{"id":13504,"date":"2026-03-12T11:37:54","date_gmt":"2026-03-12T21:37:54","guid":{"rendered":"https:\/\/www.eaobservatory.org\/jcmt\/?p=13504"},"modified":"2026-03-12T11:37:54","modified_gmt":"2026-03-12T21:37:54","slug":"2026b-jcmt-regular-call-for-proposals","status":"publish","type":"post","link":"https:\/\/www.eaobservatory.org\/jcmt\/2026\/03\/2026b-jcmt-regular-call-for-proposals\/","title":{"rendered":"2026B JCMT Regular Call for Proposals"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The East Asian Observatory (EAO) is pleased to announce the <\/span><b>regular call for proposals for Semester 26B<\/b><span style=\"font-weight: 400;\"> at the James Clerk Maxwell Telescope (JCMT). Please submit your proposals via the JCMT proposal handling system, Hedwig. For full details and submission instructions, please visit:<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/proposals.eaobservatory.org\/jcmt\/semester\/30\/regular\"><span style=\"font-weight: 400;\">https:\/\/proposals.eaobservatory.org\/jcmt\/semester\/30\/regular<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The deadline for 26B Principal Investigator (PI) Proposals is <\/span><b>April 4, 2026, at 01:00 UTC<\/b><span style=\"font-weight: 400;\">. The Hedwig system permits the submission (and editing) of proposals until this deadline.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The instruments available for the 26B semester are listed below, along with their respective availability:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/alaihi\/\"><span style=\"font-weight: 400;\">\u02bbAla\u02bbihi (86 GHz)<\/span><\/a><span style=\"font-weight: 400;\">, \u02bb<\/span><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/uu-230ghz\/\"><span style=\"font-weight: 400;\">\u016a\u02bb\u016b (230 GHz)<\/span><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/harp\/\"><span style=\"font-weight: 400;\">HARP (345 GHz)<\/span><\/a><span style=\"font-weight: 400;\"> will be available throughout the semester.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/aweoweo-345ghz\/\"><span style=\"font-weight: 400;\">\u02bb\u0100weoweo (345 GHz)<\/span><\/a><span style=\"font-weight: 400;\"> is planned to be available during the first half of the semester.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/kuntur\/\"><span style=\"font-weight: 400;\">Kuntur (690 GHz)<\/span><\/a><span style=\"font-weight: 400;\"> is planned to be available during the second half of the semester.\u00a0<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u02bbAla\u02bbihi, Kuntur, and \u02bb\u0100weoweo are offered in a shared-risk mode. When installed, Kuntur replaces \u02bb\u0100weoweo in the N\u0101makanui receiver. The precise dates of the instrument swap and the resulting availability will be decided based on instrument demand.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Kuntur is a 690 GHz receiver offered to the JCMT community in collaboration with the Large Latin American Millimeter Array (LLAMA). Kuntur is a sideband-separating (2SB), dual-polarization receiver, with an observable sky frequency range of approximately 609 to 715 GHz (default IF 5.5 GHz).\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">\u02bbAla\u02bbihi is a dual-polarization, single-sideband (SSB) receiver, operating in upper sideband (USB) only, with an LO frequency range of 80.0 to 88.5 GHz. This corresponds to a sky frequency of approximately 86.0 to 94.5 GHz, given an IF of 6 GHz. The instrument\u2019s performance for different IF values (e.g., 7 GHz) is under ongoing characterization.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">The respective instrument webpages will be updated with definitive commissioning results for <\/span><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/alaihi\/\"><span style=\"font-weight: 400;\">\u02bbAla\u02bbihi<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/kuntur\/\"><span style=\"font-weight: 400;\">Kuntur<\/span><\/a><span style=\"font-weight: 400;\">, and <\/span><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/namakanui\/aweoweo-345ghz\/\"><span style=\"font-weight: 400;\">\u02bb\u0100weoweo<\/span><\/a><span style=\"font-weight: 400;\"> as they become available. For further information, please visit the JCMT instruments webpage:<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/\"><span style=\"font-weight: 400;\">https:\/\/www.eaobservatory.org\/jcmt\/instrumentation\/heterodyne\/<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">PIs must meet the regional or institutional affiliation requirements for Taiwan, Thailand, the United Kingdom, Max Planck Institutes and German universities, or the 26B semester Expanding Partner Program regions (Brazil and Argentina). Co-I status is not similarly restricted. For details regarding PI eligibility, please see:<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.eaobservatory.org\/jcmt\/proposals\/eao_eligibility\/\"><span style=\"font-weight: 400;\">https:\/\/www.eaobservatory.org\/jcmt\/proposals\/eao_eligibility\/<\/span><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">If this is your first time using Hedwig, you should use the \u2018Log In\u2019 button to generate an account. There is a Hedwig \u2018Help\u2019 facility at the upper right corner of each page, and individual Help tags in many other places.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Please contact us at <\/span><span style=\"font-weight: 400;\">helpdesk@eaobservatory.org<\/span><span style=\"font-weight: 400;\"> if you have any questions.<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The East Asian Observatory (EAO) is pleased to announce the regular call for proposals for Semester 26B at the James Clerk Maxwell Telescope (JCMT). Please submit your proposals via the JCMT proposal handling system, Hedwig. For full details and submission instructions, please visit: &nbsp; https:\/\/proposals.eaobservatory.org\/jcmt\/semester\/30\/regular &nbsp; The deadline for 26B\u2026 <a class=\"continue-reading-link\" href=\"https:\/\/www.eaobservatory.org\/jcmt\/2026\/03\/2026b-jcmt-regular-call-for-proposals\/\">Continue reading<\/a><\/p>\n","protected":false},"author":92,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/posts\/13504"}],"collection":[{"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/users\/92"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/comments?post=13504"}],"version-history":[{"count":1,"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/posts\/13504\/revisions"}],"predecessor-version":[{"id":13505,"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/posts\/13504\/revisions\/13505"}],"wp:attachment":[{"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/media?parent=13504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/categories?post=13504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.eaobservatory.org\/jcmt\/wp-json\/wp\/v2\/tags?post=13504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}