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Instrument and Sensing Technology
Telescope Technology Program
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Telescope Technology Program Goals and Objectives
The NASA OSAT Telescope Technology Program has a goal of developing
and demonstrating design, materials, processing, fabrication and test technology
to enable lightweight, low cost instrument and telescope systems for future
NASA missions and commercial applications. This is a new program in FY'94,
the initial emphasis is on integrated ultralight optical instrument systems
and low mass, low temperature IR telescope systems.
Telescope Technology Program Accomplishments
Reflector Selected for Earth Observing System (EOS) Microwave Limb Sounder
(MLS)!. This technology was developed under the NASA OSAT Precision
Segmented Reflector (PSR) program, which ended in fiscal year 1992.
- The Telescope Technology program co-funded the development of innovative,
integrated optics for the Planetary
Integrated Camera-Spectrometer (PICS). See also the NASA Press RELEASE:
95-195, REVOLUTIONARY NEW MINIATURE SENSOR SYSTEM DEVELOPED (10/27/95).
a remarkable example of faster, better, cheaper engineering, JPL has developed
a state-of-the-art Cryogenic Optical Test Facility (COTF). The COTF advanced
from concept development to operation in 12 months. The total cost was
$800K, provided jointly by OSAT, OSS and JPL institutional funding. JPL
minimized development costs by utilizing existing hardware (interferometer,
vibration isolation legs, crane, pumps, etc.) from previous programs whenever
possible. Janis Research developed the large helium test Dewar. The optical
axis of the COTF is oriented vertically and optics up to 1.3 meter in diameter
can be tested via phase shifting interferometry in either the "looking
up" or "looking down" orientation. For more information
see the STTF
- SIRTF Telescope Test Facility from the Low
Temperature Science & Engineering Group at JPL.
50 centimeter diameter beryllium test mirror developed by the Telescope
Technology Program last year and characterized at liquid helium temperature
in the small test facility at the Ames Research Center is being utilized
to checkout and calibrate and the COTF. In initial tests interoferometric
data was in excellent agreement with that obtained previously.
Telescope Technology Testbed (ITTT) Highlight (October 1994)
Telescope Technology Program Progress Reports
For a good overview of this activity see:
Quarterly Progress Reports
- PAMELA (Phased Array Mirror, Extendable Large Aperture) Telescope Testbed.
This testbed consisting of 36 mirror segements recently operated successfully.
This effort is supported in part by OSAT and is being conducted at the
NASA Marshall Spaceflight Center. More information will be available soon.
none at the moment...
Aditional Sources of Information
Created August 24, 1994. Last update: July 16, 1996. Maintained by
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