Table information for 'rosat.images'


Table Description: Metadata for ROSAT pointed observations and the ROSAT All Sky Survey (RASS) images

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

ROSAT was an orbiting x-ray observatory active in the 1990s. We provide a table of all photons observed during ROSAT's all-sky survey (RASS) as well as images of both survey and pointed observations.

For ROSAT data products, see

For a list of all services and tables belonging to this table's resource, see Information on resource 'ROSAT results'

Citing this table

This table has an associated publication. If you use data from it, it may be appropriate to reference 2000IAUC.7432R...1V (ADS BibTeX entry for the publication) either in addition to or instead of the service reference.

To cite the table as such, we suggest the following BibTeX entry:

  title={{ROSAT} results},
  author={Voges, W. and Aschenbach, B. and Boller, Th. and Brauninger, H. and Briel, U. and Burkert, W. and Dennerl, K. and Englhauser, J. and Gruber, R. and Haberl, F. and Hartner, G. and Hasinger, G. and Pfeffermann, E. and Pietsch, W. and Predehl, P. and Schmitt, J. and Trumper, J. and Zimmermann, U.},
  howpublished={{VO} resource provided by the {GAVO} Data Center}


Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
accref Product key Access key for the data N/A meta.ref.url
owner Owner Owner of the data N/A N/A
embargo Embargo ends Date the data will become/became public a N/A
mime Type MIME type of the file served N/A meta.code.mime
accsize File size Size of the data in bytes byte VOX:Image_FileSize
centerAlpha Ctr. RA Approximate center of image, RA deg pos.eq.ra
centerDelta Ctr. Dec Approximate center of image, Dec deg pos.eq.dec
imageTitle Title Synthetic name of the image N/A meta.title
instId Instrument Identifier of the originating instrument N/A;instr
dateObs Obs. date Epoch at midpoint of observation d time;obs.exposure
nAxes #axes Number of axes in data N/A pos.wcs.naxes
pixelSize Axes Lengths Number of pixels along each of the axes pixel pos.wcs.naxis
pixelScale Scales The pixel scale on each image axis deg/pixel pos.wcs.scale
refFrame Ref. Frame Coordinate system reference frame N/A pos.frame
wcs_equinox Equinox Equinox of the given coordinates yr time.equinox
wcs_projection Proj. FITS WCS projection type N/A pos.wcs.ctype
wcs_refPixel Ref. pixel WCS reference pixel pixel pos.wcs.crpix
wcs_refValues Ref. values World coordinates at WCS reference pixel deg pos.wcs.crval
wcs_cdmatrix CD matrix FITS WCS CDij matrix deg/pixel pos.wcs.cdmatrix
bandpassId Bandpass Freeform name of the bandpass used N/A instr.bandpass
bandpassUnit Bandpass unit Unit of bandpass specifications (always m). N/A N/A
bandpassRefval Band Ref. Characteristic quantity for the bandpass of the image m instr.bandpass;stat.median
bandpassHi Band upper Upper limit of the bandpass (in BandPass_Unit units) m instr.bandpass;stat.max
bandpassLo Band lower Lower limit of the bandpass (in BandPass_Unit units) m instr.bandpass;stat.min
pixflags P. Flags Flags specifying the processing done (C-original; F-resampled; Z-fluxes valid; X-not resampled; V-for display only N/A meta.code
coverage Coverage Field covered by the image deg N/A
seqno ROR seq# ROR sequence number N/A;obs
followup Followup Number of follow-up observation (0=first observation, NULL=mispointing) N/A meta.code;obs
obstype Data type Type of data in the file (associated products available through datalink of by querying through seqno) [Note t] N/A meta.code;meta.file
pubdid PubDID Publisher dataset identifier (this lets you access datalink services and the like) N/A
dlurl Datalink Link to a datalink document for this dataset, this lets you access associate data) N/A meta.ref.url

Columns that are parts of indices are marked like this.


The following services may use the data contained in this table:


VO nerds may sometimes need VOResource XML for this table.


Note t

Codes used here include:

im1 photon image in the broad band (0.1-2.4 keV)
im2 photon image in the hard band (0.4-2.4 keV)
im3 photon image in the soft band (0.1-0.4 keV)
ime image of the average photon energy
bk1 background image in the broad band (0.1-2.4 keV)
bk2 background image in the hard band (0.4-2.4 keV)
bk3 background image in the soft band (0.1-0.4 keV)
mex merged map of exposure times for the broad band (0.1-2.4 keV)