Terra at 10 The EOS Flagship Eric Moyer NASA/Goddard Space Flight Center Greenbelt, Md. 20771 Photos provided by Al Lampe May 11, 2010 Goddard Space Flight Center
The satellite’s name “Terra,” meaning Earth, was the winning entry in a nationwide student essay contest won by a high school student from St. Louis, Missouri.
A Walk down Memory Lane…. What did it take to build Terra?
Power Equipment Module Batteries
The equipment modules were then integrated on to the Primary Structure The equipment modules were then integrated on to the Primary Structure Communications Equipment Module Power Equipment Module Primary Structure
Guidance Navigation and Control Subsystem
Guidance Navigation and Control Subsystem Star Trackers Reaction Wheel Assembly
Navigation TDRS On-board Navigation System (TONS) Performance has exceeded requirements
ASTER Instrument METI and ERSDAC, Japan
CERES Instrument Langley Research Center, Virginia
MISR Instrument Jet Propulsion Laboratory, California
MODIS Instrument Goddard Space Flight Center, Maryland
MOPITT Instrument Canadian Space Agency and University of Toronto, Canada
So what did it take to build Terra? A lot of dedication, technology and teamwork!!!
View of Terra Equipment Modules Technology and Teamwork
View of Terra Instruments Technology and Teamwork
Technology and Teamwork Terra Spacecraft was built by Lockheed Martin at the Valley Forge, Pennsylvania facility and managed by NASA Goddard Space Flight Center
Terra moved to the launch site in California
Spacecraft on Transporter bagged for shipment
Terra flew on a C-5 aircraft from Dover Air Force Base, Delaware to Vandenberg Air Force Base, California, where it was processed and launched.
Transportation System outside Payload Processing Facility at Vandenberg AFB, California
Terra spacecraft being prepared for installation on its Three-Axis Positioner (TAP) TAP
After testing and inspections, Terra received a “GO FOR LAUNCH”!
Preparing Terra for positioning on its Payload Adapter Terra: Weight – 5190 kg Diameter – 3.5 meters Length – 6.8 meters
Terra mounted to its adapter is then installed in a Launch Vehicle Fairing. Fairing Adapter
The Fairing was positioned on top of the Atlas rocket inside the building.
Terra Launch December 18, 1999
Terra’s systems and Instruments were checked successfully and declared operational.
Taking Care of Terra • The Flight Operations Team (FOT): • evaluates Terra’s health and safety, 24 hours a day, 7 days a week, • performs 27-28 contacts thru TDRS daily • ensures that all the science data are downlinked (99.05 % data capture) • maintains Terra’s orbit by doing maneuvers • 25 Inclination Maneuvers • 58 Drag Make Up Maneuvers • The instrument teams work with the FOT to manage the operation of the instruments.