Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2019 5 21.  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)
 05/22/2019   06:30:32   (   0.00,-137.17) (   0.35,-135.65)  174.03                80
 05/23/2019   18:49:24   (   0.00,-137.20) (   0.70,-140.20)  342.57                80
 05/24/2019   18:31:25   (   0.01,-137.20) (  -0.46,-135.22)  226.06                80
 05/26/2019   06:50:26   (  -0.01,-137.15) (  -0.60,-139.81)  302.47                80
 05/27/2019   06:27:06   (  -0.01,-137.14) (   0.49,-134.81)  265.52                80
 05/28/2019   18:45:58   (   0.01,-137.16) (   0.50,-139.38)  252.32                80
 05/29/2019   18:27:59   (   0.01,-137.15) (  -0.60,-134.38)  315.73                80
 05/31/2019   06:46:59   (  -0.01,-137.10) (  -0.45,-138.97)  213.35                80
 06/01/2019   06:23:41   (  -0.01,-137.08) (   0.71,-133.98)  353.85                80
 06/02/2019   18:42:32   (   0.01,-137.08) (   0.35,-138.54)  165.86                80
 06/03/2019   18:24:34   (   0.00,-137.06) (  -0.81,-133.55)  401.06                80