Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2021 3 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 03/27/2021   18:04:34   (   0.14,-128.41) (   0.27,-128.89)   54.63                80
 03/30/2021   06:05:33   (  -0.14,-128.30) (  -0.19,-128.48)   21.13                80
 04/01/2021   18:03:45   (   0.14,-128.36) (   0.07,-128.05)   34.41                80
 04/04/2021   05:59:24   (  -0.13,-128.23) (  -0.00,-127.65)   65.80                80
 04/05/2021   18:18:15   (   0.12,-128.28) (   1.02,-132.21)  447.93                80
 04/06/2021   18:00:16   (   0.12,-128.27) (  -0.13,-127.22)  119.49                80
 04/08/2021   06:19:14   (  -0.12,-128.15) (  -0.94,-131.80)  416.09                80
 04/09/2021   05:55:54   (  -0.12,-128.13) (   0.20,-126.81)  151.02                80