EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp04180  06/02/79  23:40:00    119.47  255   24
swp04181  07/02/79  01:07:00     19.53  186   17
swp20042  21/05/83  06:23:02     17.48  166   16
swp23234  11/06/84  01:01:08     17.48  176   16
swp27267  14/12/85  11:54:19     17.48  156   16
swp29418  10/10/86  20:37:21     14.62  151   17
swp31493  05/08/87  16:20:23     14.62  127   17
swp31510  08/08/87  10:20:54     24.86  173   17
swp33564  18/05/88  17:44:41     14.62  117   16
swp34114  20/08/88  19:33:08     14.62  106   14
swp37196  27/09/89  19:58:32     17.48  129   16