Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2019 9 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)
 09/22/2019   18:27:51   (   0.02,-137.21) (  -0.61,-134.34)  326.73                80
 09/24/2019   06:46:52   (  -0.02,-137.20) (  -0.41,-138.94)  198.72                80
 09/25/2019   06:23:32   (  -0.01,-137.19) (   0.71,-133.95)  369.47                80
 09/26/2019   18:45:04   (  -0.00,-137.18) (   0.29,-138.51)  150.97                80
 09/27/2019   18:21:44   (  -0.01,-137.18) (  -0.83,-133.52)  417.13                80
 09/29/2019   06:43:24   (   0.01,-137.15) (  -0.19,-138.11)  109.09                80
 09/30/2019   06:20:05   (   0.01,-137.14) (   0.94,-133.12)  458.81                80
 10/01/2019   18:38:55   (  -0.02,-137.13) (   0.13,-137.67)   62.37                80
 10/04/2019   06:37:16   (   0.02,-137.08) (  -0.01,-137.28)   21.93                80