périgée
61Gravimetrie spatiale — Gravimétrie spatiale La gravimétrie au sol utilise des gravimètres pour mesurer la pesanteur localement au point exact où est positionné le gravimètre (précision relative 10^( 12), soit quelques micromètres d altitude). La gravimétrie spatiale… …
62Gravimétrie Spatiale — La gravimétrie au sol utilise des gravimètres pour mesurer la pesanteur localement au point exact où est positionné le gravimètre (précision relative 10^( 12), soit quelques micromètres d altitude). La gravimétrie spatiale utilise l étude des… …
63Gravimétrie spatiale — La gravimétrie au sol utilise des gravimètres pour mesurer la pesanteur localement au point exact où est positionné le gravimètre (précision relative 10^( 12), soit quelques micromètres d altitude). La gravimétrie spatiale utilise l étude des… …
64perigeu — PERIGÉU, perigee, s.n. Punct în care un astru sau un satelit artificial aflat în mişcare orbitală se găseşte cel mai aproape de pământ. ♦ Moment, timp în care astrul sau satelitul se află în acest punct. – Din fr. périgée, lat. perigaeum. Trimis… …
65Orbit — This article is about orbits in celestial mechanics, due to gravity. For other uses, see Orbit (disambiguation). A satellite orbiting the Earth has a tangential velocity and an inward acceleration …
66Apsis — For the architectural term, see Apse. Aphelion and Perihelion redirect here. For Edenbridge s Album, see Aphelion (album). Apogee and Perigee redirect here. For the literary journal, see Perigee: Publication for the Arts. For other uses, see… …
67Geostationary transfer orbit — A Geosynchronous Transfer Orbit or Geostationary Transfer Orbit (GTO) is a Hohmann transfer orbit around the Earth between a low Earth orbit (LEO) and a geosynchronous orbit (GEO). It is an ellipse where the perigee is a point on a LEO and the… …
68Orbital spaceflight — Discovery rockets to orbital velocity, seen here just after booster separation An orbital spaceflight (or orbital flight) is a spaceflight in which a spacecraft is placed on a trajectory where it could remain in space for at least one orbit. To… …
69Lacrosse (satellite) — Lacrosse 4, under construction[citation needed] For the 2009 Lunar Impactor Mission designed to crash into the moon, see LCROSS. Lacrosse and Onyx are the code names for the United States National Reconnaissance Office …
70Ofeq — Ofeq, also spelled Offek or Ofek (Hebrew: אופק, lit. Horizon) is the designation of a series of Israeli reconnaissance satellites first launched in 1988. All Ofeq satellites have been carried on top of Shavit rockets from Palmachim Airbase in… …
