Pointing & Momentum Control
AssemblyReaction wheels, gyros, and star trackers that slew the observatory between targets and hold it steady enough for the fine guidance loop to deliver milliarcsecond pointing. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Pointing & Momentum Control
4 top-level lines as of r161492| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Reaction Wheel Assembly 5 parts | space-telescope-reaction-wheel | 6× | 6 | 0 | assembly |
| 2 | Hemispherical Resonator Gyro | space-telescope-gyro | 2× | 2 | · | part |
| 3 | Star Tracker | space-telescope-star-tracker | 3× | 3 | · | part |
| 4 | Attitude Control Electronics 4 parts | space-telescope-acs-computer | 1× | 1 | 0 | assembly |