EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp01891  30/06/78  23:56:03     19.53  123   17
swp06065  04/08/79  01:37:57     19.53  115   17
swp08913  04/05/80  06:31:38     17.48  103   15
swp08968  10/05/80  06:31:19     17.48  104   16
swp10342  12/10/80  09:27:17     18.71  118   17
swp40995  03/03/91  22:42:45     17.48   99   16
swp48318  06/08/93  16:03:57    107.75  164   18
swp54060  07/03/95  06:40:07     34.69  153   14
swp54077  09/03/95  10:38:16     34.69  160   15
swp54097  11/03/95  07:17:23     34.69  159   15
swp54141  15/03/95  06:23:16     34.69  160   16
swp54153  16/03/95  06:42:41     34.69  157   15