EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp01378  18/04/78  01:25:00    899.76  121   28
swp07457  22/12/79  12:12:06   1619.84  206   20
swp07525  02/01/80  03:45:20   3358.20  156   24
swp11277  09/02/81  22:53:42   2878.69  161   27
swp19142  30/01/83  13:52:52   1499.82  166   19
swp19143  30/01/83  15:10:35   2219.49  202   21
swp21844  22/12/83  11:19:19   3599.84  255   24
swp21845  22/12/83  13:43:28   2699.54  255   21
swp21846  22/12/83  15:46:25   2099.48  171   20
swp21847  22/12/83  17:19:26   1739.85  186   19
swp21850  23/12/83  03:35:36   1259.80  150   18
swp22712  11/04/84  02:11:41   2099.48  219   20
swp22713  11/04/84  03:51:00   2099.48  211   20
swp22940  08/05/84  02:12:09   2099.48  220   20
swp22941  08/05/84  03:49:38   2099.48  224   22
swp22942  08/05/84  05:22:57   1679.64  185   19
swp22974  10/05/84  09:38:04   2879.77  255   22
swp22975  10/05/84  11:10:18   2879.77  255   22
swp22987  11/05/84  08:03:27   1259.80  152   18
swp31286  03/07/87  16:16:20    899.76  121   17