EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp02072  21/07/78  20:47:16    209.59  255   24
swp22175  01/02/84  02:19:56     51.48  204   16
swp22176  01/02/84  02:54:26     45.74  195   18
swp22395  03/03/84  02:12:54     45.74  186   19
swp29921  20/12/86  05:54:13     45.74  186   17
swp30069  11/01/87  04:15:50     45.74  193   16
swp30597  24/03/87  02:43:37     45.74  177   16
swp31073  31/05/87  20:55:31     45.74  178   16
swp33237  08/04/88  21:38:14     45.74  175   18
swp37969  08/01/90  03:21:50     45.74  171   16
swp38396  20/03/90  16:36:10    137.24  191   17
swp38611  15/04/90  22:03:43     45.74  182   17
swp38746  08/05/90  20:04:13     45.74  185   16
swp38842  20/05/90  21:50:06     45.74  172   16
swp43178  22/11/91  01:09:27     44.52  169   15
swp46858  31/01/93  01:08:00     51.48  179   15