public OEMEphemeris withS3Object(S3Object s3Object) {
        setS3Object(s3Object);
        return this;
    }
<p>
Identifies the S3 object to be used as the ephemeris.
</p>

@param s3Object
       Identifies the S3 object to be used as the ephemeris.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-groundstation/src/main/java/com/amazonaws/services/groundstation/model/OEMEphemeris.java