Aquarius Mission Simulation Status

1
Aquarius Mission Simulation Status

• Sab Kim has provided 7 days of simulated
  radiometer output (DN) with telemetry and
  associated ephemeris and attitude data.
• Fred Patt and Joel Gales developed software to
• Read and unpack Sabs daily files
• Output ephemeris and attitude data files (interim
  format)
• Generate radiometer DPU blocks
• Generate ICDS output blocks ()
• Joel developed software to generate Aquarius raw
  data files as expected from CONAE (multiple
  copies of memory).
• () Direct use of ICDS software was problematic

2
Aquarius Mission Simulation Sab Kim
Ancillary Data
Sensor Measurements
Salinity Map
Sensor Telemetry
Sensor Geometry Timing
Instrument Model
Radiative Transfer Model
Surface Measurements
Orbit Output Files
Simulated Orbit/Attitude
Input File
Intermediate Data
Output File
3
Aquarius Mission Simulation Joel Gales and Fred
Patt
Sensor Measurements
Ancillary Data
Salinity Map
Sensor Telemetry
Instrument Model
Radiative Transfer Model
Sensor Geometry Timing
Surface Measurements
Orbital Output Files
Simulated Orbit/Attitude
Radiometer Blocks
Spacecraft Telemetry Simulator
Radiometer DPU Simulator
Science Blocks
Input File
Data Collection Scheduler
ICDS Simulator
Ephemeris File
Intermediate Data
Spacecraft Telemetry
Memory / Downlink Simulator
Downlink Schedule
Downlink Files
Output File
4
To Be Done Now until Launch

• Routine daily generation of Sabs data.
• Use of dynamic reference salinity (already done?)
• Use of actual dynamic ancillary files for both
  simulation and processing.
• Clarification and incorporation of instrument
  telemetry.
• Generation of ephemeris and SAC-D telemetry files
  in CONAE format (once available).
• Scatterometer simulation.
• Include seasonal variation (solar geometry).
• Incorporate instrument characterization test
  results.
• Incorporate noise and error models.

5
Additional Enhancements

• Simulated cold-sky maneuver.
• Multiple downlink stations.
• ?