EID       Date      UT       Exposure  Cont  Bkgd
(start)  (sec)     (DN)  (DN)
swp37909  27/12/89  10:19:13  23279.48   86   50
swp38211  18/02/90  04:40:23  22619.62   77   45
swp38379  18/03/90  04:17:40  23399.50   90   54
swp42314  24/08/91  01:45:39  25499.52   87   49
swp42526  21/09/91  00:20:12  23399.50   90   51
swp43571  08/01/92  16:07:38  23999.56   94   56
swp44831  02/06/92  05:46:18  25199.69  113   70
swp44854  04/06/92  05:53:58  24899.86  104   64
swp44995  24/06/92  05:55:24  24899.86  105   62
swp45125  13/07/92  03:50:06  25199.69  107   61
swp45276  04/08/92  01:20:44  24599.50   99   61
swp45455  28/08/92  02:17:03  23399.50   97   59
swp45831  02/10/92  22:03:19  24299.80  172  119
swp46013  19/10/92  22:00:36  24599.63  100   63
swp46291  17/11/92  23:24:27  12299.75   64   36
swp46444  11/12/92  18:03:11  24299.80   98   63