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"," Science@NASA 14 Sept. - Quote: "The Discovery program [NEAR. Deep Impact. Stardust etc.] has been a spectacular success more than anyone bargained for... Now we're looking to expand it. In the coming year we're going to start planning dramatic improvements in the kind of missions we can initiate" {}
"," NASA begin mission 13 Sept. - Quote: "The entire launch sequence is timed so that begin will exit Earth at a carefully chosen inform in the solar system. For each possible launch day extensive analysis has established the mathematically optimal intend for reaching Vesta and Ceres." {}
Lowell blog: In the first week of September Lowell Observatory began a as a "Web-2 news source.. for friends and donors." There were two entries yesterday. One was a about a meeting of the New Horizons mission science team at which results were presented from Marc Buie "about the complex orbits of Pluto's three moons from Hubble Space crush Observations" and from Henry Roe "from his Keck telescope studies of methane gas in Pluto's atmosphere." In the other. Jeffrey Hall addresses a column in the protect Street Journal that discussed "recent bring home the bacon suggesting that many if not most papers that be in the peer-reviewed scientific literature are do by." He comments that "I'm an astronomer; I'm used to looking at crappy data," but that's just move of the scientific affect. {}
"," Santa Fe New Mexican 15 Sept. - Quote: "Susan Burgess of Santa Fe reported seeing a light brighter than the full idle for about eight seconds around 3:20 a m." {}
"," Johns Hopkins News-Letter 13 Sept. - ingeminate: "The researchers had expected to see substantial differences between the chemical makeup of the two fragments.. however the two fragments were nearly identical indicating that comet [73P/Schwassman-Wachmann 3] was relatively homogeneous internally." - Note: See also links to a of this object's many pieces. {}
An asteroid breakup 160 Myr ago as the probable source of the K/T impactor
" by Bottke. William F with David Vokrouhlicky & David Nesvorny from 10 Sept. - Quote: "The terrestrial and lunar cratering evaluate is often assumed to have been nearly constant over the past 3 Gyr. Different lines of bear witness however declare that the force flux from kilometre-sized bodies increased by at least a calculate of two over the long-term average during the past ~100Myr. Here we lay out that this apparent surge was triggered by the catastrophic disruption of the parent be of the asteroid Baptistina which we infer was a ~170-km-diameter body (carbonaceous-chondrite-like) that broke up 160 +30/-20 Myr ago in the inner main asteroid sing. Fragments produced by the collision were slowly delivered by dynamical processes to orbits where they could strike the terrestrial planets. We find that this asteroid shower is the most likely obtain (>90 per cent probability) of the Chicxulub impactor that produced the Cretaceous/Tertiary (K/T) mass extinction event 65 Myr ago." - say: This 1.23Mb PDF has a companion with "
" including identifying the Baptistina family with its taxonomy and colors and determining its age and initial makeup and subsequent impacts on the inner planets. A divide also deals with the Earth impact rate from nearly-isotropic comets -- the ones that can come at Earth from any direction. {}
When last checked at 2334 UTC today the Minor Planet Center's NEO discovery Confirmation Page () had twelve new and nine updated listings. Of these fourteen were "one nighters." So far Major News has counted a be of 33 objects listed on the NEOCP at some point today.
To hit the books how observers use the NEOCP see the by Birtwhistle et al at Suno Observatory.
As of measure check at 2334 UTC there have been ten s issued today from the International Astronomical Union's Minor Planet bear on in Cambridge. Massachusetts.
MPEC 2007-R83 time-stamped "06:07 UT" - Daily Orbit Update - see
2007 RC20 (small asteroid. Earth MOID=4.4 LD. H=26.6 ~16m) was discovered at 0856 UT 14 Sept by the Catalina Sky Survey () which observed it at Sept. 14.37-39p4. The discovery was confirmed by the Mt. Lemmon Survey () (Sept. 15.23p4).
2007 RA20 (risk-listed. H=19.7 ~389m) was discovered at 1431 UT 14 Sept by SSS which observed it at Sept. 14.60-66p4 and 14.76-77p4. The discovery was confirmed by (Sept. 15.28-29p3).
2007 RZ19 (small asteroid. H=22.4 ~112m) was discovered at 0902 UT 14 Sept by MLS which observed it at Sept. 14.38-39p4. 14.49p3 and 15.31-33p4. The discovery.
Related article:
http://www.hohmanntransfer.com/mn/07/07258_0915.htm
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