EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp01673  30/05/78  22:50:00   3599.84  171   26
swp03807  05/01/79  03:54:00   2999.78  154   22
swp07503  30/12/79  05:50:01   3599.84  171   26
swp19545  26/03/83  03:30:17   7199.82  255   31
swp19546  26/03/83  06:38:20   3599.84  176   24
swp30460  08/03/87  04:05:19   3681.76  173   25
swp30461  08/03/87  06:38:34   3681.76  165   24
swp33088  13/03/88  21:01:02   3599.84  175   48
swp33089  13/03/88  22:53:54   2699.54  165   74
swp41083  11/03/91  06:14:20   2399.72  124   19