AIRGLOW DATA

                            for May 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
May                                                                                            May
5- 6                      70    55    60    40                                                 225     4    56
6- 7                       *   50:   35:     *                                                  85     2    43
7- 8                       *     *     *    35    40                                            75     2    38
10-11                      *    60    30    25    25    20    25                               185     6    31
13-14                      *    60   30:   25:     *    30    35     *                         180     5    36
                                                                                                50     2    25
14-15                      *     *     *   25:   25:     *     *     *                         135     4    33
17-18                                       40    35    30    30     *                         150     4    38
18-19                                       35    35    40    40     *                         110     3    37
19-20                                            30:    40    40     *                          65     2    33
20-21                                                   35    30     *                        1260    34    37

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