HELP: click the link for any parameter for more information.

1. COORDINATE SELECTION [bottom frame]
   object name or coordinates (RA, Dec) of the center of the desired field. First NED, then SIMBAD name resolvers are queried.

   Acceptable forms for coordinates (comma is optional):

   1. sexagesimal: hh mm ss, dd mm ss
   2. decimal degrees: deg, deg

   Select other parameters as required. Be sure to select the correct equinox. Then press Submit.

2. MISSION LIST [left frame]
   A list of missions is produced that have observations in your requested region of sky. Click the missions you wish to see.
   1. Plot: Plots the observation footprints on the sky

3. DATA PLOT & ACQUISITION [right frame]
   

   Results are produced here:

   1. A plot of the observation footprints on the sky. Click the map to select only those observations that include the point clicked.
   2. Links to the data at their home data centers.
   3. An observation list.
4. CHANGING YOUR SELECTIONS
   
   To change region size or other parameters, go to Step 1.
   

   To change selected missions, go to Step 2.