Palomar Observatory

Keck Observatory

Caltech Optical Observatories

Caltech Astronomy

California Institute of Technology

COO Telescope Time Solicitations

Here you'll find material on proposing for Keck and Palomar observing time through COO

Current Solicitation: Semester 2020A

2020A Proposals Due on 30 September 2019; announcement of results expected on or around 01 December 2019


Closed Solicitations (provided here for reference):

2019B  2019A  2018B  2018A  2017B 


2019 SURF Observing Program

Every summer we provide opportunities for Caltech SURF students in astronomy and related fields to experience observing at the Palomar 200-inch Hale telescope. See the SURF Observing Page for information on the 2019 SURF Observing Program. Please note SURF proposal deadline is 13 July 2019.


Proposal Eligibility

COO Proposal Eligibility (information on COO proposal eligibility for Caltech Palomar & Keck time)

P200 Large Projects

P200 Large Project Policy

Merging PDF Files

Merging PDF Files

COO Solicitations Index Page / v 26June2019
Last updated: 16 August 2019 AFB/RJB