SPADEX-1: Earth Viewing Data from HRC

SPADEX (Space-craft Docking Experiment) is based on the low docking concept using two small satellites. Docking refers to engaging and securing the two spacecraft together by a docking mechanism when the approaching spacecraft called the “SDX01” flies directly into another spacecraft called the “SDX02” in a controlled manner.

The primary objectives of SPADEX experiment are to:

• To Develop and demonstrate the technology needed for rendezvous and docking, using two small satellites.

   The secondary mission objectives are to:

• Demonstrate the controllability of SDX01 & SDX02 in the docked condition.

Data Access

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Data Version

Version 1.0 (beta).

Data Sources

High resolution camera data

Data Citation

NA

Processing Steps

1. Data decoding by extraction of raw image frames from payload data files.

2. Radiometric correction for all frames using Look Up Table application to convert raw frames to rad frames

3. Geometric Correction to rectify geometric distortions in the frames and generating geo corrected frame TIFs in WGS-84 datum.

References

1. [1] Lowe, David G. "Distinctive image features from scale-invariant keypoints." International journal of computer vision 60.2 (2004): 91-110.

Derivation Techniques and Algorithm

Geo corrected frames are refined using control points estimated using Scale Invariant Feature Transform (SIFT) has been described in detail in [1].

Limitations

Known problems with data

File Naming Convention

MetaData