closest approach distance
71eclipse — 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 …
72Least squares — The method of least squares is a standard approach to the approximate solution of overdetermined systems, i.e., sets of equations in which there are more equations than unknowns. Least squares means that the overall solution minimizes the sum of… …
73Vega 2 — Infobox Spacecraft Name = Vega 2 Caption = Vega 2 Organization = USSR Major Contractors = Mission Type = Flyby, balloon and lander Flyby Of = Venus, Halley Flyby Date = June 15, 1985 (Venus) and March 9, 1986 (Halley) Launch = 1984 12 21 at 09:13 …
74103P/Hartley — Photograph from close approach by EPOXI mission Discovery Discovered by: Malcolm Hartley Discovery date: 15 March 1986 Alternate designations …
75surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… …
76STS-63 — was the second mission of the US/Russian Shuttle Mir Program, which carried out the first rendezvous of the American Space Shuttle with Russia s space station Mir . Known as the Near Mir mission, the flight used Space Shuttle Discovery , which… …
77Space exploration — is the use of astronomy and space technology to explore outer space. [cite web | url = http://adc.gsfc.nasa.gov/adc/education/space ex/exploration.html | title = How Space is Explored | publisher = NASA] Physical exploration of space is conducted …
78Vega program — The flyby of Halley s Comet had been a late mission change in the Venera program following on from the cancellation of the US Halley mission in 1981. A later Venera mission was cancelled and the Venus part of the Vega 1 mission was reduced.… …
79Comet Rendezvous Asteroid Flyby — Conceptual artwork of the CRAF spacecraft The Comet Rendezvous Asteroid Flyby (CRAF) was a cancelled plan for a NASA led exploratory mission designed by the Jet Propulsion Laboratory during the mid to late 1980s and early 1990s, that planned to… …
80Hurricane John (1994) — Infobox Hurricane Name=Hurricane John Basin=EPac Year=1994 Type=hurricane Image location=Hurricane John 23 aug 1994 0308Z.jpg Formed=August 11, 1994 Dissipated=September 10, 1994 1 min winds=150 Pressurepre=≤ Pressure=929 Da Fatalities=0 Inflated …
