AIRGLOW DATA for January 1991 Station: Kiso Radiation : 5893A 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 1991 1991 Jan. Jan. 8- 9 * 55 45 35 25 35 195 5 39 10-11 * 65: 65: 50: * 65 80 90: 415 6 69 11-12 * * * * 60 80 105: * * 245 3 82 14-15 * 50 65 60 50 55: * * * * 280 5 56 15-16 70 65 65 60 50: * * 65 85 85 545 8 68 80 3 27 25-26 30: 25 25 95 2 48 26-27 50 45 1855 32 58 19.3188 Remarks : # Extrapolated or interpolated value from measurements within 10 minutes * Interrupted by accident or cloud : Poor value -- Moon shine