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Observing Proposals

2024B Call for Proposals

The call for proposals for the 2024B semester.

Proposal Application

Submit a proposal for Director’s discretionary time.

Open Access Program

An opportunity for the US astronomy community.

Extended Science Family

Former LCO grad students and posdocs, as well as LCO committee members, are eligible to submit proposals.

Science Collaboration Institutions

Institutions with guaranteed observing time on LCO or who are eligible to apply for LCO's share.