Ephemeris Support Data
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Tracking and Data Relay Satellite — A Tracking and Data Relay Satellite (TDRS) is one of a network of communications satellites of the Tracking and Data Relay Satellite System (TDRSS) used by NASA and other United States government agencies for communication to satellites or the… … Wikipedia
Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals … Wikipedia
GPS signals — Global Positioning System (GPS) satellites broadcast radio signals to enable GPS receivers to determine location and synchronized time. Anatomy of a GPS signal GPS signals include ranging signals, used to measure the distance to the satellite,… … Wikipedia
Mercury (planet) — Mercury ☿ … Wikipedia
eclipse — eclipser, n. /i klips /, n., v., eclipsed, eclipsing. n. 1. Astron. a. the obscuration of the light of the moon by the intervention of the earth between it and the sun (lunar eclipse) or the obscuration of the light of the sun by the intervention … Universalium
Neptune — This article is about the planet. For other uses, see Neptune (disambiguation). Neptune … Wikipedia
Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) … Wikipedia
SR-71 Blackbird — infobox Aircraft name = SR 71 Blackbird caption =An SR 71B Trainer over the Sierra Nevada Mountains of California in 1994. Note second cockpit is raised for the instructor. type = Strategic Reconnaissance manufacturer = Lockheed Skunk Works… … Wikipedia
9 Metis — For the moon of Jupiter, see Metis (moon). 9 Metis Discovery Discovered by A. Graham Discovery date 25 April 1848 … Wikipedia
Summer Science Program — The Summer Science Program (SSP) is an intense six week summer program for intellectually talented high school students. The program is based on a collaborative research project in celestial mechanics. Students study astronomy, physics, spherical … Wikipedia
Good Witch of the West Astraea Testament — Infobox animanga/Header name = Good Witch of the West caption = ja name = 西の善き魔女 ja name trans = Nishi no Yoki Majo genre = Drama, FantasyInfobox animanga/Novel title = author = Noriko Ogiwara illustrator = publisher = flagicon|Japan C Novels… … Wikipedia