Satellite Field:

Select the satellite for which you wish to perform Look Angle Calculations. The look angle calculations are dependent on the satellite's orbital location (satellite longitude).

Input Field:

Specify how the location of the receive site is specified.
Either a city may be selected from the list of available countries and cities, or the latitude and longitude may be specified directly.

Country Field:

The country for the receive site for which look angle computation is requested.
This is used if the Input Type is specified as "Country/City."
NOTE: Only countries that are visible to the available satellites are included in the country list.

City Field:

The city for the receive site for which look angle computation is requested.
This is used if the Input Type is specified as "Country/City."
NOTE: Only cities that are visible to the available satellites are included in the city list.

Latitude Field:

The latitude at the receive site for which look angle computation is requested.
If the Input Type is specified as "Country/City," the latitude is automatically filled in; if the Input Type is specified as "Latitude/Longitude," this value is directly specified by the user.
Units: Deg N
Range: -90.00 < Latitude < 90.00

Longitude Field:

Specify the longitude at the receive site for which look angle computation is requested.
If the Input Type is specified as "Country/City," the longitude is automatically filled in if the Input Type is specified as "Latitude/Longitude," this value is directly specified by the user.
Units: = Deg E (To specify values in deg W, enter a negative value.)

Ephemeris CheckBox:

Check this box to generate look angle parameters based on the ephemeris data available between the start and end date

Start Date Field:

Specify a start date for the Ephemeris data

End Date Field:

Specify end date for Ephemeris data