Real-Time Determination of Relative Position Between Satellites Using Laser Ranging
نویسندگان
چکیده
منابع مشابه
Absolute Orbit and Gravity Determination using Relative Position Measurements Between Two Satellites
A method has been developed to use a time series of relative position measurements to estimate the orbits of two satellites along with corrections to the gravity model of the celestial body about which they orbit. This system provides autonomy or near autonomy and could be used for gravity recovery at the Moon or a planet. This system eliminates the need for a third spacecraft that maintains a ...
متن کاملLaser Ranging toGPS Satellites with Centimeter Accuracy
In 1960, Theodore H. Maiman, of the Hughes Aircraft Company, successfully operated the first device to generate an intense beam of highly coherent monochromatic radiation. He called his device a laser for light amplification by the stimulated emission of radiation. The laser has become ubiquitous, with literally hundreds of uses ranging from optical surgery to precision machining. Lecturers use...
متن کاملA Real-Time Orbit Determination Method for Smooth Transition from Optical Tracking to Laser Ranging of Debris
A critical requirement to achieve high efficiency of debris laser tracking is to have sufficiently accurate orbit predictions (OP) in both the pointing direction (better than 20 arc seconds) and distance from the tracking station to the debris objects, with the former more important than the latter because of the narrow laser beam. When the two line element (TLE) is used to provide the orbit pr...
متن کاملRelative position determination between lunar lander and rover using same beam VLBI technique
Introduction: In China's third lunar exploration project Chang'E-3 mission, a lander and a rover will be placed on the lunar surface. The lander will not be movable, and the rover will explore the Moon automatically. The rover will be in moving and standstill state interchangeably [1].The precise positioning of the lander and the rover is very important in Chang'E-3 mission. This paper focuses ...
متن کاملDetermination of ctxAB expression in Vibrio cholerae Classical and El Tor strains using Real-Time PCR
Cholera is an infection of the small intestines caused by the bacterium V. cholerae. It is a major cause of health threat and also a major cause of death worldwide and especially in developing countries. The major virulence factor produced by V. cholerae during infection is the cholera toxin. Total mRNA extraction and reverse transcription was performed for making ctxAB cDNA. Relative Real-Time...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Astronomy and Space Sciences
سال: 2012
ISSN: 2093-5587
DOI: 10.5140/jass.2012.29.4.351