MU

• ASPERA-3 Proposal, Part I: Scientific and Technical Plan, ~865 kb, 50 pages
• DPU IDFS Design Document, ~356 kb, 145 pages

The Main Unit refers to the Data Processing Unit for the ASPERA-3 ELS, NPI, NPD, and Scanner instruments, and is the interface to the spacecraft. IMA has a separate DPU and IMA data simply passes through the MU DPU.

There are 7 Virtual Instruments for the Main Unit:

• 1 Solar Sensor Data
  1. MU Solar Sensor information of 2 sensors, all scalars: 8 bits per sample (MUSOLAR, for MU SOLAR sensor data)
     NOTE: MUSOLAR data is only available when the scanning unit is rotating. The scanning unit started rotating January 2006.
  
  
• 6 Engineering Monitors
  1. 30 8-bit Engineering Monitors: 8 bits per sample (MUENG8A, for MU ENGineering 8-bit monitors)
  2. 18 8-bit Engineering Housekeeping Measurements: 8 bits per sample (MUENG8B, for MU ENGineering 8-bit housekeeping data)
  3. 22 16-bit Engineering Measurements: 16 bits per sample (MUENG16, for MU ENGineering 16-bit data)
  4. 1 32-bit Engineering Measurement: 32 bits per sample (MUENG32, for MU ENGineering 32-bit data)
  5. 34 1-bit Status Measurements: 1 bit per sample (MUENGS1, for MU ENGineering Status 1-bit data)
  6. 12 Multi-bit Status Monitors: 8 bits per sample (MUENGSM, for MU ENGineering Status Multi-bit data)