Download Earth Rotation and Coordinate Reference Frames: Edinburgh, by Martine Feissel (auth.), Claude Boucher, George A. Wilkins PDF

Download Earth Rotation and Coordinate Reference Frames: Edinburgh, by Martine Feissel (auth.), Claude Boucher, George A. Wilkins PDF

By Martine Feissel (auth.), Claude Boucher, George A. Wilkins (eds.)

Over the earlier ten years, because the benefit venture all started in 1980, nice adjustments have taken position and important advances made within the sector of Earth Rotation and Coordinate Reference Frames. Symposium one hundred and five, held on the one hundred and twenty fifth Anniversary assembly of the overseas organization of Geodesy, August 1989, used to be dedicated to this topic. significant advancements in strategies, equivalent to VLBI and laser ranging, were observed through corresponding advancements in data-processing systems and theories of proper phenomena. The papers incorporated during this quantity supply either a entire checklist of previous discoveries and a legitimate foundation for additional advances. part headings are as follows: - Earth Rotation: selection and Prediction - Earth Rotation: Interpretation - Reference Frames

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Additional resources for Earth Rotation and Coordinate Reference Frames: Edinburgh, Scotland, August 10–11, 1989

Example text

4. Range residuals from the same pass of a short-arc solution. ,. u"'" (rc. -er< loh4 .... 'SA As a test of the repeatability of the tracking station coordinates, a second data set was processed using both techniques. This second data set cannot be considered entirely independent, since it shares a proportion of common data « 30% of the first data set). However, it is of a similar format to the first, consisting of eight one-week arcs. 4 cm. These agreements have been obtained after 7-parameter Helmert transformations, and it should be noted that the two short-arc solutions demonstrated large (> 1 m) systematic biases with each other and with the long-arc solutions.

SLRTRANS is a program for comparing various coordinate sets. The heart of this program is the estimation and removal of systematic biases between coordinate sets, through a simple 7-parameter Helmert transformation. Fig. 1. Schematic flowchart of the SODAPOP suite. 26 A flowchart of the current version of SODAPOP is given in Fig. 1. It shows the interaction between the five distinct modules in the package, which are as follows. 1. The pre-processing module, DATPAK, which produces filtered, normal pointed data from raw full-rate data.

ISO a.. 300 0 -L-- I I I 30 20 10 lime - mlnules aFler slart of pass 50 rr. -uc USI .... tA Fig. 3. Range residuals from a single pass of a long-arc solution. SOOAPOP Lost'r Ronge Reslduol plolling progroM dolo 51>l : , ... , f/IO,l (r_ ...... 71018) 18;19;~5 no. 000 Q/ a \,.. d 0 Q 9 o 0 o 'oS reslwol kl>y : 9 """"'KG • - . , . ftanl. " a.. (. 71llkoowl,. d 111...... U 0 r - 7m ""1 0' C \,.. 012. • - 1m Gr'SM 9 1ttO_J~ ,. ISO "'\W. J1O~-----,J'iO. lime - minutes oFler slart of pass Fig. 4.

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