Engineering topics
Tanner, A.
Publications and source records attributed to Tanner, A..
TES-8: Advanced Exo-Brake, VR and COM Experiments
The TES-8 was jettisoned from the International Space Station on January 31, 2019. As an orbital laboratory and 8th in on-going series, the design makes use of a standard set of interfaces and safety features that permit rapid re-flight. On this flight, an advanced Exo-Brake is flown with de-orbit targeting capability that will engender sample return capability from LEO platforms. A Virtual Reality data recording system uses stereo imaging and efficient data-compression with an NVIDIA GPU (Graphics Processing Unit) to permit compression and transmission of very large data files. An SDR (Software Defined Radio) will download data to the NEN (Near Earth Network) for the first time - demonstrating potential use in cis-lunar space using S-band. For the first time, a comparison will be made regarding the functionality of the Iridium and Globalstar short burst data modems - as essential communication tools for future nano-sat projects. Lastly, the 7 micro-processors and 4 cameras provide an excellent learning platform for university students and NASA young professionals.
TechEdSat-N and ETC Series
This presentation address the issues and how to involve students in the process of develping, building and certifying flight hardware for ISS and development of Mars missions.
Getting the GeoSTAR Instrument Concept Ready for a Space Mission
The Geostationary Synthetic Thinned Array Radiometer - GeoSTAR - is a microwave sounder intended for geostationary satellites. First proposed for the EO-3 New Millennium mission in 1999, the technology has since been developed under the Instrument Incubator Program. Under IIP-03 a proof-of-concept demonstrator operating in the temperature sounding 50 GHz band was developed to show that the aperture synthesis concept results in a realizable, stable and accurate imaging-sounding radiometer. Some of the most challenging technology, such as miniature low-power 183- GHz receivers used for water vapor sounding, was developed under IIP-07. The first such receiver has recently been adapted for use in the High Altitude MMIC Sounding Radiometer (HAMSR), which was previously developed under IIP-98. This receiver represents a new state of the art and outperforms the previous benchmark by an order of magnitude in radiometric sensitivity. It was first used in the GRIP hurricane field campaign in 2010, where HAMSR became the first microwave sounder to fly on the Global Hawk UAV. Now, under IIP-10, we will develop flight-like subsystems and a brassboard testing system, which will facilitate rapid implementation of a space mission. GeoSTAR is the baseline payload for the Precipitation and All-weather Temperature and Humidity (PATH) mission - one of NASA's 15 "decadal-survey" missions. Although PATH is currently in the third tier of those missions, the IIP efforts have advanced the required technology to a point where a space mission can be initiated in a time frame commensurate with second-tier missions. An even earlier Venture mission is also being considered.
Relocation of Advanced Water Vapor Radiometer 1 to Deep Space Station 55
In June of 2004, the Advanced Water Vapor Radiometer (AWVR) unit no. 1 was relocated to the Deep Space Station (DSS) 55 site in Madrid, Spain, from DSS 25 in Goldstone, California. This article summarizes the relocation activity and the subsequent operation and data acquisition. This activity also relocated the associated Microwave Temperature Profiler (MTP) and Surface Meteorology (SurfMET) package that collectively comprise the Cassini Media Calibration System (MCS).
Ultra stable microwave radiometers for future sea surface salinity missions
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Ultra stable microwave radiometers for future sea surface salinity missions
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The High Altitude MMIC Sounding Radiometer (HAMSR)
HAMSR is a millimeter wave temperature and humidity sounder that utilizes state of the art technology to enable substantially reduced size and mass.
A high stability Ka-band radiometer for tropospheric water vapor measurements
This paper presents the design and performance evaluation of two water vapor radiometers which were developed for the Cassini gravitational wave search experiments.
Calibration of a Deep-Sounding Radiometer for a Jupiter Flyby
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Design Details and Test Results of a High Stability Ground Based Microwave Water Vapor Radiometer
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The Propagation of Stable Radio Frequency Signals Through the Atmosphere
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The Propagation of Stable Radio Frequency Signals Through the Atmosphere
The terrestrial troposphere and ionosphere are known to have strong effects on the radiation fields traversing them.
Calibration of Atmospherically Induced Delay Fluctuations
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