EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp01530  13/05/78  04:56:31   9899.49   76   36
swp04817  31/03/79  05:19:00  23399.50  127   78
swp07835  01/02/80  07:22:30  23099.67  165   77
swp07873  05/02/80  10:13:34  12899.81   98   40
swp08581  28/03/80  04:04:28  16199.55  118   51
swp09276  13/06/80  22:53:20   8999.60   74   30
swp09986  02/09/80  00:50:52  25199.69  154   66
swp11192  30/01/81  12:50:50  10559.77   94   34
swp11200  31/01/81  08:42:54  10799.79   89   35
swp17475  24/07/82  05:04:48  24299.80  112   65
swp17718  18/08/82  07:07:39  10199.19   51   31
swp21029  12/09/83  14:58:35  22679.83  153   67
swp23810  29/08/84  02:15:11  22319.79  172  107
swp24577  28/11/84  14:20:27  16019.74  110   45
swp25535  28/03/85  11:21:08  25199.69  173   67
swp25786  27/04/85  02:39:03  11999.51  115   40
swp26076  03/06/85  01:59:43  10079.72   96   39
swp26593  11/08/85  18:04:34  11099.62  104   40
swp27010  02/11/85  17:03:05   6239.72   94   26
swp28691  16/07/86  20:13:45  23639.52  190   74
swp29115  01/09/86  22:57:51  17819.52  185   65
swp34750  16/11/88  11:57:29  24599.63  177   62
swp35799  17/03/89  07:50:33  10799.79  110   35
swp39709  25/09/90  16:27:27  22799.84  154   47
swp42567  26/09/91  16:11:42  23699.73  163   58