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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, and the new ALMA Prototype 12-meter Telescope (12m) located on Kitt Peak, Arizona, for the period February 15, 2017 - June 15, 2017.

The new 12m antenna supports an ALMA Band 3 (84-116 GHz) dual-polarization SBS (sideband-separating) receiver.  The SMT currently supports a dual-polarization ALMA Band 6 (211-275 GHz) receiver with SBS mixers, a dual-polarization Band 7 (320-370 GHz) receiver, and a Band 9 (620-720 GHz) dual-polarization receiver with ALMA Band 9 mixers.  The 12m control system supports dual-polarization, position-switched or beam-switched observations within a single sideband.  The SMT control system supports both dual-polarization ("2 IF mode") and dual-polarization, dual-sideband observations ("4 IF mode"), as well as OTF mapping. Proposal candidates should consult the ARO website for technical specifications:

Proposal candidates should download the updated Proposal Summary Sheet form here:

ARO Proposal Summary Sheet (PDF fillable format)

Proposal candidates are required to list on the Proposal Summary Sheet their requested observing blocks (LST ranges), dates on which they are not available to observe, and dates in which sources in those observing blocks are within the Sun-avoidance zone (44 degrees at the SMT, 10 degrees at the 12m).

Proposal candidates are also encouraged to submit up to three pages of scientific and technical justification (including figures, tables, and references) with their Proposal Summary Sheet.

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 Tom Folkers, Operations Manager:

Proposals will be reviewed by the ARO TAC. 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. Graduate student participation is especially encouraged regardless of institutional affiliation. Institutions (or individuals) that wish to acquire longer commitments of time should contact Jeff Kingsley, Interim Director:

Next deadline for proposals is 23:59 MST on January 11, 2017.

Proposals should be emailed in PDF format to: