This dataverse contains the configuration controlled documentation for the SOFIA Telescope Assembly subsystem 1200 Secondary Mirror Assembly (SMA): The SMA provides fixed, scanned and chopped mirror operations as well as focus and alignment in flight.

The SOFIA TA Technology and Operations Archive Manual contains a guide how to use the archive as well as an overview of the SOFIA TA Hardware Breakdown Structure (HBS).

The SMA component is organized according to the HBS and contains subsystems as listed in the following tree structure:

0000 SOFIA Telescope Assembly/1000 Optical Assembly/1200 Secondary Mirror Assembly
├── 1201 SMA Mass Dummy
├── 1202 Secondary Mirror Mechanism Upgrade
├── 1210 Secondary Mirror (SiC)
├── 1220 Tilt Chopping Mechanism
│   └── 1222 Tilt Chopping Mechanism Upgrade
├── 1230 Focus Centering Mechanism
│   └── 1232 Focus Centering Mechanism Upgrade
├── 1240 SMA Control System
│   ├── 1241 Junction Box
│   ├── 1242.2 SMCU Secondary Mirror Control Unit Upgrade2
│   ├── 1243.1 TCMU Tilt Chopping Mechanism Unit Upgrade
│   └── 1245.0 CIU Cavity Interface Unit
├── 1250 SM Container
├── 1260 SM Reference Mirror SMRM
├── 1270 SM Protective Handling SMHT
└── 1280 SM Button Assembly
    └── 1281 Scattercone
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1201 SMA Mass Dummy
May 28, 2026
Deutsches SOFIA Institut, 2026, "1201 SMA Mass Dummy", https://doi.org/10.18419/DARUS-6020, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1201 SMA Mass Dummy (SMAD). The SMAD component is organized according to the SOFIA TA Hardware Breakdown Structure (HBS) as described in the SOFIA TA Technology and Operations Archive Manual within the following path: 0000 SOFIA Telescope Assembly/1000 Optica...
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