Observing at NOIRLab
Deadlines for submission:
[A] semester (Feb 1 – Jul 31): Last day of September of the previous year
[B] semester (Aug 1 – Jan 31): Last day of March of the current year
Director's Discretionary Time
Cerro Tololo (proposals accepted at any time)
Gemini (proposals accepted at any time)
Other types of proposals
Gemini Fast Turnaround Program (deadline for proposal submission on last day of each month)
Gemini Poor Weather Programs (proposals accepted at any time)
Gemini Large and Long Programs (check website for current status)
NOIRLab Survey Programs (check website for current status)
NOIRLab provides access to time on a large range of facilities, including its own telescopes at KPNO and CTIO, partnership telescopes such as WIYN, SOAR, and Gemini, and private telescopes through institutional arrangements. Proposals are solicited twice per year, with proposals due on the last day in March (for semester Aug 1 – Jan 31) and September (for semester Feb 1 – July 31). For NOIRLab and partnership telescopes, NOIRLab staff support all aspects of the interface with proposers and observers, including assistance with proposals, support at the telescope, and support for data reduction. For private telescopes, NOIRLab staff support the proposal process and facilitate a smooth handoff to observatory personnel.
This page lists the facilities for which the current call for proposals applies, as well as the approximate nights available for new programs. The call for proposals is typically made approximately one month before the deadline. Previous to that, the facilities listed are those from the previous call.
This page provides an overview of all the capabilities available in the current (or previous) call for proposals.
Proposals for standard observing programs at all NOIRLab facilities, at partner facilities, and at private facilities that provide some open-access time through the NOIRLab time allocation process, can be submitted twice each year. Survey programs are accepted annually, and investigators must submit a letter of intent to propose in advance.
After receiving time through the NOIRLab time allocation process, you should check here on what preparations should be made for your observing run. In cases where the observations will be obtained for you, you must provide sufficient information to allow the observer to do this successfully. Click on the links below for site-specific information:
The Astronomical Event Observatory Network (AEON) is a facility ecosystem for accessible and efficient follow-up of astronomical transients and Time Domain science.
A comprehensive list of filters available to NOIRLab users, labeled by telescope and instrument. In addition, plots and data are available for download for most filters.
Schedules for current and upcoming (when available) semesters for all telescopes with time allocated through NOIRLab can be found here.
Complete list of approved survey programs by NOAO/NOIRLab since 1999, with data available through the Astro Data Archive service.
Weather information for our four summits, including links to seeing monitors and all-sky cameras.