EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp09305  18/06/80  13:57:57    119.47  126   29
swp22939  08/05/84  00:09:29    125.62  119   18
swp25627  08/04/85  02:29:19    149.78  129   18
swp25629  08/04/85  08:33:48    179.68  152   17
swp31505  07/08/87  21:21:34    479.51  255   18
swp31506  07/08/87  22:36:19    149.78  130   17
swp33426  02/05/88  04:17:17    149.78  130   16
swp34066  10/08/88  00:32:48    164.53  139   15
swp34475  14/10/88  20:40:58    154.70  126   15
swp37677  24/11/89  18:00:06    154.70  151   16
swp44829  02/06/92  01:16:09    154.70  129   15
swp44966  21/06/92  01:20:35    154.70  126   15
swp50730  10/05/94  02:06:39    154.70  125   15