AIRGLOW DATA for May 1993 Station: Kiso Radiation : 5577A 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 May May 12-13 * 215 185 400 2 200 14-15 145: 165 185 160 655 4 164 15-16 170: 145 130 130 160 735 5 147 16-17 115 145 150 135 140: 685 5 137 20-21 165 185 115 145 190 165 160 1125 7 161 1185 7 169 23-24 120: 120 105 100 190 275: 275: 650 4 163 24-25 * 150: 110: * * 200 190 580 5 116 25-26 * 90 120 160 115 95 685 4 171 26-27 * 165 130 185 205 980 4 245 27-28 205 255 250 270 670 3 223 8350 50 167 28-29 * 200 190 280 Remarks : # Extrapolated or interpolated value from measurements within 10 minutes * Interrupted by accident or cloud : Poor value -- Moon shine