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3 System-Level Budget Allocations (MC, JB)
3.1 Mass (JB, MK)
Table 2: Mass Budget Allocation outlines the mass budget allocation of the INSPECT system,
including the current best estimate (CBE) and margins of the subsystems. Note that the mass
budget below does not include Halo and SPHERES masses, 4.525 kg and 4.828 kg, respectively
(including batteries). In addition, masses in Table 2 do not include component wiring, which will
reduce the total remaining mass when finalized.
Table 2: Mass Budget Allocation
Mass Budget
Subsystems
(components and
structures and
avionics)
Allocated
(kg)
Allocated Less 10%
Margin (kg)
CBE (kg)
Remainin
g (kg)
Remainin
g (%)
VERTIGO
2
1.8
1.732
0.068
3.78%
Optical Rangefinder
2
1.8
0.828
0.972
54.00%
Thermographic
Camera
1
0.9
0.419
0.481
53.44%
CMGs
6
5.4
5.1
0.3
5.56%
Total Allocated Mass (kg)
11
Total Allocated Mass Less 10% Margin (kg)
9.9
Total CBE Mass (kg)
8.079
Total Remaining (kg, %)
1.82
18.39%
3.2 Power (JB)
Table 3: Power Budget Allocation outlines the power budget allocation (in terms of average and
peak power) of the INSPECT system, including the current best estimate (CBE) and margins of
the subsystems.
Table 3: Power Budget Allocation
Power Budget
Subsystems
VERTIGO
Optics
Mount
May 15, 2014
Allocated
Peak
Power (W)
5
Allocated
Less 10%
Margin (W)
4.5
CBE
Avg
Power
(W)
1.4
Remaining
(W)
3.1
(%)
68.89%
16.831 SPHERES INSPECT Design Document
CBE
Peak
Power
(W)
4.5
Remaining
(W)
(%)
0
0.00%
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