Changes to Submitted Observatory Proposals

For semester proposals, proposers have the ability to withdraw their proposal directly through the PST without needing to contact the NRAO Science Helpdesk. If this action is taken prior to the proposal deadline, a new proposal can be submitted. Note that the PST currently permits proposal withdrawal only if it’s initiated a minimum of fifteen (15) minutes before the deadline. Beyond this time frame, proposers will need to contact the NRAO Science Helpdesk to withdrawal a proposal. After the proposal deadline, a submitted proposal may be withdrawn but no longer modified. Requests for withdrawal should be made via the NRAO Science Helpdesk. It is at the discretion of the Observatory to permit withdrawal however; if the review process has begun, the proposal will not be withdrawn.