Image Service: ROSAT High Resolution Image Pointed Observations Mosaic: Intensity
Description
This survey was generated from all available ROSAT HRI observations. Data were mosaicked into 1.1 degree tiles by SkyView. Exposure maps were generated for each HRI observation using the hriexpmap FTOOL. For each tile, all observations that might contribute to that tile were located and added to count and exposure map tiles. Exposures for each observation were calculated using a nearest neighbor interpolation of the center of the tile pixels to the exposure map pixels. Counts were computed by projecting the RA and Decs of each eligible photon into the appropriate tile pixel. Only photons with a PHA > 3 were included in the mosaic and within each observation only counts within the region where the exposure was greater than half the maximum exposure were included. Provenance: Data from GSFC and MPE. <i>SkyView</i> mosaic generated by SkyView.. This is a service of NASA HEASARC.
This section describes who is responsible for this resource
Publisher: NASA/GSFC HEASARCivo://nasa.heasarc/ASD[Pub. ID]
Contact Information:
This section provides some status information: the resource version, availability, and relevant dates.
This resource was registered on: 2024 Jul 05 00:00:00ZThis resource description was last updated on: 2024 Jul 05 00:00:00Z
This section describes what the resource is, what it contains, and how it might be relevant.
Related Resources:
This section describes the data's coverage over the sky, frequency, and time.
Reference Coordinate System: UTC-ICRS-TOPOXXivo://STClib/CoordSys#UTC-ICRS-TOPO[Res. ID]
Sky Coverage: Regions covered:
Wavebands covered:
This is a standard IVOA service used to search for images from this resource that overlap with a specified region of the sky.
This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.
Developed with the support of the National Science Foundation under Cooperative Agreement AST0122449 with the Johns Hopkins University The NAVO project is a member of the International Virtual Observatory Alliance
This NAVO Application is hosted by the Space Telescope Science Institute