International Sat. n°: |
USA satellite n°: |
Also called: Transit-O 11
Launch data:
| Designation | 77106A |
| Launch date | 28 Oct 1977 |
| Launch site | Va, SLC-5 |
| Launch vehicle |
Scout-D1 |
| Mission | Navigation, technology |
| Perigee / Apogee | km |
| Inclination | ° |
| Period | min |
Spacecraft data:
| Prime contractor | Johns Hopkins University
Applied Physics Laboratory (APL) |
| Customer | USN |
| Platform | |
| Mass at launch | kg |
| Dry Mass | kg |
| Basic shape | |
| Dimension | |
| Solar array | 4 |
| Stabilization | Gravity stabilized |
| Equipment | Transit transponder, SATRACK transponder |
| Design lifetime | |
|
Decay:
| Out of service: | |
| Cause: | |
| Descent date: | |
| Lifetime: | |
|
Mission details:
Transat (Translation Satellite) was the Transit-O 11
satellite, modified to serve a dual role in both the Transit navigation system
and the experimental SATRACK (Satellte Tracking) system. SATRACK served to
increase the accuracy of the Trident-C4
missiles. When working in the SATRACK mode, it received, translated amd
retransmitted GPS
satellite signals to simulate an orbiting test missile and thus permitted tu
evaluate the SATRACK ground equipment.
When Transat did not work in SATRACk mode, it served as a Transit navigation
satellite.
The SATRACK equipment consisted of two redundant SATRACk translators
and antenna elements on four symmetrical booms to provide the antenna patterns
of a Trident missile.
Ref.: #14 - update: 05.05.05