Disclaimer

Please note that the forms provided here and neither complete (not all parameters are illustrated) nor convenient (the return data is meant to be parsed and utilized by programs like Oasis).

Programmers wishing additional information on interfacing to these services should contact us at:

oasis@ipac.caltech.edu

 

MIME Types and Error Structures

For IRSA services that return images, the MIME type is image/x-fits. For the catalog holdings and data dictionary, it is text/xml. For the services that return tables (Catalog Search and NED), it is text/plain.

Except for the XML services, errors are returned with a MIME type of text/plain where the first line of text is the word ERROR. For the XML services, the error is text inside an <ERROR> XML tag.
On-line Archive
Science Information
Services
Oasis provides access to data from many sources. Client GIS functionality allows fusion multiple datasets simultaneously. A general mechanism allows easy extension with other third-party data.

IRSA Data Services

IRSA Catalog Holdings List IRSA manages a small but important set of astronomical catalogs, specifically those from NASA infrared missions (e.g. IRAS, 2MASS) plus a few external catalogs used by IPAC missions (e.g. USNOA-2). This service returns an XML structure containing the current IRSA holdings and is used by Oasis to construct a catalog selection list for the catalog query functionality.
IRSA Catalog Data Dictionary Given the data dictionary information for a specific catalog from the above holdings list, this service will return XML defining its structure. This structure is used by Oasis in constructing the query form for a specific catalog.
IRSA Catalog Search Service This service takes catalog request input (as is constructed using the above query form) and returns an ASCII table containing the rows and columns requested.
ISSA Image Service This service returns a cropped subset of an IRSA ISSA image for a specific IRAS band (gzipped).
IRAS Galaxy Atlas Image Service This service returns a cropped subset of an IRSA Galaxy Atlas image for a specific IRAS band (gzipped).
2MASS Image Metadata (footprints) This service returns an ASCII table containing FITS header information (metadata) for the 2MASS images in the region requested.
2MASS Quick-Look Image Service This service returns a cropped subset of a 2MASS lossy-compressed then uncompressed image for a specific 2MASS band (gzipped).
MSX Image Service This service returns a cropped subset of the MSX image for a specific 2MASS band (gzipped).
NED Basic Source Data This service searches NED and such a form and returns an ASCII table of basic source data for the region requested.