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TECHNOLOGY DEVELOPMENT ACTIVITY
- Current Funded Activities
LIST OF OTHER SEE ACTIVITIES:
Historical Archive Data Mining – Apollo Era Literature Search
for Materials, Environments, and Lessons Learned
Organization: Marshall Space Flight Center Principal Investigator: Dave Edwards
Status: Start date currently in formulation; 1 year effort
Objectives:
- Data mining to gather information on Apollo Era studies,
investigation, and lessons learned;
- Develop an electronic database of past literature and large
quantities of archived data from
experiments, material test programs, etc.;
- To enable rapid development of operational systems through the
capture of historical Apollo
experiences.
Paschen Discharge Design Guidelines for Manned Moon and Mars
Missions
Organization: Glenn Research Center Principal Investigators: Drs. Dale Ferguson and Barry Hillard
Status: Start date currently in formulation; 1 year effort
Objectives:
- Develop preliminary design guidelines to mitigate against
Paschen Discharge
- Leverages existing work from the MSFC Spacecraft High Voltage
Guidelines
- Provides design engineers with a greater understanding of
Paschen Discharge and Corona
concerns
Solar Particle Risk Assessment Tool (SPRAT)
Organization: Goddard Space Flight Center Principal Investigator: Mike Xapsos
Status: Start date is scheduled for June 1, 2004
Objectives:
- Much data (solar particle events) has been gathered leveraging
the three-year effort under the
2001 SEE Program NRA;
- This effort will provide a comprehensive description of solar
heavy ion exposures (see 2001 SEE
NRA awarded activity for SPRAT information).
Contamination Mitigation Technologies Development
Organization: Marshall Space Flight Center Principal Investigator: Keith Albyn
Status: Start date currently in formulation; 1 year effort
Objectives:
- Identify technologies for lunar surface contamination
analysis;
- Evaluate technologies for the removal of lunar dust from
surfaces in a lunar environment;
- Identify mechanisms for cleaning/containing lunar dust and
other surface contaminants from
surfaces such as EVA Suites and tools.
Lunar-Charged Particle Environment (Lunar-CPE)
Organization: Jacobs-Sverdrup Principal Investigator: Joe Minow
Status: Start date currently in formulation; 1 year effort
Objectives:
- Update L2-CPE model (applicable over -100 Re < Xgse < -300 Re)
to include outer
magnetosphere (>6 Re), through lunar (60 Re) and lunar to -100
Re environments;
- Provides ion, electron flux and fluence for spacecraft
charging and radiation degradation analysis;
Model derived fron ion, electron flux measurements which
provides statistical environments (e.g.,
percentile electron, ion flux at 50%, 95% level).
Mars Atmosphere Radiation Transport Properties
Organization: Jacobs-Sverdrup Principal Investigator: Katherine Harine
Status: Start date currently in formulation; 1 year effort
Objectives:
- Obtain known Martian atmosphere composition and possible
variations;
- Exercise Monte Carlo radiation transport code, MCNPX, to
determine scattering effects of Mars
atmosphere.
Ionizing Radiation Guidelines
Organization: SAIC; Consultant; MSFC Principal Investigators: Hugh Anderson; Jim Howard; Donna Hardage
Status: Scheduled Completion; This activity has been put on
hold indefinitely due to the SEE Program
transferring to the new exploration systems enterprise.
Objectives:
- Develop and publish Design Guidelines for Ionizing Radiation;
- The guidelines will focus on the Program Manager, Design
Engineer and Space Radiation
Engineer (0-5 yrs exp).
L2- Charge Particle Environment (L2-CPE)
Organization: Jacobs Sverdrup Principal Investigator: Joe Minow
Status: Scheduled Completion - Currently in "beta" test;
Version 1.0 release scheduled for Spring
2004.
Objectives: Develop a semi-empirical engineering model of
electrons and ions (from a few 100’s eV to approximately 1 MeV) that include the thermal plasma
distributions as well as bulk flow effects in the
distant magnetotail.
Meteoroid Engineering Model (MEM)
Organization: University of Western Ontario; MSFC Principal Investigators: Jim Jones; Bill Cooke, Heather Lewis
Objectives:
- Develop a universal model applicable to Earth-orbiting and
interplanetary spacecraft for
“sporadic” (or “background”) and stream meteoroids;
- Model is “physics-based” so Earth observations are only used
for validations. Model also allows for extrapolation to other locations that is not possible with
existing empirical models;
- Existing models yield only decent results for spacecraft in
LEO. Not valid at all for fixed
orientation spacecraft like NGST, MAP, etc.
Electronic Properties of Materials with Applications to
Spacecraft Charging
Organization: Utah St Principal Investigator: J.R. Dennison
Status: Continuous Ongoing Effort; See “Charge Collector”
Objectives:
- Determine the electrical properties for a wide array of
spacecraft materials and integrate this new information into relevant NASA databases and models;
- Specifically, measure secondary and backscattered electron
total yields from electron-induced, ion-induced and photon-induced energies;
- Samples include conductors, insulators and spacecraft specific
materials.
Geospace Environment Implications for Spacecraft
(Thermosphere/Ionosphere)
Organization: AFRL Hanscom Air Force Base Principal Investigators: Frank Marcos; Dwight Decker
Status: Scheduled Completion - July, 2004
Objectives:
- Develop density and solar proxy databases from orbital drag
data;
- Improve solar EUV inputs to replace F10.7 in MET to improve
MET density versus altitude and latitude;
- Develop data fusion techniques and algorithms;
- Develop a high-latitude scintillation and forecast tool.
LEO Plasma Environment Variability
Organization: Jacobs Sverdrup Principal Investigator: Joe Minow
Status: Scheduled Completion - June 2005
Objectives:
- Provide a plasma variability database for use in spacecraft
design, mission planning and spacecraft operations;
- Develop models to specify statistical variations of plasma
parameters (Ne, Te, Ni, Ti) in LEO environments (~200 km to 2000 km).
Empirical Low Energy Ion Flux Model for the Terrestrial
Magnetosphere
Organization: Jacobs Sverdrup Principal Investigator: Joe Minow
Status: Scheduled Completion - June, 2005
Objectives:
- Develop an empirical ion model of the Earth’s magnetosphere
incorporating ion flux observations from multiple satellites in a statistical flux model;
- Provide an improved predictive tool of magnetospheric ion flux
values for varying geomagnetic disturbance levels in the geospace environment;
- Incorporates ion flux observations from multiple spacecraft in
a single statistical flux model that will yield a simple technique for assimilating data from
networks of research spacecraft.
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