) from New Millennium Obs. (July 13.00-08p10 & 13.00-05p7) and LINEAR (July 16.23-26p4)
- CK05L030 C/2005 L3 (McNaught) from New Millennium Obs. (July 12.89-99p14 & 13.92-98p8), Linceo Obs. (July 12.90-94p3), Masquefa Obs. (July 13.96-97p3), Rodeno Obs. (July 13.96-97p3 & 14.88-89p3), Buchloe Obs. (July 13.97p3), Herne Obs. (July 13.00-01p2), Posadas Obs. (July 14.01-03p3), Vega del Thader Obs. (July 14.02-03p5), Hradec Kralove Obs. (July 14.90-91p5, 16.88p5, 17.88-89p5 & 18.89-90p5), MCM1 (July 15.02p3), Vitebsk Obs. (July 15.91p2), Remanzacco Obs. (July 15.93-95p2), Atlante Obs. (July 15.93-95p2 & 15.00p1), Zvezdno Obshtestvo Obs. (July 16.84-85p3), Corbera Obs. (July 16.00p5, 17.98-99p5 & 18.98-99p7), Irmtraut Obs. (July 17.94-97p4), and Southern TIE (SoTIE) (July 18.22p1)
- CK04D010 C/2004 D1 (NEAT) from Torredembarra Obs. (May 25.01-03p3), CSS (May 25.25-28p4), and Schiaparelli Obs. (July 7.96p1)
- CK04B010 C/2004 B1 (LINEAR) from Posadas Obs. (July 13.92-95p2) and PJMSO (July 15.13p4)
- CK02V94Q C/2002 VQ94 (LINEAR) from Masquefa Obs. (July 7.86-87p3), Schiaparelli Obs. (July 7.99p1), and MCM1 (July 13.93-94p3)
- 0125 125P/Spacewatch from Schiaparelli Obs. (July 7.88p1 & 7.93p1) and Buchloe Obs. (July 13.88p3)
- 0099 99P/Kowal 1 from Schiaparelli Obs. (July 7.86p1), SSS (July 11.47p1), and Buchloe Obs. (July 13.89p3)
- 0096 96P/Machholz 1 from Schiaparelli Obs. (July 7.87-89p2), Linceo Obs. (July 12.89-92p2), Posadas Obs. (July 12.00-01p3), Masquefa Obs. (July 13.94-95p3), Buchloe Obs. (July 13.95-96p3), MCM1 (July 13.99-00p3), Vitebsk Obs. (July 14.88-89p2), Terres Blanches Obs. (July 14.91p1), Vallbona Obs. (July 14.93p3), and LINEAR (July 15.22-27p5)
- 0093 93P/Lovas 1 from LINEAR (July 13.40-42p3 & 17.37-41p4), Vitebsk Obs. (July 14.96p1, 15.95-97p4 & 16.95p1), and Crimean Astrophysical Obs. (CrAO) (July 15.00-02p5)
- 0050 50P/Arend from RAS Mayhill (July 16.42-43p2 & 17.39-41p2)
- 0017 17P/Holmes from Vitebsk Obs. (July 16.97p2) and LINEAR (July 18.37-39p3)
- 0008 8P/Tuttle from Montcabre Obs. (July 15.06-09p3), CAST Obs. (July 17.89p1), and Remanzacco Obs. (July 17.00p1 & 18.04p1)
MPEC 2007-O31 - "16:11 UT" - Comet C/2007 O1 (LINEAR)
- CK07O010 C/2007 O1 (i=24.3°, q=2.875 AU, TP=2007 June 7.100 TT) from Farpoint Obs. (July 18.17-18p3), LINEAR (July 18.21-25p9), Table Mtn. Obs. (July 18.28-29p4 & 19.24-27p4), Kambah Obs. (July 18.71p2), Montcabre Obs. (July 18.89-90p3), Schiaparelli Obs. (July 19.03-04p2), and Cordell-Lorenz Obs. (July 19.19p1 & 19.24-26p2)
MPEC 2007-O30 - "16:07 UT" - Comet C/2007 N3 (Lulin)
- CK07N030 C/2007 N3 (Lulin) (i=178.4°, q=1.243 AU, TP=2009 Jan. 14.952 TT) from Table Mtn. Obs. (July 18.36-39p4 & 19.42-44p4), Kambah Obs. (July 18.74-75p2), and Cordell-Lorenz Obs. (July 19.30-35p3)
MPEC 2007-O29 - "16:00 UT" - Comet P/2007 N1 (McNaught)
- PK07N010 C/2007 N1 (McNaught) (q=2.024 AU, Q=4.496 AU, TP=2007 Sept. 17.811 TT) from Schiaparelli Obs. (July 16.09p2) and Table Mtn. Obs. (July 16.46-48p4, 17.45-47p4, 18.45-47p4 & 19.45-47p4)
MPEC 2007-O28 - "15:53 UT" - Comet C/2007 M3 (LINEAR)
- CK07M030 C/2007 M3 (LINEAR) (i=161.8°, q=3.474 AU, TP=2007 Sept. 3.890 TT) from New Millennium Obs. (July 12.95-03p13 & 13.92-02p14), Linceo Obs. (July 12.98-99p2), Montcabre Obs. (July 13.88-89p3 & 17.88-89p3), Schiaparelli Obs. (July 13.95p1 & 14.02p1), Buchloe Obs. (July 13.98p3), Atlante Obs. (July 13.98-99p3 & 16.05-07p3), Masquefa Obs. (July 14.03-04p3), Posadas Obs. (July 14.04-06p3 & 15.07-08p3), MCM1 (July 14.10-11p3), Chante-Perdrix Obs. (July 14.86p3), Hradec Kralove Obs. (July 14.91-93p5, 17.91-93p5 & 18.91-92p5), Cordell-Lorenz Obs. (July 15.21-23p2, 16.17p1 & 16.21p1), Vitebsk Obs. (July 16.93p2), Table Mtn. Obs. (July 17.33-34p2), Kiev Comet Station (July 17.88-92p6), Zvezdno Obshtestvo Obs. (July 17.00-01p3), and Kambah Obs. (July 18.61-62p2)
MPEC 2007-O27 - "15:49 UT" - Comet C/2007 M2 (Catalina)
- CK07M020 C/2007 M2 (Catalina) (i=80.9°, q=3.541 AU, TP=2008 Dec. 8.412 TT) from Schiaparelli Obs. (July 7.94p1 & 13.93-97p2), Buchloe Obs. (July 13.92p1), and Chante-Perdrix Obs. (July 14.88-89p3)
MPEC 2007-O26 - "15:42 UT" - Comet C/2007 M1 (McNaught)
- CK07M010 C/2007 M1 (McNaught) (i=139.7°, q=7.459 AU, TP=2008 Aug. 16.595 TT) from Andrushivka Obs. (July 9.90-92p6), Buchloe Obs. (July 14.01p3), Chante-Perdrix Obs. (July 14.92-93p2), and Kiev Comet Station (July 17.99p1)
MPEC 2007-O25 - "15:36 UT" - Comet C/2007 K5 (Lovejoy)
- CK07K050 C/2007 K5 (Lovejoy) (i=64.9°, Q=96.161 AU, TP=2007 May 1.9520 TT) from Mt. John Obs. (July 11.32p3 & 18.29-30p4) and Kambah Obs. (July 14.35-37p3)
MPEC 2007-O24 - "15:30 UT" - Comet C/2007 K4 (Gibbs)
- CK07K040 C/2007 K4 (Gibbs) (i=98.6°, q=3.527 AU, TP=2007 May 3.8051 TT) from Mt. John Obs. (July 11.37-38p4 & 18.40-42p3) and Kambah Obs. (July 11.58p1)
MPEC 2007-O23 - "15:24 UT" - Comet C/2007 K1 (Lemmon)
- CK07K010 C/2007 K1 (Lemmon) (i=108.4°, q=9.237 AU, Q=796.294 AU, TP=2007 May 6.48348 TT) from Cordell-Lorenz Obs. (June 17.16-19p3 & 17.28-29p2), Schiaparelli Obs. (July 13.04p1), and Table Mtn. Obs. (July 17.23-26p4)
MPEC 2007-O22 - "15:19 UT" - Comet C/2007 JA21 (LINEAR)
- CK07J21A C/2007 JA21 (LINEAR) (i=89.8°, q=5.369 AU, TP=2006 Nov. 14.66428 TT) from Chante-Perdrix Obs. (July 13.87-89p5) and Table Mtn. Obs. (July 17.27-29p4)
MPEC 2007-O21 - "15:15 UT" - Comet P/2007 H3 (Garradd)
- PK07H030 P/2007 H3 (Garradd) (q=1.829 AU, Q=5.174 AU, TP=2007 Aug. 15.32802 TT) from SSS (June 16.45p1) and Kambah Obs. (July 14.41p2)
MPEC 2007-O20 - "15:10 UT" - Comet P/2007 H1 (McNaught)
- PK07H010 P/2007 H1 (McNaught) (q=2.281 AU, Q=5.053 AU, TP=2007 Aug. 17.64845 TT) from Mt. John Obs. (July 13.73-74p3), Herne Obs. (July 14.07-08p2), Masquefa Obs. (July 14.09-10p3), Hradec Kralove Obs. (July 15.03-04p5), Iluro Obs. (July 15.14p3), LINEAR (July 16.39-43p5), Zvezdno Obshtestvo Obs. (July 17.06-07p3), and Kambah Obs. (July 18.77-78p2)
MPEC 2007-O19 - "15:04 UT" - Comet C/2006 S3 (LONEOS)
- CK06S030 C/2006 S3 (LONEOS) (i=166.0°, q=5.127 AU, TP=2012 Apr. 14.47457 TT) from Buchloe Obs. (July 14.03p1) and Frasso Sabino Obs. (July 15.03p1, 15.07p1 & 16.03-07p2)
MPEC 2007-O18 - "14:14 UT" - 2007 OY
- K07O00Y 2007 OY (H=20.8 ~234m) was discovered at 1453 UT 18 July by SSS, which observed it at July 18.62-65p4, 18.71p4, and 18.78-82p6. The discovery was confirmed by Mt. John Obs. (July 19.49p3).
MPEC 2007-O17 - "14:11 UT" - 2007 OX
- K07O00X 2007 OX (H=21.2 ~195m) was discovered at 0908 UT 18 July by the Mt. Lemmon Survey (MLS), which observed it at July 18.38-46p10 and 19.41-42p7. The discovery was confirmed by Schiaparelli Obs. (July 18.97-98p3), Remanzacco Obs. (July 19.01-02p3), Great Shefford Obs. (July 19.06-07p2), Jim Young via Table Mtn. Obs. (July 19.38-40p4), and Mt. John Obs. (July 19.51p4).
MPEC 2007-O16 - "14:05 UT" - 2007 NC5
- K07N05C 2007 NC5 (q=0.284 AU, Q=4.376 AU, H=18.0 ~851m) was discovered at 0950 UT 04 July by MLS, which observed it at July 4.41-46p8 and 19.43p4. The discovery was confirmed by CSS (July 18.38-44p6), Wildberg Obs. (July 18.94p4), Farra d'Isonzo Obs. (July 18.96-98p2), Remanzacco Obs. (July 18.98-99p4), Schiaparelli Obs. (July 19.05-06p3), Great Shefford Obs. (July 19.07-08p3), Robert Hutsebaut via RAS Obs. Mayhill (July 19.35-36p3), Cordell-Lorenz Obs. (July 19.38-39p2), and Young/Table Mtn. (July 19.43-45p4).
<< DOU on 19 July '07 >> MPEC 2007-O15 - "06:06 UT" - Daily Orbit Update
- Observations of almost-small asteroids (21.7<H<=22.0)
- K07N01L 2007 NL1 (arc=7 days, H=22.0 ~135m) from Great Shefford Obs. (July 19.09p2)
- Observations of other objects
- K07N04S 2007 NS4 (arc=3 days, H=19.2 ~490m) from SSS (July 18.54-55p2)
- K07M24B 2007 MB24 (i=47.7°, arc=25 days, H=18.4 ~708m) from Sogel Obs. (July 18.95-98p3)
- K07F01K 2007 FK1 (arc=123 days, H=20.2 ~309m) from MLS (July 18.36-37p4)
- K07DA3T 2007 DT103 (arc=143 days, H=18.9 ~562m) from Schiaparelli Obs. (July 18.89-90p3)
- K03H02F 2003 HF2 (q=0.361 AU, arc=4 opp, H=19.6 ~407m) from Schiaparelli Obs. (July 18.99p5)
- 52750 52750 1998 KK17 from CSS (July 18.28-30p4)
- 24443 24443 2000 OG from Red Barn Obs. (July 19.14-16p5)
Observers on 19 July '07
A total of 59 observing facilities appear in today's MPECs.
| A50 | Andrushivka Obs. in the Ukraine, 1 in MPEC 2007-O26 -- C/2007 M1 |
| J51 | Atlante Obs. in the Canary Islands, 5 in MPECs 2007-O28 & 2007-O32 -- C/2007 G1, C/2006 VZ13, C/2006 OF2, C/2005 L3, C/2007 M3 |
| 215 | Buchloe Obs. in Germany, 14 in MPECs 2007-O19, 2007-O26, 2007-O27, 2007-O28 & 2007-O32 -- C/2007 G1, C/2007 F1, C/2007 E2, C/2006 VZ13, C/2006 S2, C/2006 OF2, C/2005 L3, 125, 99, 96, C/2007 M3, C/2007 M2, C/2007 M1, C/2006 S3 |
| 235 | CAST Obs., 1 in MPEC 2007-O32 -- 8 |
| 703 | Catalina Sky Survey in Arizona, 4 in MPECs 2007-O15, 2007-O16 & 2007-O32 -- C/2007 G1, C/2004 D1, 2007 NC5, 52750 |
| 470 | Ceccano Obs. in Italy, 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| A77 | Chante-Perdrix Obs. in France, 6 in MPECs 2007-O22, 2007-O26, 2007-O27, 2007-O28 & 2007-O32 -- C/2007 G1, C/2006 OF2, C/2007 M3, C/2007 M2, C/2007 M1, C/2007 JA21 |
| A10 | Corbera Obs., 4 in MPEC 2007-O32 -- C/2007 G1, C/2007 E2, C/2006 VZ13, C/2005 L3 |
| 850 | Cordell-Lorenz Obs. in Tennessee, 7 in MPECs 2007-O16, 2007-O23, 2007-O28, 2007-O30, 2007-O31 & 2007-O32 -- P/2007 N2, C/2006 VZ13, C/2007 O1, C/2007 N3, C/2007 M3, C/2007 K1, 2007 NC5 |
| 095 | Crimean Astrophysical Obs. in the Ukraine, 1 in MPEC 2007-O32 -- 93 |
| 734 | Farpoint Obs. in Kansas, 1 in MPEC 2007-O31 -- C/2007 O1 |
| 595 | Farra d'Isonzo Obs. in Italy, 2 in MPECs 2007-O16 & 2007-O32 -- P/2007 N2, 2007 NC5 |
| 157 | Frasso Sabino Obs. in Italy, 1 in MPEC 2007-O19 -- C/2006 S3 |
| J95 | Great Shefford Obs. in England, 4 in MPECs 2007-O15, 2007-O16, 2007-O17 & 2007-O32 -- P/2007 N2, 2007 OX, 2007 NC5, 2007 NL1 |
| 458 | Guadarrama Obs. in Spain, 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| 442 | Gualba Obs. in Spain, 2 in MPEC 2007-O32 -- C/2007 G1, C/2006 VZ13 |
| A18 | Herne Obs. in Germany, 5 in MPECs 2007-O20 & 2007-O32 -- C/2007 G1, C/2007 E2, C/2006 VZ13, C/2005 L3, P/2007 H1 |
| 048 | Hradec Kralove Obs. in the Czech Republic, 6 in MPECs 2007-O20, 2007-O28 & 2007-O32 -- P/2007 N2, C/2007 G1, C/2006 OF2, C/2005 L3, C/2007 M3, P/2007 H1 |
| B19 | Iluro Obs. in Spain, 2 in MPECs 2007-O20 & 2007-O32 -- C/2006 OF2, P/2007 H1 |
| A21 | Irmtraut Obs. in Germany, 4 in MPEC 2007-O32 -- P/2007 N2, C/2006 VZ13, C/2006 OF2, C/2005 L3 |
| 415 | Kambah Obs. in Australia, 8 in MPECs 2007-O20, 2007-O21, 2007-O24, 2007-O25, 2007-O28, 2007-O30, 2007-O31 & 2007-O32 -- P/2007 N2, C/2007 O1, C/2007 N3, C/2007 M3, C/2007 K5, C/2007 K4, P/2007 H3, P/2007 H1 |
| 585 | Kiev Comet Station in the Ukraine, 4 in MPECs 2007-O26, 2007-O28 & 2007-O32 -- P/2007 N2, C/2006 VZ13, C/2007 M3, C/2007 M1 |
| 046 | Klet Obs. in the Czech Republic, 1 in MPEC 2007-O32 -- C/2007 E2 |
| 704 | LINEAR in New Mexico, 9 in MPECs 2007-O20, 2007-O31 & 2007-O32 -- P/2007 N2, C/2007 G1, C/2006 S2, C/2005 S4, 96, 93, 17, C/2007 O1, P/2007 H1 |
| J67 | La Puebla de Vallbona Obs. in Spain, 3 in MPEC 2007-O32 -- C/2007 G1, C/2006 VZ13, 96 |
| J59 | Linceo Obs., 4 in MPECs 2007-O28 & 2007-O32 -- C/2006 OF2, C/2005 L3, 96, C/2007 M3 |
| J48 | Mackay Obs. in the Canary Islands, 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| A01 | Masia Cal Maciarol Modul 1, 7 in MPECs 2007-O28 & 2007-O32 -- C/2007 G1, C/2006 VZ13, C/2006 OF2, C/2005 L3, C/2002 VQ94, 96, C/2007 M3 |
| 232 | Masquefa Obs. in Spain, 9 in MPECs 2007-O20, 2007-O28 & 2007-O32 -- C/2007 G1, C/2007 E2, C/2006 VZ13, C/2006 OF2, C/2005 L3, C/2002 VQ94, 96, C/2007 M3, P/2007 H1 |
| A06 | Mataro Obs. in Spain, 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| 118 | Modra Obs. in Slovakia, 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| 213 | Montcabre Obs. in Spain, 7 in MPECs 2007-O28, 2007-O31 & 2007-O32 -- P/2007 N2, C/2007 G1, C/2007 E2, C/2006 VZ13, 8, C/2007 O1, C/2007 M3 |
| 945 | Monte Deva Obs., 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| J45 | Mt. Cabreja Obs., 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| 474 | Mt. John Obs. in New Zealand, 6 in MPECs 2007-O17, 2007-O18, 2007-O20, 2007-O24, 2007-O25 & 2007-O32 -- C/2006 S2, C/2007 K5, C/2007 K4, P/2007 H1, 2007 OY, 2007 OX |
| G96 | Mt. Lemmon Survey in Arizona, 3 in MPECs 2007-O15, 2007-O16 & 2007-O17 -- 2007 OX, 2007 NC5, 2007 FK1 |
| J47 | Nazaret Obs. in Spain, 1 in MPEC 2007-O32 -- C/2007 G1 |
| A24 | New Millennium Obs. in Italy, 4 in MPECs 2007-O28 & 2007-O32 -- C/2007 G1, C/2005 S4, C/2005 L3, C/2007 M3 |
| H45 | Petit Jean Mtn. South Obs. in Arkansas, 3 in MPEC 2007-O32 -- C/2007 E2, C/2006 VZ13, C/2004 B1 |
| 561 | Piszkesteto Sta. in Hungary, 1 in MPEC 2007-O32 -- C/2006 HW51 |
| 941 | Pla D'Arguines Obs. in Spain, 1 in MPEC 2007-O32 -- C/2006 VZ13 |
| J53 | Posadas Obs. in Spain, 7 in MPECs 2007-O28 & 2007-O32 -- C/2007 G1, C/2007 E2, C/2006 VZ13, C/2005 L3, C/2004 B1, 96, C/2007 M3 |
| B35 | RAS Obs. Macabim, 1 in MPEC 2007-O32 -- C/2007 G1 |
| H06 | RAS Obs. Mayhill in New Mexico, 3 in MPEC 2007-O32 -- P/2007 N2, C/2006 VZ13, 50 |
| H062 | Robert Hutsebaut in Belgium via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-O16 -- 2007 NC5 |
| H68 | Red Barn Obs. in Georgia, 1 in MPEC 2007-O15 -- 24443 |
| 473 | Remanzacco Obs. in Italy, 6 in MPECs 2007-O16, 2007-O17 & 2007-O32 -- P/2007 N2, C/2006 VZ13, C/2005 L3, 8, 2007 OX, 2007 NC5 |
| 939 | Rodeno Obs., 4 in MPEC 2007-O32 -- C/2007 G1, C/2006 VZ13, C/2006 OF2, C/2005 L3 |
| H36 | Sandlot Obs. in Kansas, 1 in MPEC 2007-O32 -- P/2007 N2 |
| 204 | Schiaparelli Obs. in Italy, 19 in MPECs 2007-O15, 2007-O16, 2007-O17, 2007-O23, 2007-O27, 2007-O28, 2007-O29, 2007-O31 & 2007-O32 -- P/2007 N2, C/2007 F1, C/2007 E2, C/2006 OF2, C/2006 HW51, C/2004 D1, C/2002 VQ94, 125, 99, 96, C/2007 O1, P/2007 N1, C/2007 M3, C/2007 M2, C/2007 K1, 2007 OX, 2007 NC5, 2007 DT103, 2003 HF2 |
| E12 | Siding Spring Survey in New South Wales, 5 in MPECs 2007-O15, 2007-O18, 2007-O21 & 2007-O32 -- C/2006 S2, 99, P/2007 H3, 2007 OY, 2007 NS4 |
| A20 | Sogel Obs., 1 in MPEC 2007-O15 -- 2007 MB24 |
| I05 | Southern TIE in Chile, 1 in MPEC 2007-O32 -- C/2005 L3 |
| 673 | Table Mtn. Obs. in southern California, 7 in MPECs 2007-O22, 2007-O23, 2007-O28, 2007-O29, 2007-O30, 2007-O31 & 2007-O32 -- P/2007 N2, C/2007 O1, C/2007 N3, P/2007 N1, C/2007 M3, C/2007 K1, C/2007 JA21 |
| 6735 | Jim Young via Table Mtn. Obs. in southern California, 2 in MPECs 2007-O16 & 2007-O17 -- 2007 OX, 2007 NC5 |
| B26 | Terres Blanches Obs. in France, 1 in MPEC 2007-O32 -- 96 |
| A03 | Torredembarra Obs., 1 in MPEC 2007-O32 -- C/2004 D1 |
| J70 | Vega del Thader Obs. in Spain, 3 in MPEC 2007-O32 -- C/2007 G1, C/2006 VZ13, C/2005 L3 |
| B42 | Vitebsk Obs., 7 in MPECs 2007-O28 & 2007-O32 -- C/2007 G1, C/2006 VZ13, C/2005 L3, 96, 93, 17, C/2007 M3 |
| 198 | Wildberg Obs. in Germany, 1 in MPEC 2007-O16 -- 2007 NC5 |
| A79 | Zvezdno Obshtestvo Obs. in Bulgaria, 4 in MPECs 2007-O20, 2007-O28 & 2007-O32 -- P/2007 N2, C/2005 L3, C/2007 M3, P/2007 H1 |
Impact Risk Monitoring on 19 July '07
At last check (NEODyS at 2356 and JPL at 2357 UTC) there was no risk monitoring news to report yet today.
Chronology on 19 July '07
Times are UTC for when the items were noted or added by Major News.
| 1902 | Added link to news story, "Astronomers Find Highly Elliptical Disk Around Young Star" Added link to news story, "Saturn's 'Walnut Moon' Mystery Solved" Added link to news story, "Odd form of space debris needles Keck scientists" Added link to news story, "Saturn's Old Moon Iapetus Retains Its Youthful Figure" Added link to news story, "'Blue Needle' Presents New Challenge for Theorists" Added link to news story, "Ice Volcanoes Everywhere?" Added link to news story, "The Walnut-Shaped Moon" Added link to news story, "Astronomers Find 'Blue Needle' in Space" |
| 1733 | Grabbed MPEC 2007-O32 - Observations of Comets - see above |
| 1620 | Grabbed MPEC 2007-O26 - Comet C/2007 M1 (McNaught) - see above Grabbed MPEC 2007-O27 - Comet C/2007 M2 (Catalina) - see above Grabbed MPEC 2007-O28 - Comet C/2007 M3 (LINEAR) - see above Grabbed MPEC 2007-O29 - Comet P/2007 N1 (McNaught) - see above Grabbed MPEC 2007-O30 - Comet C/2007 N3 (Lulin) - see above Grabbed MPEC 2007-O31 - Comet C/2007 O1 (LINEAR) - see above |
| 1552 | Added news report, "Quebec meteor" |
| 1546 | Grabbed MPEC 2007-O21 - Comet P/2007 H3 (Garradd) - see above Grabbed MPEC 2007-O22 - Comet C/2007 JA21 (LINEAR) - see above Grabbed MPEC 2007-O23 - Comet C/2007 K1 (Lemmon) - see above Grabbed MPEC 2007-O24 - Comet C/2007 K4 (Gibbs) - see above Grabbed MPEC 2007-O25 - Comet C/2007 K5 (Lovejoy) - see above |
| 1515 | Grabbed MPEC 2007-O19 - Comet C/2006 S3 (LONEOS) - see above Grabbed MPEC 2007-O20 - Comet P/2007 H1 (McNaught) - see above |
| 1500 | Added MOS paper, "Dynamics of Dense Cores in the Perseus Molecular Cloud" - see above Added MOS paper, "Multi-Wavelength Imaging of Young Stellar Object Disks: Toward an Understanding of Disk Structure and Dust Evolution" - see above Added MOS paper, "Observations of B335 in the Millimeter Continuum and the 226 GHz H2CO Line" - see above Added MOS paper, "On the migration of protoplanets embedded in circumbinary disks" - see above Added MOS paper, "Origin of the Metallicity Dependence of Exoplanet Host Stars in the Protoplanetary Disk Mass Distribution" - see above Added MOS paper, "The effect of type I migration on the formation of terrestrial planets in hot-Jupiter systems" - see above Added link to news story, "Ice Crystals on Pluto's Moon Charon Suggest a Surface Constantly Refreshed by Ammonia-Water Volcanoes" Added link to news story, "Wood chipper apparently strikes again" Added link to news story, "'Water on Pluto moon'" |
| 1456 | Grabbed MPEC 2007-O17 - 2007 OX - see above Grabbed MPEC 2007-O18 - 2007 OY - see above |
| 1412 | Grabbed MPEC 2007-O15 - Daily Orbit Update - see above Grabbed MPEC 2007-O16 - 2007 NC5 - see above |
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