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ARO Proposal Submission Information


The Arizona Radio Observatory (ARO) solicits observing proposals for the 10-meter Submillimeter Telescope (SMT) located on Mount Graham, Arizona, for the period October 15, 2020 – February 15, 2021. No new proposals for the ALMA Prototype 12-meter Telescope (12m) located on Kitt Peak, Arizona, will be accepted for this current call as proposals from the 2020A call for proposals will be carried over to the 2020B proposal period. Proposal candidates should submit up to three pages of scientific and technical justification (including figures, tables, and references) in addition to their Proposal Summary Sheet (form here):

ARO Proposal Summary Sheet (PDF fillable format)

All proposal candidates are required to list on the Proposal Summary Sheet their requested observing blocks (the exact LST ranges to be scheduled and number of times to be repeated), dates on which they are not available to observe, and dates in which sources in those observing blocks are within the Sun-avoidance zone (45 degrees at the SMT, 10 degrees at the 12m). 

The 10m SMT currently supports dual-polarization sideband-separating (SBS) observations at 1mm (211 – 280 GHz) and dual-polarization double sideband observations at 0.8mm (325 – 370 GHz). The SMT control system supports both dual-polarization ("2 IF mode") and dual-polarization + dual-sideband observations ("4 IF mode") with tunable IF from 4.5-7.5 GHz, for position-switched, beam-switched, and OTF observations. Proposal candidates should consult the ARO Equipment Summary and Status sheet for additional technical specifications:

Remote observing is available. Observers who plan to observe remotely must supply fixed IP address(es) of the computer(s) that will be used during observing on their Proposal Summary Sheet. For further information about remote observing and other operational questions, please contact Natalie Gandilo, ARO Software Engineer:

Proposals will be reviewed by the ARO TAC and scheduling of successful proposals will be done according to availability of the receivers requested.  The telescopes are expected to be available to the general astronomical community for a minimum of 10 percent of the scheduled time. Institutions (or individuals) outside the State of Arizona that wish to acquire longer commitments of time through a limited duration agreement with the University of Arizona should contact Buell Jannuzi, Director:

Next deadline for proposals is 23:59 MST on August 27, 2020.

Proposals should be emailed in PDF format to: