Table 4:
performance Data:
Performance ‘ate:
radiometric resolution 8 bit
selectable gain factors 1,2 and 4
ground pixel along scanline P = 78.8 m
inter scanline distance P = 52.0m
height resolution element P = 54.7 m
swath width (central CCD) SW = 255.8 km
baselength (nadir track) BL = 396.1 and 2x198km
corr. time interval (nadir track) t = 58.1 and 2x29.5 sec
ground based convergence angle B* = + 25.41° and 0°
effective base to height ratio B:H = 0.950 and 2x0.452
active pixels per scanline n =:3237
resolution for cross track wind Av = 1.12 and 2.24 m/s
height error for 1m/s along track wind Ah = 61.1 and 122.2 m
Image data evaluation is done in two steps
preprocessing
radiometric calibration
earth rotation and curvature correction
orbit and attitude correction
high precission correction using
threefold stereo information redundancy
attitude modelling
The preprocessed data are available to all users. High precis-
sion correction is described in detail in the consecutive
paper by A. Drescher.
4. Scientific Objectives
The main goals of the MEOSS mission are
- generation of threefold stereoscopic linescan-
imagery from space
- investigation of procedures for image rectification
- investigation of correlation accuracies over land
and cloud fields
with the following derived products
- rectified linescan images and stereo triplets
1: 1 000 000 scale
- orthophotots and ortho-stereo triplets
1 3 500 000 scale
- heights and cross-track velocties of cloud fields.
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