AIRGLOW DATA for February 1992 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 1992 1992 Feb. Feb. 4- 5 * * * 50: 40 55 80 120 140 95 75 655 8 82 5- 6 * * * 55: 90 100 70 85 65 50 45 560 8 70 8- 9 70: 95 100 120 110 100 95 75 765 8 96 9-10 95 95 90 85 75 85 75: 600 7 86 10-11 * * * 90: 85 55 230 3 77 330 3 110 24-25 * * * 110: 105 115: 260 3 87 25-26 * * * * 90: 90 80 355 5 71 26-27 * * * 65: 65 60 80 85 850 7 121 27-28 * 80: 95: 105: 115 145 160 150 4605 52 89 Remarks : # Extrapolated or interpolated value from measurements within 10 minutes * Interrupted by accident or cloud : Poor value -- Moon shine