... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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Calendar Summary: 010651A2H calendar start time: 2001.065:15:15:00 end time: 2001.065:22:00:00 span: 000:06:45:00 Distribution by Priority: Tot 100 90 80 70 60 50 40 30 20 10 0 No. cand. in C&C List.. ... TOTAL PRIMARY, PRIME.. 0.09 1.28 6 Prime Align.. 0.08 1.24 3 Prime Tar Acq Align.. 0.00 0.00 0 Prime PCS Acq/Re.. ... 0.00 0.00 0 Moving Targ, Align.. 0.00 0.00 0 Moving Targ, Tar Acq.. 0.00 0.00 0 Moving Targ, PCS Acq/Re.. ... 0.00 0.00 0 FHST Updates Roll.. ... 0 0 TOTAL.. ...

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• http://www.stsci.edu/spss/021967c5.sum
• http://www.stsci.edu/spss/020357f1.sum
• http://www.stsci.edu/spss/021967c6.sum

... Edit the file oyster/usno/cronjob to contain the proper path to the update shell script, and then use the command . crontab cronjob . ... Otherwise, the database usno/mark3.dat obtained with the download will not be updated and eventually will not provide Earth orientation data for the date observed. In this case, a warning message will be displayed, which, however, can usually be ignored in all cases but astrometry. Christian Hummel 2015-04-28 ...

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... Earth's Temperature . ... 30.01.1997 . ... NOAA Explanation: What's the temperature outside? No matter where you are on Earth , the above map can tell you. This global montage was created using the temperature data from numerous satellites orbiting the Earth. This map indicates temperatures recorded early on January 26 th , 1997, but an even more recent map -- updated every 6 hours -- is usually available . ... Publications with keywords: Earth . ... Hurricane Paths on Planet Earth . ...

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• Earth During a Total Eclipse of the Sun
• Астронет > Earth's Temperature
• Journal "Peremennye Zvezdy"

The ut1.dat file contains the corrections made to UT1R-TAI time which is used by the Tempo and Tempo2. ... The corrections are published monthly by the International Earth Rotation Service (IERS) in several IERS bulletins Bulletins B, C, D'. ... The script `getut1' extracts UT1R - TAI for every 5th day and places it in the file ut1.tmp. ... Extract the required UT1 - UTC offsets using the script `getut1' %getut1 B.nnn This produces a file ut1.tmp in the iers directory. ...

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• Pulsar Group Processing/Ut 1
• Pulsar group | Processing / Ut1
• Australia Long Baseline Array - 2002Nov Term schedule

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

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• Earth [Oulu]
• Magnetospheric electric fields (Oulu)
• Magnetosphere [Oulu]

... Peter J.K. "Jeff" Wisoff (Ph.D) . NASA Astronaut (former) . ... A veteran of four space flights, STS-57 in 1993, STS-68 in 1994, STS-81 in 1997 and STS-92 in 2000, Dr. Wisoff has logged a total of 42 days, 56 hours, 1 minute and 48 seconds in space, including , 19 hours and 53 minutes of EVA time in three space walks. ... Following 183 orbits of the Earth in 269 hours and 46 minutes, the eleven-day mission ended with Space Shuttle Endeavour landing at Edwards Air Force Base, California. ...

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• Astronaut Bio: Jay Apt 06/1997
• NASA Oral History Project
• Astronaut Bio: John Glenn, Jr. 1/99

... Spacecraft . 29a. Satellite looking up . ... 29e. Explorers of distant space . Space Index . ... Many "down-looking" satellites also carry out local observations, among them Polar, Viking, Freja and satellites of the GOES and DMSP series. ... Other explorers of the distant magnetosphere have included the three ISEE spacecraft (International Sun-Earth Explorers), Polar in an elliptical polar orbit with cameras observing the polar aurora, and Image observing energetic neutral atoms. ...

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• The Wind Spacecraft
• Early Warning of Interplanetary Disturbances
• Lagrangian Points

... 2011 January 2 . Looking Back at an Eclipsed Earth . Credit: Mir 27 Crew ; Copyright: CNES . Explanation: Here is what the Earth looks like during a solar eclipse . The shadow of the Moon can be seen darkening part of Earth . ... This spectacular picture of the 1999 August 11 solar eclipse was one of the last ever taken from the Mir space station . ... Mir was deorbited in a controlled re-entry in 2001. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2004 September 26 - Looking Back on an Eclipsed Earth
• APOD: 2007 June 10 - Looking Back at an Eclipsed Earth
• APOD: 2011 June 1 - Earth Rotating Under Very Large Telescopes

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . This project was established in mid-1998 to help coordinate, and provide a focal point for, the study of those comets and asteroids that can approach the Earth's orbit. ... Web Site . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

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• Lowell Observatory Near-Earth Object Search - LONEOS, AstroGuide Listing
• Near-Earth Asteroid Tracking - NEAT, AstroGuide Listing
• NASA's Observatorium, AstroGuide Listing

MINUTES of the RadioAstron Teleconference on December 13, 2011 Yu.Yu. ... IOC status update M. Popov informed the participants on the current IOC results. ... Kovalev added: we continue to observe pulsars and spectral line sources in radiointerferometer mode but only with spacecraft and we are also going to observing pulsars soon with space-ground baselines. ... Kovalev: It is fringe-fitting result. ... In RAFS05 we replace it with K-band observing (maser source Ori KL ­ spectral lines ~100000Jy). ...

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Apollo 12 astronaut Alan Bean holds a special environmental sample container which holds soil collected during the second moonwalk EVA. ... Central Latitude/Longitude (deg): -3.01, 23.42 . ... Instrument: Hasselblad Camera . ... Instrument Field of View (deg): 60 mm Focal Length . ... Illumination Incidence Angle (deg): N/A . ... NASA Image ID number: AS12-H-49-7278 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ... Code 630, NASA Goddard Space Flight Center . ...

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• Earth's Moon - Apollo 11