Determining earth's rotation from laser observations of LAGEOS artificial earth satellite (during period of main merit campaign)

Details Determining earth's rotation from laser observations of LAGEOS artificial earth satellite (during period of main merit campaign) Determining earth's rotation from laser observations of LAGEOS artificial earth satellite (during period of main merit campaign)

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988rpsct...3...23t&link_type=abstract

In its JPRS Report: Science and Technology. USSR: Space p 23 (SEE N88-30498 24-88) Transl.into ENGLISH from Izvestiya Vysshikh U

Physics

Earth Observations (From Space), Earth Rotation, Lageos (Satellite), Laser Range Finders, Algorithms, Equations Of Motion, Sidereal Time

Scientific paper

An additional contribution is made to determine the parameters of the earth's rotation by laser determinations of the LAGEOS artificial earth satellite as observed during the main campaign of the MERIT program. Ways to solve the many problems involved were outlined in the MERIT standards. However, the traditional algorithm to determine the parameters of the earth's rotation do not take into account the erroneousness or neglecting of parameters of the earth's rotation arising in the numerical integration of the equations of motion of a satellite, although this influence may be significant when making highly precise observations. This article gives the results of a series of determinations of parameters of the earth's rotation obtained during the period 1 September 1983 to 31 October 1984 using a new algorithm which takes this influence into account. A table gives the parameters of the earth's rotation for 89 arcs. Four solutions were obtained by the processing of 49,506 normal points of laser observations distributed in a 14-month interval. An improved method is proposed for more precise determination of sidereal time on the basis of laser observations of artificial earth satellites.

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