... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. April 2, 1997 . A Complete Aurora . ... U. Iowa ), Polar , VIS , NASA . Explanation : Aurora frequently make complete rings around a pole of the Earth. ... A complete aurora l oval is normally hard to photograph because part of it usually occurs over a brightly sunlit portion of the Earth. ... About APOD > . ... NASA Technical Rep.: ...

The T-matrix or transition matrix is well known in the quantum theory of scattering [ 56 ] where one also uses the Heisenberg S-matrix connected with the T-matrix by the relation . In contrast to the coordinate representation in the integral equation method, where the scattered and incident fields are connected by the Green function, the T-matrix connects the coefficients of the expansions of the scattered and incident fields in terms of a complete system of the vector basis functions. ...

Astronomy Picture of the Day . A Complete Aurora . ... 2.04.1997 . ... U. Iowa ), Polar , VIS , NASA Explanation: Aurora frequently make complete rings around a pole of the Earth. This particular " crown ", visible in orange near the top of this image , was taken by the orbiting Polar spacecraft about one year ago and released by NASA last month. A complete aurora l oval is normally hard to photograph because part of it usually occurs over a brightly sunlit portion of the Earth. ...

Preprints (recent) . Some semi-direct products with free algebras of symmetric invariants, arxiv:1510.01093v1[math.RT] . Symmetric invariants of Z 2 -contractions and other semi-direct products (2014), pdf . Nilpotent Gelfand pairs and spherical transforms of Schwartz functions III. ... Centres of centralisers in the classical Lie algebras (2006), pdf , ps ; published as a part of ``Surprising properties of centralisers in classical Lie algebras'', Ann. ...

... Space flight . Crew training . ... Space camp . ... acquiring practical habits and skills of performing all the flight operations envisaged for a flight participant; . maintaining and honing professionally required qualities and skills for a successful activity in conditions of effect of adverse factors of a space flight, as well . ... preparing for the activity outside the spacecraft; . ... preparing for professional activity in conditions of effect of the space flight factors; . ...

... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. Dnepr Cluster Mission 2014 6 November 2014. ... Mission profile SHM configuration Reliability Dnepr LV Performance Launch Sites . Baikonur Cosmodrome Yasny launch base Downloads . ... Preparations for the Dnepr-DubaiSat-1 launch are well progressing at Baikonur Cosmodrome. ...

Astronomy Discussion Forums . Forums: . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... Discussion Forums . ... SETI A Great Idea And A Complete Waste . Forum List | ... Post Message | ... SETI is a beautiful idea but it is a complete waste of time and money. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

. | Front page | . | << - Number counts | Contamination - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

... After delivery of all engineering models and SRT test sets to LA main ASC activities were moved to LA as well. ... Special attention was paid to the problem of tests on the electromagnetic compatibility between service and scientific on-board payload. ... The SRT was attached to special supporting frame, and LNA cooling system (NSOTR) was installed on the Focal Container. ... FC Focal Container - hermetic package with the scientific payload; it contains receivers, . ... TVT Thermo-Vacuum Tests . ...

. One ADC board in the enclosure. Another view . The complete enclosure. Last Modified: . 04 Nov 2002 . Back one page . Write Us . Labir Home .

National Research Institute for Physical-Technical and Radio Engineering Measurements IMPROVEMENT OF THE SOFTWARE BERNESE FOR CALCULATION OF THE EARTH ROTATION PARAMETERS ACCORDING TO THE DATA OF SATELLITE LASER RANGING (LAGEOS 1, LAGEOS 2) IN THE MAIN METROLOGICAL CENTRE OF THE STATE TIME AND FREQUENCY SERVICE Tsyba E. N., Kaufman M. B. 141570, Mendeleevo, Moscow region, Russia tel. +7-903-194-7575; tsyba_e_n@mail.ru ABSTRACT Preparatory ...

Appendix B: The Effects of Thermal Changes on the "Absolute" Position of the Secondary . ... I will use the same nomenclature for the rod forces here as I used in Appendix A. In Appendix A, the axial force balance equation at the horizon was shown to be . ... The quantity that we really wish to derive is , where is the rod elongation at some initial epoch (i.e. when the rods were first tensioned) and where is the rod elongation at some later time after the rod temperatures had changed. ...

... Complete content for online Mercury is available to ASP members and institutional subscribers . ... You can retrieve the latest issue of Mercury here . ... Although its primary mission is to study the Cosmic Microwave Background, the Planck spacecraft has already made an impressive range of discoveries. ... Extrasolar Planets: The Saga Continues , Paul Deans . ... Editorial, Paul Deans . Forty Years Ago . ... 40 Years Ago: The Birth of Mercury Magazine . ... Sky Sights, Paul Deans . ...

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... Alfred Merrill Worden . NASA Astronaut (former) . ... Married to Jill Lee Worden (Hotchkiss). ... He served as a member of the astronaut support crew for the Apollo 9 flight and as backup command module pilot for the Apollo 12 flight. ... Scott and Irwin collected approximately 171 pounds of lunar surface materials on their three expeditions onto the lunar surface; and Worden logged 38 minutes in extravehicular activity outside the command module, "Endeavour." ...

Sky watchers will witness a total lunar eclipse in the early hours of Thursday 21st February, subject to weather conditions. For a total lunar eclipse to occur, the Moon in its orbit around the Earth must pass fully into the cone-shaped shadow of the Earth in space. ... The Moon does not usually go completely dark because the Earth's atmosphere refracts direct sunlight around the edge of the shadow on to the Moon's surface. This causes the Moon to turn a dark, blood-red or copper colour. ...

... 1,2]. this article we considered the problem of development of mathematical logic programming of intelligent agents for searching, recognizing, collecting g information in the Internet. ... http://www.cplire.ru/Lab144/index.html) 5. .. : - . ... Moscow, 1999. ­ pp. 54-59. (http://www.cplire.ru/Lab144/internet.pdf) 8. ... Morozov A.A., Obukhov Yu.V. An Approach to Logic Programming of Intelligent Agents for Searching and Recognizing Information on the Internet // Pattern Recognition and Image...

Introduction to Hardware Signal Injections Peter Shawhan, Isabel Leonor, Szabi MАrka (LIGO/Caltech, U. of Oregon, LIGO/Caltech) LSC Meeting March 19, 2003 LSC Meeting, 19 March 2003 Shawhan, Leonor, Marka LIGO-G030112-00-D Uses of Hardware Signal Injections Complete end-to-end test of detector and analysis Verify that detector does not distort si gnal in unexpected ways Verify that search algorithm can detect signals ! ...

... Formation of Galactic Subsystems in Light of the Magnesium Abundance in Field Stars. ... The Thin Disk(2006) . ... I. The Thick Disk. ... A Compiled Catalog of Spectroscopically Determined Elemental Abundances for Stars with Accurate Parallaxws. I Magnesium. ... Stars of extragalactic origin in the solar neighborhood.( ... Evidence for age delay between the formation of the old halo and the thick disk(2000) . ... Tel:work(8632)433985 . home(8632)333178 . Fax:(8632)434044 . ...

. Press release . 17.03.2001 . Press release . March 17 2001 09:00 (Moscow time) . The operation with OC "Mir" scheduled for March 16 is complete. The recent telemetry data confirmed the OC"Mir" remains pressurized, the thermal condition is normal.The batteries generate enough electric power to provide onboard systems nominal performance and register trajectory parametres. The next status report will be issued on March 18.