Low Earth orbit - Wikipedia, the free encyclopedia
A low Earth orbit ( LEO ) is generally defined as an orbit within the locus extending from the Earth’s surface up to an altitude of 2,000 km. Given the rapid orbital decay of objects below approxi...
en.wikipedia.org/wiki/Low_Earth_orbit
Geostationary orbit - Wikipedia, the free encyclopedia
A geostationary orbit (or Geostationary Earth Orbit - GEO ) is a geosynchronous orbit directly above the Earth's equator (0° latitude), with a period equal to the Earth's rotational period and a...
en.wikipedia.org/wiki/Geostationary_orbit
Just what does it require to get into Low Earth Orbit? Please remember that this was accomplished with pre-1960's technology. ... The velocity is what is needed to stay in orbit at that altitude.
www.spacefuture.com/archive/getting_to_low_earth_orbit.... www.spacefuture.com/archive/getting_to_low_earth_orbit.shtml
Equatorial Low Earth Orbit, ... Facilities, once constructed in ELEO, may then be moved to the final orbit of choice, by being boosted into a highly eccentric orbit, then given any necessary required plane change at apogee with very little delta-v cost, then returned to the desired altitude by use of aerobraking at perigee.
www.spacefuture.com/archive/equatorial_low_earth_orbit_... www.spacefuture.com/archive/equatorial_low_earth_orbit_an_ideal_orbit_for_in_space_construction.shtml
Citation: Zhou, D. K., W. R. Pendleton Jr., G. E. Bingham, D. C. Thompson, W. J. Raitt, and R. M. Nadile (1994), IR Excitation of Contaminant Water by Oxygen for the Space Shuttle at Low Earth Orbit Altitude, J. Geophys.
www.agu.org/pubs/crossref/1994/94JA01530.shtml
If a constraint on altitude is imposed on a low earth orbit constellation (due to licensing requirements, for example) while constraints on phasing with the Earth do not exist, then a unique situation arises.
www.freepatentsonline.com/6453220.html
Descriptors : *ELECTRIC CHARGE, *SPACECRAFT, OUTGASSING, IONIZATION, SOUNDING ROCKETS, SPACE SHUTTLES, FLIGHT TESTING, ELECTRON GUNS, DIAGNOSTIC EQUIPMENT, PLASMA SHEATHS, ROCKET NOZZLES, ELECTRON BEAMS, PLASMA DIAGNOSTICS, EARTH ORBITS, LOW ALTITUDE, VOLTAGE.
stinet.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=h... stinet.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADP005699
According to some, LEO includes orbits having apogees (high points) and perigees (low points) between about 100 km and 1,500 km. Others extend that range up to 2,000 or 3,000 km. In some cases, the distinction between LEO and MEO (medium Earth orbit) is dropped and LEO is considered to be any orbit below...
www.daviddarling.info/encyclopedia/L/LEO.html
Photographs taken from low Earth orbit provide additional information to supplement data from ground stations and high-altitude satellite sensors. We use a haze event in the eastern USA as a case study to show the value of the photographs from low Earth orbit when integrated with point data acquired from ground stations.
eol.jsc.nasa.gov/newsletter/DynamicEarth/Chapter6/Cp6.h... eol.jsc.nasa.gov/newsletter/DynamicEarth/Chapter6/Cp6.htm
This has prompted the development of several low earth orbit satellite systems that promise worldwide connectivity and real-time voice communications. This article provides a tutorial ... The IRIDIUM system orbit is based on a constellation proposed by Adams and Rider [4, 5]. At an altitude of 780 km above the earth,
www.comsoc.org/livepubs/surveys/public/2q99issue/raines... www.comsoc.org/livepubs/surveys/public/2q99issue/raines.html