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Deadlines

Proposals for Time on Optical/IR Telescopes

The deadline for 2018B proposals is noon MST (Arizona) on Monday, April  2, 2018. Generally, deadlines are Oct. 1 and Apr. 1 for the following term's observations, unless these days fall on weekends.

For more important details and information, please refer to THIS Web page and the 2018B Call for Proposals.

Proposals for Time on ARO Telescopes

Deadline for ARO proposals may be found in the Call for Proposals.