http://cso.caltech.edu/wiki/ 2026-09-20T05:01:55+00:00 http://cso.caltech.edu/wiki/ http://cso.caltech.edu/wiki/lib/tpl/cso/images/favicon.ico text/html 2023-08-29T02:16:31+00:00 http://cso.caltech.edu/wiki/cso/outreach/2017-12-04?rev=1693275391&do=diff 2017-12-04: Public Input Sought on Removal of Caltech Submillimeter Observatory from Maunakea Caltech is proceeding to decommission the Caltech Submillimeter Observatory (CSO) on Hawaii Island's Maunakea. CSO began operations in 1987 and ceased scientific observations in September 2015. text/html 2023-08-28T16:38:50+00:00 http://cso.caltech.edu/wiki/cso/outreach/2021-02-12?rev=1693240730&do=diff 2021-02-21: Update on CSO Decommissioning The Caltech Submillimeter Observatory (CSO) decommissioning team is working with oversight agencies on final plans to remove the facility from Mauna Kea, with Summer 2022 targeted for that work to begin. The final draft of the Site Decommissioning Plan (SDP) was submitted to the University of Hawaii in January 2021 and we anticipate the Mauna Kea Management Board (MKMB) will review it soon at a public meeting. The CSO team will review the input from th… text/html 2023-08-05T12:06:31+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-01-25?rev=1691237191&do=diff January 2023: Caltech Submillimeter Observatory Decommissioning Update Last summer, Caltech began the decommissioning of the Caltech Submillimeter Observatory (CSO) on Maunakea. The removal and restoration of the site is expected to be completed during 2023. A review of what has been accomplished so far and a timeline for the remainder of the decommissioning is described below. text/html 2023-08-05T12:06:43+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-04-06?rev=1691237203&do=diff April 2023: Caltech Submillimeter Observatory Telescope Removal and Decommissioning Update Road Closures Announced Hilo, Hawai'i – April 6, 2023 – Physical removal of the Caltech Submillimeter Observatory (CSO) on Maunakea will begin in late spring. Extensive planning and permitting for the decommissioning and removal have been underway for several years. text/html 2023-08-28T16:37:32+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-06-02?rev=1693240652&do=diff 2023-06-02: Caltech Submillimeter Observatory Telescope Removal Update Hilo, Hawai‘i – June 2, 2023 – Caltech will disassemble the 34-foot diameter telescope mirror from the Caltech Submillimeter Observatory (CSO) on Maunakea and remove it in pieces this summer. The original plan to move it in one piece proved unfeasible. text/html 2023-08-28T16:48:29+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-08-28?rev=1693241309&do=diff 2023-08-28: Removal of Caltech Submillimeter Observatory Telescope from Maunakea Underway Hilo, Hawai‘i – August 28, 2023 – Disassembly of the Caltech Submillimeter Observatory's 34-foot diameter telescope on Maunakea has begun. “Our team has started working inside the observatory to take apart the telescope and get it ready for removal,” Caltech physics professor and Caltech Submillimeter Telescope (CSO) Director Sunil Golwala said. text/html 2023-09-07T20:19:37+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-09-07?rev=1694117977&do=diff 2023-09-07: 120-Ton Crane Headed up Maunakea this Month; Caltech Telescope to Be Removed Hilo, Hawai‘i – September 7, 2023 – The 120-ton crane needed to remove the Caltech Submillimeter Observatory (CSO) telescope from the dome will drive up to Maunakea’s summit in the first part of September, possibly as early as September 8th. Telescope removal will start shortly thereafter, tentatively on September 11th. text/html 2023-09-24T04:45:05+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-09-22?rev=1695530705&do=diff 2023-09-22: Caltech Telescope Removed; Deconstruction to Begin Hilo, Hawai‘i – September 22, 2023 – Earlier this month, the 34-foot diameter telescope was removed from the Caltech Submillimeter Observatory dome on Maunakea. “After much logistical planning, we successfully removed the telescope from the observatory building, allowing deconstruction of the buildings to begin,” Caltech physics professor and Caltech Submillimeter Observatory (CSO) Director Sunil Golwala said. text/html 2023-12-21T20:21:36+00:00 http://cso.caltech.edu/wiki/cso/outreach/2023-12-21?rev=1703190096&do=diff 2023-12-21: Caltech Submillimeter Observatory Telescope Removed; Decommissioning Paused until Spring Hilo, Hawai‘i – December 21, 2023 – Caltech has taken the Leighton Telescope out of the Caltech Submillimeter Observatory (CSO) dome and removed it from Maunakea for shipment to Chile for re-use. Deconstruction of the dome and restoration of the site will resume after the winter. text/html 2024-04-10T19:36:31+00:00 http://cso.caltech.edu/wiki/cso/outreach/2024-04-10?rev=1712777791&do=diff 2024-04-10: Caltech Submillimeter Observatory Decommissioning to Restart Hilo, Hawai‘i – April 10, 2024 – Caltech will resume the decommissioning of the Caltech Submillimeter Observatory (CSO) in mid-April. “The CSO decommissioning is well underway. After a winter weather pause, we will resume the process,” said Caltech physics professor and CSO Director Sunil Golwala. text/html 2024-05-31T16:39:41+00:00 http://cso.caltech.edu/wiki/cso/outreach/2024-05-31?rev=1717173581&do=diff 2024-05-31: Caltech Submillimeter Observatory Buildings Removed Hilo, Hawai‘i – May 31, 2024 – The decommissioning of the Caltech Submillimeter Observatory (CSO) has made significant progress after restarting late April, with removal of the telescope dome and other buildings now complete. text/html 2024-07-02T15:51:47+00:00 http://cso.caltech.edu/wiki/cso/outreach/2024-07-02?rev=1719935507&do=diff 2024-07-02: Physical Decommissioning of Caltech Submillimeter Observatory from Maunakea Comes to a Close Hilo, Hawai‘i – July 2, 2024 – The physical decommissioning of the Caltech Submillimeter Observatory (CSO) from Maunakea on Hawai’i Island is complete. Last fall, the telescope was removed and this spring and summer all buildings on the site were removed, the foundation demolished, and active restoration of the site was undertaken in accordance with approved plans and permits. text/html 2024-06-28T13:58:01+00:00 http://cso.caltech.edu/wiki/cso/outreach/decomm_contractors?rev=1719583081&do=diff Decommissioning Consultants and Contractors This is a partial list of consultants, contractors, and subcontractors decommissioning the Caltech Submmillimeter Observatory on behalf of Caltech. * M3 Engineering & Technology; Tucson Lead consultant for planning phase * Goodfellow Brothers, Inc.; Waikoloa text/html 2024-07-02T17:55:45+00:00 http://cso.caltech.edu/wiki/cso/outreach/facility_deconstruction?rev=1719942945&do=diff 2023 September – 2024 July: Facility Deconstruction and Removal The CSO dome and other buildings have been deconstructed and removed from Maunakea. Removal of foundations and underground structures is complete. Active site restoration is complete. These are some notable steps in the process. text/html 2025-05-21T12:33:31+00:00 http://cso.caltech.edu/wiki/cso/outreach/outreach?rev=1747830811&do=diff Public Information Although most of the information on this wiki is aimed at professional observers, the following material may interest a broader audience. Decommissioning information Caltech has decommissioned the CSO and restored the site. The telescope ceased scientific operations in late 2015, after which all astronomical instruments were removed from the facility. Decommissioning of the CSO was carried out according to the Conservation District Use Permit (CDUP) issued by the State of… text/html 2013-09-07T02:50:20+00:00 http://cso.caltech.edu/wiki/cso/outreach/seminar?rev=1378522220&do=diff CSO Science Seminars CSO science seminars are held occasionally in the conference room at the CSO office in Hilo. Please join us! 2012 2012-02-27 CCAT Dr. Steve Padin (Caltech) Monday, 2012 June 27 at 4:00 pm CCAT will be a 25 m diameter telescope equipped with cameras and spectrometers operating in the 0.2-2 mm wavelength range. CCAT will be large enough to resolve essentially all the submillimeter background at 350 µm, and its small beam will yield source positions with arcsecond accu… text/html 2023-12-22T03:58:08+00:00 http://cso.caltech.edu/wiki/cso/outreach/telescope_disassembly?rev=1703217488&do=diff 2023 June – December: Telescope Disassembly and Removal The Leighton Telescope has been disassembled and removed from Maunakea. It was transported to the Kawaihae Harbor and will be shipped to Chile for reuse. These are some notable steps in the process.