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Table B.2
Current best estimates (CBE) for the mass of the interplanetary NEO SmallSat.
| Subsystem | Components | Mass, kg |
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| Science instrument | Synthetic tracking camera | 2.8 |
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| Navigation, communication | Iris transponder; high gain antenna | 1.0 |
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| Command, data handling | LEON processor and board | 0.25 |
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| Attitude control system | BCT XACT with sized-up wheels | 0.85 |
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| Propulsion | Busek thrustes (4x) | 4.8 |
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| Thermal | Radiator | 1.0 |
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| Power | Solar panels, batteries, EPS | 0.86 |
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| Mechanical | Structure | 2.0 |
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| Total Dry | 13.2 | |
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| Total Wet (without margin) | 22.2 | |
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