AIRGLOW DATA

                            for April 1992

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
1992                                                                                          1992
Apr.                                                                                          Apr.
2- 3                    130:   115    70    50    40    45    70    30     *                   550     8    69
3- 4                       *     *     *   15:   20:   35:   140    45     *                   255     5    51
5- 6                             *     *   25:    20    30    50    55    85                   265     6    44
6- 7                                   *     *     *    30    60    60    55                   205     4    51
8- 9                                               *     *   55:    55    40                   150     3    50
                                                                                               180     3    60
22-23                      *   85:   45:    50                                                 305     5    61
23-24                    175    50    30    25   25:                                           185     4    46
25-26                      *     *   55:    45    40    45                                     355     6    59
26-27                    130    95   40:    25    30    35                                     405     7    58
27-28                   145:   90:    40   30:   30:    25    45                                55     2    28
                                                                                              2910    53    55
28-29                      *     *     *     *    20    35     *

Remarks : # Extrapolated or interpolated value from measurements within 10 minutes
          * Interrupted by accident or cloud  : Poor value  -- Moon shine