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Table 6 Detailed mass budget of the MAQRO payload

From: Macroscopic Quantum Resonators (MAQRO): 2015 update

Items & units CBE mass (kg) Maturity margin CBE + margin
Accelerometer sensor units 4 5% 4.20
Accelerometer control units 12 5% 12.60
Power control unit 3 5% 3.15
Heat shield (incl. struts, inserts and launch locks, protective cover and margin) 10 50% 15.00
Shield baking: heater + power unit (optional) (+5) 50% (+7.50)
Optical bench 6 30% 7.80
CMOS readout electronics 2 100% 6.00
IR spatial mode generation and filtering 3 100% 6.00
Buffer-gas chambers + gas + loading 20 100% 40.00
Laser assembly (IR) 12 10% 13.20
Laser assembly (UV) 6 100% 12.00
Phase-meter 4 25% 5.00
Payload processor (data-management unit (DMU)) 8 10% 8.80
Diagnostic elements (sensors, …) 10 50% 15.00
Assembly & interface equipment 7 20% 8.40
Harness 13 20% 15.60
Total: 100 (+5) 30% avg. 131 (+8)