The Thirty Meter Telescope (TMT) International Observatory (TIO) is pleased to announce that the Multi-Object Diffraction-limited High-resolution Infrared Spectrograph (MODHIS) has successfully completed its Conceptual Design Review (CoDR).
The Thirty Meter Telescope (TMT) International Observatory (TIO) is delighted to announce the successful completion of the Preliminary Design Review 1 (PDR-1) for the Wide Field Optical Spectrograph (WFOS), held on August 7–8, 2025, at the TIO Project Office in Pasadena, California, and via Zoom.
The Tertiary Mirror Support System and Positioner Assembly (M3SSPA) has now successfully completed its Preliminary Design Phase after the Preliminary Design Review (PDR) was held at NOIRLab in Tucson, Arizona on August 11–12, 2025.
The Thirty Meter Telescope support and positioner assembly for its secondary mirror’s design is now complete
Timelapse videos of the testing of the segment support assembly.
TIO passed the final design review of systems designed to cool the telescope and instruments during operations.
The Alignment and Phasing System (APS) team has progressed to the Final Design stage after successfully completing the Preliminary Design Review (PDR) for the APS Optical Bench and Instrument Control System (ICS).
The Thirty Meter Telescope (TMT) International Observatory (TIO) successfully completed a design review for a critical component of the primary mirror segment control system.
The TIO Secondary Mirror Support System and Positioner Assembly team successfully completed its Preliminary Design Review on 2024 July 15–17.
The TIO Monrovia Lab has recently received significant shipments of 140 warping harness cables and eight segment actuators from India TMT Coordination Center (ITCC).
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