ISS Software

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ISS Software
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Editor (Pseudo-Telemetry)

• Simple text-based output of data
• Environment data
• Flight software data
• Called from simulator
• Must only use telemetry data

3
__________________________________________________
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______________________________ T Sim
0.00

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SSF ENVIRONMENT STATE
SSF NAVIGATION STATE SSF
VEHICLE PARAMETERS -------------------
-------------------------------------------------
-------------------------------------------------
--------- r v
r v
mass 0.0
-3371490.50 5851.5657
0.00 0.0000 xcg 0.00
-5839592.84
-3378.4031 0.00
0.0000 ycg 0.00
0.00 3668.6464
0.00 0.0000 zcg
0.00 mag
6742981.00 7688.5236 mag
0.00 0.0000 inertia matrix
force ext self
total r err v err
0.0 0.0 0.0
0.000 0.000 0.000
u 0.00 0.0000 0.0
0.0 0.0 0.000
0.000 0.000 d 0.00
0.0000 0.0 0.0
0.0 0.000 0.000
0.000 c 0.00 0.0000

mag 0.000 0.000 0.000
mag 0.00 0.0000
------------------------------------------ torq
ue ext self total
SSF
ORBIT PARAMETERS 0.000
0.000 0.000
----------------------------------
-------- 0.000 0.000
0.000
environment navigation
0.000 0.000 0.000
quality indicator imu mis
apogee 364.81 0.00 mag
0.000 0.000 0.000 sv bad
u 7200.0 perigee
364.81 0.00
att invalid d
7200.0 inclination 28.50 0.00

wb invalid c 7200.0
long node 240.00 0.00

mag 0.0 arg perigee
171.42 0.00

arg latitude 0.00 0.00
y -0.00 p -0.000
y 0.00 p 0.000
latitude 0.000 0.000 p
0.00 q 0.000 p 0.00
q 0.000 longitude
-120.000 0.000 r -90.00 r -0.065
r 0.00 r 0.000

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___________________________________ SSF
NAVIGATION AND POWERED FLIGHT
SSF DAP PARAMETERS SSF
SYSTEM STATUS ---------------------
-------------------------------------------------
-------------------------------------------------
------- q_im_i

mode active
0.00000000
gnc
initialization false
0.00000000 dt extrap (env-fsw)

0.00000000
nav sx. 0.00000000

0.00000000 imu sx.
0.00000000
------------------------------------------


SSF GNC ORU STATUS ch 01 02 03 04
05 06 07 08 09 10 11 12
-------------------------------
----------- sat 0 0 0 0 0 0 0 0 0 0
0 0
availability availability
ant 1 1 1 1 2 2 2 2 3 3 3 3
isa1
not_available st1 not_available

isa2 not_available st2
not_available

isa3 not_available




st1 st2


v ang 0.000 0.000

h ang 0.000
0.000

mag 0.00 0.00


id 0 0




alp si beta siu beta sil

cmd
0.0 0.0 0.0

actual 0.0 0.0
0.0

rate 0.00 0.00 0.00
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4
Control System Architecture

• Need to implement the following
• Jet_Selection_Logic.adb
• Which thrusters should be turned on / off to
  achieve required torque
• Attitude_Controller.adb
• Calculate attitude error
• ADF-Process_ISA_Attitude_Package.adb
• Calculate new attitude given inertial sensor data