Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 9.  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)
 06/09/2021   06:37:29   (  -0.04,-137.20) (   0.12,-136.46)   83.65                80
 06/10/2021   18:53:41   (   0.03,-137.20) (   0.89,-141.02)  435.60                80
 06/11/2021   18:35:43   (   0.03,-137.20) (  -0.25,-136.03)  133.52                80
 06/13/2021   06:52:04   (  -0.03,-137.20) (  -0.78,-140.63)  390.73                80
 06/14/2021   06:34:05   (  -0.02,-137.20) (   0.30,-135.63)  177.94                80
 06/15/2021   18:50:17   (   0.02,-137.19) (   0.71,-140.19)  342.62                80
 06/16/2021   18:32:19   (   0.02,-137.18) (  -0.43,-135.20)  225.78                80
 06/18/2021   06:48:40   (  -0.02,-137.17) (  -0.59,-139.80)  299.28                80
 06/19/2021   06:30:40   (  -0.02,-137.16) (   0.50,-134.80)  268.79                80
 06/20/2021   18:46:53   (   0.01,-137.14) (   0.52,-139.36)  252.93                80
 06/21/2021   18:28:54   (   0.01,-137.13) (  -0.62,-134.37)  314.57                80