public void setExpirationTime(java.util.Date expirationTime) {
        this.expirationTime = expirationTime;
    }
<p>
An overall expiration time for the ephemeris in UTC, after which it will become <code>EXPIRED</code>.
</p>

@param expirationTime
       An overall expiration time for the ephemeris in UTC, after which it will become <code>EXPIRED</code>.
aws-java-sdk-groundstation/src/main/java/com/amazonaws/services/groundstation/model/CreateEphemerisRequest.java