Attitude Determination & Control Assembly
Sensors and reaction wheels that keep the antenna farm pointed at Earth centre to within 0.1° while the arrays track the Sun. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
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Bill of materials
5 top-level lines · 24 rows shown · 429 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Reaction Wheel Assembly 4 parts | gps-satellite-reaction-wheel | 4× | 4 | 27 | assembly |
| 1.1 | Stator Assembly 3 parts | stator-assembly | 1× | 4 | 3 | assembly |
| 1.1.1 | Stator Core (laminations) | stator-core | 1× | 4 | — | part |
| 1.1.2 | Copper Winding | copper-winding | 1× | 4 | — | part |
| 1.1.3 | Slot Insulation | stator-insulation | 1× | 4 | — | part |
| 1.2 | Rotor Assembly 4 parts | rotor-assembly | 1× | 4 | 19 | assembly |
| 1.2.1 | Rotor Shaft | rotor-shaft | 1× | 4 | — | part |
| 1.2.2 | Rotor Core | rotor-core | 1× | 4 | — | part |
| 1.2.3 | Neodymium Magnet | neodymium-magnet | 16× | 64 | — | part |
| 1.2.4 | Ball Bearing | ball-bearing | 1× | 4 | — | part |
| 1.3 | Ball Bearing | ball-bearing | 2× | 8 | — | part |
| 1.4 | Hall Sensor | hall-sensor | 3× | 12 | — | part |
| 2 | Star Tracker 4 parts | gps-satellite-star-tracker | 2× | 2 | 4 | assembly |
| 2.1 | CMOS Image Sensor | image-sensor | 1× | 2 | — | part |
| 2.2 | Lens Assembly | camera-lens | 1× | 2 | — | part |
| 2.3 | Bare PCB | pcb-bare | 1× | 2 | — | part |
| 2.4 | Compute SoC Module | soc-module | 1× | 2 | — | part |
| 3 | Inertial Measurement Unit | gps-satellite-imu | 1× | 1 | — | part |
| 4 | Attitude Control Computer 4 parts | gps-satellite-adcs-computer | 1× | 1 | 309 | assembly |
| 4.1 | Bare PCB | pcb-bare | 2× | 2 | — | part |
| 4.2 | Compute SoC Module | soc-module | 1× | 1 | — | part |
| 4.3 | SMD Passive (R/C/L) | smd-passives | 300× | 300 | — | part |
| 4.4 | Connector | connector | 6× | 6 | — | part |
| 5 | Magnetorquer Rod | gps-satellite-magnetorquer | 3× | 3 | — | part |
Used in 1 assembly
Sourcing — likely vendors
Companies that make this · indicative price $0.50–$100 · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| 🇨🇳Foxconn foxconn.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| flex.com ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| dixoninfo.com ↗ | Noida, IN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| bydelectronic.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |