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![]() Date: 2012-10-04 19:49:30GPS Geodesy Navigation Astrometry Surveying Global Precipitation Measurement ECEF Global Positioning System Ephemeris Spaceflight Technology Astrology | Add to Reading List |
![]() | EPHEMERIS November 2012 SJAA Activities Calendar Jim Van Nuland NovemberDocID: 1uGTZ - View Document |
![]() | The Carina Nebula imaged by the VLT Survey TelescopeDocID: 1unwO - View Document |
![]() | Aerial View of Cerro ParanalDocID: 1uh4B - View Document |
![]() | 1 CHAPTER 7 TIME In this chapter we briefly discuss the several time scales that are in use in astronomy, such as Universal Time, Mean Solar Time, Ephemeris Time, Terrestrial Dynamical Time,DocID: 1u2AZ - View Document |