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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1260 SM Reference Mirror SMRM
May 29, 2026
Deutsches SOFIA Institut, 2026, "1260 SM Reference Mirror SMRM", https://doi.org/10.18419/DARUS-6027, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1260 SM Reference Mirror SMRM (SMRM). The SMRM 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/1...
1240 SMA Control System
May 29, 2026
Deutsches SOFIA Institut, 2026, "1240 SMA Control System", https://doi.org/10.18419/DARUS-6025, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1240 SMA Control System (SMCS). The SMCS 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 Op...
1230 Focus Centering Mechanism
May 29, 2026
Deutsches SOFIA Institut, 2026, "1230 Focus Centering Mechanism", https://doi.org/10.18419/DARUS-6024, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1230 Focus Centering Mechanism (FCM). The FCM 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/10...
1202 Secondary Mirror Mechanism Upgrade
May 29, 2026
Deutsches SOFIA Institut, 2026, "1202 Secondary Mirror Mechanism Upgrade", https://doi.org/10.18419/DARUS-6021, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1202 Secondary Mirror Mechanism Upgrade (SMMP). The SMMP 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...
1200 Secondary Mirror Assembly
May 29, 2026
Deutsches SOFIA Institut, 2026, "1200 Secondary Mirror Assembly", https://doi.org/10.18419/DARUS-6019, DaRUS, V1
This dataset contains the assembly level files for the SOFIA Telescope Assembly subsystem 1200 Secondary Mirror Assembly (SMA). Refer to subsystem datasets in the dataverse collection 1200 Secondary Mirror Assembly for subsystem level files. The SMA component is organized according to the SOFIA TA Hardware Breakdown Structure (HBS) as described in...
1280 SM Button Assembly
May 28, 2026
Deutsches SOFIA Institut, 2026, "1280 SM Button Assembly", https://doi.org/10.18419/DARUS-6029, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1280 SM Button Assembly (SMBA). The SMBA 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 Op...
1270 SM Protective Handling SMHT
May 28, 2026
Deutsches SOFIA Institut, 2026, "1270 SM Protective Handling SMHT", https://doi.org/10.18419/DARUS-6028, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1270 SM Protective Handling SMHT (SMHT). The SMHT 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 Assembl...
1250 SM Container
May 28, 2026
Deutsches SOFIA Institut, 2026, "1250 SM Container", https://doi.org/10.18419/DARUS-6026, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1250 SM Container (SMC). The SMC 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 Optical As...
1220 Tilt Chopping Mechanism
May 28, 2026
Deutsches SOFIA Institut, 2026, "1220 Tilt Chopping Mechanism", https://doi.org/10.18419/DARUS-6023, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1220 Tilt Chopping Mechanism (TCM). The TCM 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...
1210 Secondary Mirror (SiC)
May 28, 2026
Deutsches SOFIA Institut, 2026, "1210 Secondary Mirror (SiC)", https://doi.org/10.18419/DARUS-6022, DaRUS, V1
This dataset contains the subsystem level files for the SOFIA Telescope Assembly subsystem 1210 Secondary Mirror (SiC) (SM). The SM 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 Op...
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