Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 3 31.  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)
 03/31/2021   18:22:19   (   0.04,-137.22) (  -0.80,-133.49)  425.00                80
 04/02/2021   06:43:58   (  -0.04,-137.19) (  -0.21,-138.09)  101.12                80
 04/03/2021   06:20:37   (  -0.04,-137.19) (   0.87,-133.08)  467.16                80
 04/04/2021   18:42:09   (   0.04,-137.19) (   0.15,-137.65)   52.63                80
 04/07/2021   06:40:28   (  -0.03,-137.14) (  -0.07,-137.24)   11.78                80
 04/09/2021   18:38:39   (   0.03,-137.13) (  -0.06,-136.81)   36.30                80
 04/11/2021   06:57:38   (  -0.03,-137.09) (  -1.01,-141.40)  490.92                80
 04/12/2021   06:34:18   (  -0.03,-137.08) (   0.13,-136.41)   76.74                80
 04/13/2021   18:53:09   (   0.03,-137.07) (   0.87,-140.97)  444.14                80