Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-A
TLE Epoch: 2021 6 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/01/2021   04:47:10   (   0.06,-128.41) (  -0.15,-129.22)   92.95                80
 06/02/2021   04:23:50   (   0.05,-128.41) (   0.97,-124.24)  474.77                80
 06/03/2021   16:42:42   (  -0.06,-128.49) (   0.00,-128.86)   40.99                80
 06/06/2021   04:43:42   (   0.06,-128.45) (   0.05,-128.51)    6.64                80
 06/08/2021   16:41:54   (  -0.07,-128.52) (  -0.14,-128.14)   43.40                80
 06/10/2021   05:00:54   (   0.07,-128.47) (  -0.87,-132.78)  490.21                80
 06/11/2021   04:37:34   (   0.07,-128.47) (   0.19,-127.79)   76.36                80
 06/12/2021   16:56:26   (  -0.08,-128.51) (   0.78,-132.41)  443.37                80
 06/13/2021   16:38:27   (  -0.08,-128.51) (  -0.34,-127.43)  123.48                80