3. Overview of proposal preparation, validation, submission and selection

PIs of proposals  will have to submit proposals to ISRO by the deadline given in the ISSDC website using AstroSat Proposal Processing System (APPS) software. APPS is available online through http://www.issdc.gov.in.  APPS is not downloadable and cannot be used off-line. An APPS proposer’s guide is available in ISSDC and ASC websites which elaborates on the proposal submission procedure.   A summary is provided in this section.

3.1   Proposal preparation pre-requisites

Depending on the scientific requirement, proposals to AstroSat can be submitted for observation with a single or more instruments. Proposals are to be made as per APPS proposer’s guide and this procedures document.  Proposers can refer to redbook for the list of observed targets.

AstroSat proposals will require the following information at the minimum. 

  • Source coordinates,  source angular size if extended, V magnitude, 2-10 keV flux, estimated count rates for different instruments, exposure times, UVIT bright source list, Astroviewer output  for  feasibility of observations  of  the  target  in pdf format. (use AstroSat tools listed in section 3.3)
  • Instrument configuration parameters such as instrument mode, filter, etc. (Ref. Handbook)
  • Scientific and technical justification.

3.2  APPS Instructions

Instructions to fill various entries within APPS to prepare proposals are available online.  APPS proposer’s guide can also be referred for this purpose.   Queries on APPS can be mailed to [email protected]for proposal preparation and submission.  Queries will be answered on best effort basis.

3.3   Proposal Preparation Tools

Proposers can use the following tools in order to prepare an AstroSat proposal.