AIRGLOW DATA for April 1993 Station: Kiso Radiation : 6300A Longitude:137ß38'E Latitude: 35ß48'N Absolute Zenith Intensity in Rayleighs J.S.T 18 19 20 21 22 23 0 1 2 3 4 5 6 Date/U.T. 9 10 11 12 13 14 15 16 17 18 19 20 21 Sum Ave 1993 1993 Apr. Apr. 16-17 * 45: 20 10 15 15: * 105 5 21 17-18 140: 65: 30 20 25 15: 20 315 7 45 20-21 * * 25: 30: 20 20 45 50 190 6 32 25-26 40 40 50 30 35 55 250 6 42 27-28 * 30: 40 30 100 3 33 960 27 36 Remarks : # Extrapolated or interpolated value from measurements within 10 minutes * Interrupted by accident or cloud : Poor value -- Moon shine