Ignore low elevation passes

[SatTrackPredict4Java](https://github.com/bng919/agsc/blob/main/src/main/java/sattrack/SatTrackPredict4Java.java) reports any period where the satellite rises above 0 degrees elevation as a pass. In most cases, no signal will be received during passes with maximum elevation less than 10 degrees.

SatTrackPredict4Java should ignore passes with maximum elevation less than 10 degrees.