The below timeline reflects the status of the project as of June 2019.
This information will be updated when a forward path to construction has been defined by TMT partners, taking into account the outcome of the on-going Decadal Survey on Astronomy and Astrophysics (Astro2020).
Enclosure is completed and ready to be shipped from Canada.
Gov. David Ige and the Thirty Meter Telescope International Observatory (TIO) announce that construction of the Thirty Meter Telescope (TMT) will begin the week of July 15, 2019.
Enclosure base is complete and ready to accept the upper part of the dome.
The telescope enclosure started to be installed on the its base at the TMT site.
M2 cleaning system ready to ship to the observatory
The coating chamber is built and ready to ship to the observatory
The fabrication of the telescope structure is completed in Japan and ready to ship to the observatory
The last segment blank is completed and sent for polishing
M3 cleaning system ready to ship to the observatory
The coating chamber for the secondary and tertiary mirrors is ready to be shipped to the observatory
The Observatory Enclosure is built on site.
The secondary mirror is built and sent to the observatory
M1 cleaning system ready to ship to the observatory
The control system for the primary mirror is built and ready for integration
Power is generated on site and in its final form.
The Observatory facility building is complete.
The phasing system for the primary mirror is completed and ready for shipment to the observatory
The tertiary mirror is built and ready to be shipped to the observatory.
The last segment is polished and sent off for ion beam figuring
The primary mirror phasing system is fully integrated to the observatory and ready for operations.
First on sky test using 40 segments at prime focus completed
First on sky test using 40 segments at Nasmyth focus completed
The last segment is fully ready and ready to be integrated to its control system.
Primary mirror with 492 segments aligned and phased on sky with APS, M2 and M3
Observatory is completed and ready for science!!
