+ double acceleration() { return series.value(AltosFlightSeries.accel_name, indices); }
+ double pressure() { return series.value(AltosFlightSeries.pressure_name, indices); }
+ double altitude() { return series.value(AltosFlightSeries.altitude_name, indices); }
+ double height() { return series.value(AltosFlightSeries.height_name, indices); }
+ double speed() { return series.value(AltosFlightSeries.speed_name, indices); }
+ double temperature() { return series.value(AltosFlightSeries.temperature_name, indices); }
+ double apogee_voltage() { return series.value(AltosFlightSeries.apogee_voltage_name, indices); }
+ double main_voltage() { return series.value(AltosFlightSeries.main_voltage_name, indices); }
+
+ void write_basic() {