Point determination using MOMS-02/D2 imagery

In the course of the second German Spacelab mission D2 the use of the MOMS-02 camera allows for digital image data acquisition and rigorous three-dimensional point determination with an expected accuracy of 5 m in X, Y and Z. In the preparation phase of the project extensive theoretical accuracy studies are being carried out in order to find out how this accuracy can be achieved. The authors first briefly describe the principles of acquisition and evaluation of digital three-line imagery. Then the data concept of point determination by generalized photogrammetric bundle adjustment is presented. Finally, the accuracy is analyzed theoretically and experimentally, and conclusions are drawn from the results. In particular, the high performance of block adjustment using two overlapping image strips was demonstrated by experimental evaluation for real digital three-line imagery, recorded by an airborne version of the MEOSS (Monocular Electro-Optical Stereo Scanner) camera.