Conversion of LDEF Experiment M0003 Sample Observation Database to MS-DOS Formats
Abstract
The four trays of the M0003 materials on the Long Duration Exposure Facility (LDEF) contained over 1200 samples from 20 subexperiments. The complete sample complement represented a broad range of materials, including thin-film optical coatings, paints, polymer sheets and tape, adhesives, and composites, for use in various spacecraft applications, including thermal control, structures, optics, and solar power. Since some subexperiments included duplicate samples exposed on the leading- and trailing-edge trays for 9-week, 19-week, 40-week, and 69-month durations, comparisons among samples provided a valuable time history of degradation. During the deintegration of the subexperiments from the M0003 trays, each sample was examined using bright- field, dark-field, and Nomarski-light microscopy techniques. Records of the condition of the samples and all available references of publication on postflight analyses on each sample were originally collected on a Macintosh computer database. In response to requests by the spacecraft community for a PC version of the database, two conversions were made: Paradox 4.0 and dBase IV. This report includes instructions for installation and use, including example searches and printouts, of each of these conversions. Copies of the electronic database are available on floppy disk by request in both IBM formats, as well as the original 4th Dimension for Macintosh version. LDEF, Database, Long duration exposure facility
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1993
- Accession Number
- ADA272945
Entities
People
- B. C. Trotter
- J. M. Coggi
- S. R. Gyetvay
Organizations
- The Aerospace Corporation