ObjObsSAP

Object Observability Simple Access Protocol

Version 1.0 Working Draft

Overview

The Object Observability Simple Access Protocol (ObjObsSAP) is an IVOA standard that allows astronomers to determine when celestial objects will be observable from a facility / telescope.

  • Position targeting with RA / DEC in decimal degrees
  • Filtering by observation time range
  • Filtering by minimum observability time

Try It Out

Use the form below to query the ObjObsSAP service.

The target position's comma-separated Right Ascension and Declination (in decimal degrees).
The time range for the observation in Modified Julian Days (start/end or /end).
The minimum time (in seconds) that the object must be observable.
The observing facility or telescope. (only "Example Observatory" is supported in this demo)
The maximum number of records to return
The desired response format (e.g., "json", "xml", "votable").

Query Parameters

The ObjObsSAP service accepts the following parameters:

Parameter Type Required Description
POS string Required The target position's comma-separated Right Ascension and Declination (in decimal degrees).
TIME string Optional The time range for the observation in Modified Julian Days (start/end or /end).
MIN_OBS integer Optional The minimum time (in seconds) that the object must be observable.
FACILITY string Optional The observing facility or telescope. (only "Example Observatory" is supported in this demo)
MAXREC integer Optional The maximum number of records to return
RESPONSEFORMAT string Optional The desired response format (e.g., "json", "xml", "votable").

API Endpoints

GET POST /api/objobssap/query

Main query endpoint for ObjObsSAP queries.

GET /api/objobssap/availability

Endpoint to check service availability and status.

GET /api/objobssap/capabilities

Endpoint to retrieve service capabilities and metadata.