The astronomical detection of biosignatures on extrasolar terrestrial planets: the Virtual Planetary Laboratory
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astrobiology extrasolar planets remote sensing↗
Engineering topics
Allen, M. A.
Publications and source records attributed to Allen, M. A..
The astronomical detection of biosignatures on extrasolar terrestrial planets: the Virtual Planetary Laboratory
Explore the source record for details and available documents.
astrobiology extrasolar planets remote sensing↗
OH column abundance over JPL's TMF 1997-2000
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OH TMF mesospheric chemistry stratospheric chemist↗
Spatially resolved absolute spectrophotometry of Saturn - 3390 to 8080 A
A series of spatially resolved absolute spectrophotometric measurements of Saturn was conducted for the expressed purpose of calibrating the data obtained with the Imaging Photopolarimeter (IPP) on Pioneer 11 during its recent encounter with Saturn. All observations reported were made at the Mt. Wilson 1.5-m telescope, using a 1-m Ebert-Fastie scanning spectrometer. Spatial resolution was 1.92 arcsec. Photometric errors are considered, taking into account the fixed error, the variable error, and the composite error. The results are compared with earlier observations, as well as with synthetic spectra derived from preliminary physical models, giving attention to the equatorial region and the South Temperate Zone.
Bergstralh, J. T.↗
The crew activity planning system bus interface unit
The hardware and software designs used to implement a high speed parallel communications interface to the MITRE 307.2 kilobit/second serial bus communications system are described. The primary topic is the development of the bus interface unit.
Allen, M. A.↗
The NASA bus communications listening device software
The development of the bus listener is presented. Special software was developed to control the 'bus interface units' (BIU) connecting each of these devices to a communications cable to form the bus communication network. The code used in the BTU is described.
Allen, M. A.↗
Specification for installation of the crew activity planning system coaxial cable communication system
The specification used to install a broadband coaxial cable communication system to support remote terminal operations on the Crew Activity Planning system at the Lyndon B. Johnson Space Center are reported. The system supports high speed communications between a Harris Slash 8 computer and one or more Sanders Graphic 7 displays.
Allen, M. A.↗