ATNF HI Survey Gateway This page is used as a gateway to the various ATNF HI surveys. By inputting a position in either galactic or equatorial coordinates, a list of data cubes containing the specified position will be listed. To go directly to a specific survey server follow the links below. RA/Longitude Dec/Latitude Coordinate System J2000 ra/dec gl/gb B1950 ra/dec HI Survey Gateway Server | MC Data Server | SGPS Data Server | HIPASS Spectral Server | HIPASS Data Cube Server