This document summarizes 25 years of space and technology projects supported by NASA in polar regions including Antarctica and the Arctic. Some key accomplishments include the first computers, satellite phone calls and emails from Antarctica in 1984. Other milestones include the first long duration balloon flight from Antarctica in 1988, establishing satellite communication links to Antarctica in 1994, and conducting the first classroom lesson at the North Pole in 2001 using portable technology. The document also describes solutions for enabling students to process satellite weather data in real-time using early PC technology.
23. This message comes to you from Goddard Space Flight Center, via the First South
Pole Satellite Data Relay Link – ATS-3 to South Pole - Nimbus 7/Landsat 4&5 to
McMurdo - Intelsat to Washington, DC. ( The only polar-orbiting Space Shuttle)
50. Resurrect a Tumbling Satellite
Problem: How to command a Tumbling satellite
when its internal power sources are dead
Background: Commanding from Around the earth was
ineffective for almost three years. The satellite
condition was unknown.
Perhaps the thermal expansions have released the
short but with tumbling the arrays are not lit by Sun
long enough to power up the Spacecraftwas shorted
out due to a thermal expansion
Solution: Send commands from Antarctica while
Spacecraft is illuminated by Albedo
92. NASA at the North Pole
Problem: How to make ground truth measurements of Sea Ice near 90N
Background:
• Correlate surface properties Satellites can measure to sea ice mass
• Sea Ice near 90N is not accessible by normal means
• Takes too long to do field work with a normal team
Solution:
• Use a team of college students and professors
• Have experts layout the procedures and provide critical equipment
• Adapt to existing Russian Commercial Services
• Native Americans provide Chartered logistics consistent with their grant
113. Store-and-Forward Networking Relay stores data
while not in view of
Earth
Disruption Tolerant Networking
(DTN) is an effort to develop and
standardize a message-
based, store-and-forward system
with reliability, security, and
quality of service.
Relay transmits
data when in view
of Earth
Relay Range
133. 1993: This $750k system led us to develop a PC-based Weather Imaging system
134.
135. NASA GMS Weather Imaging System
set up in Chiang Mi, Thailand - 1993
136. Students Processing Satellite Data
Problem:
How to enable students to process satellite weather image data in realtime
Background:
• NOAA intends for users to have access to realtime weather data
• Cost a fortune to collect 2Mbps & process it with mainframe computers
• Too complicated for students to handle
Solution:
• Tailor the RF Receiver, Bit Sync, Frame Sync to one job
• Put these functions on PC boards inside a PC
• Develop an 8-bit version of the Processing Software for a 486 PC
• As PCs get more powerful the processing gets faster, better, cheaper