Purpose: To estimate total Space Segment Cost including non-recurring and recurring cost of components as well as subsystems for earth orbiting unmanned spacecraft.
Publisher: USAF, Space Division, Los Angeles AFB
Model Description: (see attached schematic)
By using physical descriptions of components, the model's CERs develop component NR and Recurring cost. Other CERs develop support costs such as Program Management, Systems Engineering, Data, etc.
Input Variables: component weights
number of sensors
volume, design life, BOL power
number of solar cells, battery capacity
power output, analog electronics weight
total spacecraft dry weight
Output: NR and T1 cost for components
NR and T1 cost for integration and assembly
NR and T1 cost for ferrite devices
NR AGE; launch and orbital operations support
NR and T1 for Program Management, Systems Engineering, Systems Test and Data.
Data Source: The database consists of 9 military, 6 NASA, and 3 commercial satellite programs with start dates between 1964 and 1979
Point of Contact: Publisher
User Community: From managers interested in top-level estimates to analysts needing detailed information on CER development.
Principle Ground Rules/ Estimates are in 1986 dollars excluding fee. Costs cover all NR
Assumptions/Limitations and Recurring Spacecraft cost including launch operations (relating to S/C only) and orbital support.
Equipment: No equipment other than a calculator is needed. Macros are provided for uses on PCs running LOTUS 1-2-3.
CER Format: Both single and multivariate using linear and log/log relationships. An interesting not is the introduction of the "PING" factor with the log/log relationship.
Test Results/Evaluation: TBD
UNMANNED SPACE VEHICLE COST MODEL 6TH EDITION
MODEL NONRECURRING COST FLOW
INPUTS
Weight
Sensor Types/Wt
Torque Methods/Wt /Vol.
Wt/BOL Power
Wt*BOL Power/# cells
Wt*BOL Power
Wt*BOL Power
Wt*BOL Power/Battery Cap S/C $
Power Output/TWTA/Subsystem
Weight/Design Life Space
Weight Vehicle +
Weight/Design Life AGE $
Weight/Comm. Mission
Wt/Orbit/Subsystem
Dry Wt/Stabilization Type S/C +
Comm. +
I&A $
Power Output/TWTA/Subsystem
Weight/Design Life
Weight Comm. $
Weight/Design Life
Weight/Comm. Mission
Wt/Orbit/Subsystem
UNMANNED SPACE VEHICLE COST MODEL 6TH EDITION
MODEL RECURRING COST FLOW
INPUTS
Space Vehicle Dry Wt/Mission
Weight/Manner
Sensor Types, Wt
Vol./Design Life/Wt
Wt/Manned
Area/BOL Power/# cells $
Wt*BOL Power
Wt*BOL Power
Wt*BOL Power
Weight
Weight/Sync Orbit
Weight/Output Power
Suite Weight
Weight
Total Impulse
+ Quantity
Weight
Weight/Sync Orbit $
Weight/Output Power
Component Power
Suite Weight
Weight
Space Vehicle Dry Wt $