| Description: The JHU registry entry ivo://sdss.jhu/services/SIAPDR4-images contains an accessURL which does not satisfy the SIAP standard since it includes FORMAT keyword. This is a (hopefully) temporary entry in which has this been corrected. The contact details above are for the author of this registry entry. Rest of description follows below, unaltered. The Sloan Digital Sky Survey is a project to survey a 10000 square degree area on the Northern sky over a 5 year period. A dedicated 2.5m telescope is specially designed to take wide field (3 degrees in diameter) images using a 5x6 mosaic of 2048x2048 CCD`s, in five wavelength bands, operating in drift scan mode. The total raw data will exceed 40 TB. A processed subset, of about 1 TB in size, will consist of 1 million spectra, positions and image parameters for over 100 million objects, plus a mini-image centered on each object in every color. The data will be made available to the public after the completion of the survey |
| Not compliant |
| Service URL |
| Input Parameter | Required | Present |
|---|---|---|
| Regular parameters: | ||
| POS | MUST | Yes |
| SIZE | MUST | Yes |
| INTERSECT | MAY | No |
| NAXIS | MAY | No |
| CFRAME | MAY | No |
| EQUINOX | MAY | No |
| CRPIX | MAY | No |
| CRVAL | MAY | No |
| CDELT | MAY | No |
| ROTANG | MAY | No |
| PROJ | MAY | No |
| FORMAT | MUST | Yes |
| Service specific parameters | ||
| BANDPASS | MAY | Yes |
| BANDPASS | MAY | Yes |
| Field UCD | Required | Present | Required datatype |
Actual datatype |
|---|---|---|---|---|
| Regular fields: | ||||
| VOX:Image_Title | MUST | Yes | char | char |
| INST_ID | SHOULD | No | char | |
| VOX:Image_MJDateObs | SHOULD | No | double | |
| POS_EQ_RA_MAIN | MUST | Yes | double | double |
| POS_EQ_DEC_MAIN | MUST | Yes | double | double |
| VOX:Image_Naxes | MUST | Yes | int | int |
| VOX:Image_Naxis | MUST | Yes | int | int |
| VOX:Image_Scale | MUST | Yes | double | double |
| VOX:Image_Format | MUST | Yes | char | char |
| VOX:STC_CoordRefFrame | SHOULD | No | char | |
| VOX:STC_CoordEquinox | MAY | No | double | |
| VOX:WCS_CoordProjection | SHOULD | Yes | char | char |
| VOX:WCS_CoordRefPixel | SHOULD | Yes | double | double |
| VOX:WCS_CoordRefValue | SHOULD | Yes | double | double |
| VOX:WCS_CDMatrix | SHOULD | Yes | double | double |
| VOX:BandPass_ID | SHOULD | No | char | |
| VOX:BandPass_Unit | SHOULD | No | char | |
| VOX:BandPass_RefValue | SHOULD | No | double | |
| VOX:BandPass_HiLimit | SHOULD | No | double | |
| VOX:BandPass_LoLimit | SHOULD | No | double | |
| VOX:Image_PixFlags | SHOULD | No | char | |
| VOX:Image_AccessReference | MUST | Yes | char | char |
| Service specific fields: | ||||
| VOX:Image_Pix_Width | MAY | YES | int | |
| VOX:Image_Pix_Height | MAY | YES | int | |
| VOX:Image_Size | MAY | YES | double | |
| VOX:Image_Equinox | MAY | YES | double | |