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Hawley, Steven A.

Publications and source records attributed to Hawley, Steven A..

Earth observations during Space Shuttle flight STS-31: The earth from 600 km - April 24 through 29, 1990

Images taken aboard the Space Shuttle flight STS-31 are presented and discussed in terms of documenting key features and describing regional interrelationships. The images comprise regional views and continuous swath maps that are intended to serve as linkage and/or context for related photographs in the shuttle database. The Linhof hand-held mapping camera is employed at 20-s intervals resulting in contiguous swaths with 75-percent overlap, and Hasselblad images are taken simultaneously to complement the swaths. Specific examples of the products are given for regions including Lake Eyre, Australia, Madagascar, and Central America; specific landforms are also shown including the El Chichon volcano, and an example is shown of the differential heating of land and water. The photographs are considered useful for mapping large-scale features and for providing context for smaller image-data products.

Evans, Cynthia A.↗

Delivering HST to orbit

NASA's STS 31 mission will involve the lofting of the Hubble Space Telescope into orbit by the Space Shuttle Discovery. The Discovery Remote Manipulator System RMS will be used to robotically lift the HST out of the payload bay and position it for release on the 19th orbit. The Discovery Orbiter will then be slowly backed away from the HST; if there is any indication of an HST aperture door malfunction, Discovery will still possess enough time and propellant to return to the HST and open it with the RMS, but not without risk of the HST optics' contamination by thruster exhaust gases.

Hawley, Steven A.↗