Mathematical model of the ASTRAEUS-01 spacecraft and its subsystems.
Interface Control Document
mode
quantity
mathematical variable name
model variable name
justification
input
moment of inertia
$...$
...
required for attitude control calculations
output
attitude
$...$
...
used in effective area calculations
output
position
$...$
...
used in effective area calculations
mode
quantity
mathematical variable name
model variable name
justification
input
temperature
$...$
...
required for battery performance calculations
input
attitude
$...$
...
required for effective area calculations
input
position
$...$
...
required for effective area calculations
output
heat dissipated by power electronics
$Q_{EPS}$
...
used in thermal balancing calculations
output
electrical power delivered to payload camera module
$P_{PC}$
...
used in computational load calculations
output
electrical power delivered to payload data handling module
$P_{PDH}$
...
used in computational load calculations
output
electrical power delivered to communications module
$P_{comms}$
...
used in computational load calculations
Other Computational Electronics
mode
quantity
mathematical variable name
model variable name
justification
input
electrical power delivered
$P_{PC}$
...
required for computational load calculations
output
heat dissipated by payload camera module
$Q_{PC}$
...
used in thermal balancing calculations
mode
quantity
mathematical variable name
model variable name
justification
input
electrical power delivered
$P_{PDH}$
...
required for computational load calculations
output
heat dissipated by payload data handling module
$Q_{PDH}$
...
used in thermal balancing calculations
mode
quantity
mathematical variable name
model variable name
justification
input
electrical power delivered
$P_{comms}$
...
required for computational load calculations
output
heat dissipated by communications module
$Q_{comms}$
...
used in thermal balancing calculations
mode
quantity
mathematical variable name
model variable name
justification
input
uniform temperature
$T$
...
required for thermal cycling calculations
output
moment of inertia
$...$
...
used in attitude control calculations
mode
quantity
mathematical variable name
model variable name
justification
input
attitude
$...$
...
used in effective area calculations
input
position
$...$
...
used in effective area calculations & Earth's shadow check
input
heat dissipated by power electronics
$Q_{EPS}$
...
required for thermal balancing calculations
input
heat dissipated by payload camera module
$Q_{PC}$
...
required for thermal balancing calculations
input
heat dissipated by payload data handling module
$Q_{PDH}$
...
required for thermal balancing calculations
input
heat dissipated by communications module
$Q_{comms}$
...
required for thermal balancing calculations
output
uniform temperature
$T$
...
used in battery performance and thermal cycling calculations