1. Options: Choose whether to make a query or list the database tables and headings. If making a query, choose: (i) whether to return the results as an HTML table or via an email giving the URL of the results file; and (ii) in the latter case, whether to return a compressed text (gzipped ASCII) file with the chosen parameters for the objects selected by the mSQL query, or a compressed archive (gzipped tarfile) of the FITS files for the objects selected by the query.

Make a Query - return HTML table Make a Query - e-mail URL of compressed text file Make a Query - e-mail URL of compressed FITS archive List tables and headings

2. Search field: Give the position of the field centre and the radius of the field (in degrees) over which to perform the search.

R.A.:     Dec.:     Equinox: B1950 J2000
Radius:  degrees

3. Query: After SELECT, list the parameters you wish returned; after WHERE give the set of conditions that the parameters must satisfy (see the SQL tutorial and the database introduction for examples). Then hit SUBMIT to submit the query.

SELECT
FROM TDFgg
 WHERE