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The BST CDH system consist of two main parts: the OBC-100 and the ACC-100. The OBC- 100 is responsible for scheduling all tasks and coordinating TMTC functions of the bus whereas the ACC-100 which is integrated in the same housing runs the attitude algorithm and connects to all ADCS components. Optionally an auxiliary processor can be attached to the OBC-100 that allows centralized operation via a Linux operation system.

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Last updated: 2022-08-01

Command and Data Handling System (CDH)



lead time
12 mo
176 mm
94 mm
55 mm
870 g
5 V
operating temperature
-20 to 40 C
storage temperature
-30 to 50 C
5 yr
radiation tolerance
10 krad


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