AIRGLOW DATA

                            for December 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
Dec.                                                                                          Dec.
1- 2           *     *     *     *   20:    10     5   10:   10:                                55     5    11
2- 3              190:    65    90    45    35    15     *    10    15     *                   465     8    58
4- 5           *     *     *   65:   10:    10    10    10    10    20    45    80             260     9    29
5- 6           *  150:  110:    65    30    20     *     *     *     *     *     *             375     5    75
6- 7           *     *     *     *     *   25:    15    15    15    20    55    85             230     7    33
                                                                                               530    10    53
7- 8           *  185:  100:   70:    40    20     *    15    15    20    10   55:             220     9    24
9-10                       *   55:   20:    15    25    10    15    15    10    55             130     7    19
12-13                                  *   20:    15    10    10    10    15    50             180     7    26
13-14                                       20    15    10    10    45    30    50            2445    67    36

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