CATAC Update on the Thirty Meter Telescope

By Michael Balogh (CATAC Chair)
(Cassiopeia – Autumn/l’automne 2017)

In July, the hearing officer considering the contested case hearing regarding TMT’s site permit on Mauna Kea issued her decision, that the permit should be granted under a number of conditions. The full report is available at This was welcome news. The next step is for the Board of Land and Natural Resources to receive written and oral responses to these recommendations, and finally issue a decision on whether or not to approve the permit. This decision is expected in October. The decision may be appealed directly to the Hawaii Supreme Court within a 30-day window; if the Court decides to hear the case, they must give the matter priority and issue a decision within one year.

The only other pending legal issue is an appeal related to the vacating of consent for the UH-TIO sublease. A ruling on the appeal could come before the end of the year.

There is a generally optimistic sense that the prospects for construction in Hawai’i have greatly improved. There are still remaining issues, but the climate for resolving them has become much more constructive. The election of Harry Kim as mayor of Hawai’i County has changed the political dynamic. His vision of Maunakea as a “World Peace Park” is providing an opportunity for all interested parties to come together.

With the Project expected to obtain all necessary approvals for construction on ORM, as a backup site in the case Maunakea construction proves impossible, the site selection seems likely to be settled by early 2018. It remains true that the Project does not yet have sufficient committed funds to complete construction, a situation that has not been helped by the delay in the start of construction. At the CASCA meeting in May 2017, several people expressed a desire to learn more about the Project’s plans for managing this shortfall, and what the implications are for completion of construction. In response to this, we have invited Ed Stone (TIO Executive Director) and Gary Sanders (Project Manager) to address the CASCA community directly, via a 2 hour Webex session. This will take place at 3:30- 5:30pm, EDT, on September 26. All CASCA members are invited to participate. If you have previously participated in a CATAC Webex session, you will automatically receive an invitation to this discussion. If you would like to be added to the list of participants, please email Slides will be made available to registered participants prior to the meeting; the presentation itself will be limited to ~30 minutes to leave plenty of time for your questions.

CATAC would like to remind you of the TMT Science Forum happening in Mysore, India Nov 7-9, 2017. The main purpose of this meeting is to discuss concepts for the next instrument to be built for TMT, after the first light instruments. The International Science Development Teams (ISDTs) will be leading these discussions, and we would like to thank ACURA for making funds available to help offset travel costs for Canadian University-based ISDT members and invited speakers. This activity is expected to continue after the Forum, culminating in a series of white papers that will be presented to the SAC, who will make a recommendation for funding studies of the next TMT instrument. The white papers will focus on the science aspects of possible capabilities, and will be due in March of next year. CATAC hopes to play a role here in consulting with the community to present our SAC members with a Canadian perspective. This is a critical activity for Canada and we welcome community engagement. Please contact CATAC (, your SAC representatives (Tim Davidge, Bob Abraham, Stan Metchev, Doug Welch) or any of the ISDT members for more information.

Finally, CATAC member Christine Wilson (McMaster) has resigned from CATAC to make best use of the research time afforded by her recent Killam fellowship. We are grateful for her dedicated service and advice during her term on CATAC. We expect to appoint a replacement in short order.

Michael Balogh
Chair, CATAC

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