Most "fields" in the query form consist of three parts: a label,
a check box, and a text box or selection box. First, enter any parameters
in the appropriate text boxes or select desired options in the selection
boxes. The more entries you make, the more restrictive is your search
of the database. Make sure you do NOT select both an object and
a coordinate - choose one or the other.
To include a field in the resulting tabular output from the submitted
query, click on the check box beside that field. Several of these
are selected by default. "Deselect" the check box if you do not
want these items listed in the output.
After submitting your query, a table of returned records is produced
(assuming the search was successful). If a preview is available,
you can preview observations by click on the "P" in the "Pre" column.
If a preview is not available "N/A" is displayed.
To retrieve particular data sets simply click on the "Mark" column
of the desired observation(s) and click the "Request Marked Datasets"
button. You can select every observation in the table by clicking
the "MarkAll" button.
Click on a query parameter label for a description of each parameter.
Dates can be specified in several formats. Examples include
"MM/DD/YY" or "Day Month Year". If a range is desired, two dates
can be separated by two single dots (..). For example, to select
all exposures that started between the 1st of January and the 5th
of February 2002 you could enter :
In most catalogues, it is not feasible to search directly by
target names since there is no standard for naming astronomical
targets. We strongly suggest that users use the SIMBAD/NED resolver
instead. Then any known astronomical name can be used with
the name resolver providing the coordinates.
To specify the size of the search box around these coordinates
a box size (DD MM SS) must be specified. The default box size
is 10 arc minutes.