Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 3 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 03/25/2021   18:49:07   (   0.04,-137.21) (   0.54,-139.32)  240.38                80
 03/26/2021   18:25:48   (   0.04,-137.22) (  -0.60,-134.33)  329.17                80
 03/28/2021   06:47:27   (  -0.04,-137.21) (  -0.41,-138.92)  194.62                80
 03/29/2021   06:24:07   (  -0.04,-137.21) (   0.67,-133.92)  374.51                80
 03/30/2021   18:42:59   (   0.04,-137.21) (   0.30,-138.49)  145.12                80
 03/31/2021   18:24:58   (   0.04,-137.21) (  -0.78,-133.49)  423.59                80
 04/02/2021   06:43:58   (  -0.04,-137.19) (  -0.22,-138.09)  101.70                80
 04/03/2021   06:20:37   (  -0.04,-137.18) (   0.86,-133.08)  466.34                80
 04/04/2021   18:39:28   (   0.03,-137.17) (   0.16,-137.64)   54.92                80
 04/07/2021   06:40:27   (  -0.03,-137.13) (  -0.08,-137.24)   13.55                80