AIRGLOW DATA

                            for March 1991

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
1991                                                                                          1991
Mar.                                                                                          Mar.
5- 6               230    70  130:     *                                                       430     3   143
6- 7               255   140    80    55    50                                                 580     5   116
9-10               200    70    75   120    95    90    45    45                               740     8    93
12-13                *   130   125    80    45     *     *   50:    45                         475     6    79
13-14                *   270   180   90:     *     *     *     *     *     *                   540     3   180
                                                                                               605     8    76
14-15                *    90  100:  110:     *  105:    70    55    45    30                   440     5    88
16-17                *     *     *    65    80  105:    95   95:     *     *                   770     9    86
17-18                *   125    70    70    90   120   100    75    65    55                  4580    47    97

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