# TimeAzEl


Time-tagged azimuth elevation pointing data.

Specifies the antenna pointing direction at a specific time offset from the segment's reference epoch.

## Contents


 ** az **   <a name="groundstation-Type-TimeAzEl-az"></a>
Azimuth angle at the specified time.  
Valid ranges by unit:  
+  `DEGREE_ANGLE`: -180 to 360 degrees, measured clockwise from true north
+  `RADIAN`: -π to 2π radians, measured clockwise from true north
Type: Double  
Required: Yes

 ** dt **   <a name="groundstation-Type-TimeAzEl-dt"></a>
Time offset in atomic seconds from the segment's reference epoch.  
All `dt` values within a segment must be in ascending order with no duplicates.  
 `dt` values may be:  
+ negative
+ expressed as fractions of a second
+ expressed in scientific notation
Type: Double  
Required: Yes

 ** el **   <a name="groundstation-Type-TimeAzEl-el"></a>
Elevation angle at the specified time.  
Valid ranges by unit:  
+  `DEGREE_ANGLE`: -90 to 90 degrees, where 0 is the horizon, 90 is zenith, and negative values are below the horizon 
+  `RADIAN`: -π/2 to π/2 radians, where 0 is the horizon, π/2 is zenith, and negative values are below the horizon 
Type: Double  
Required: Yes

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/groundstation-2019-05-23/TimeAzEl) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/groundstation-2019-05-23/TimeAzEl) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/groundstation-2019-05-23/TimeAzEl)