Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 30.  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)
 06/30/2021   18:40:04   (   0.02,-137.19) (   0.14,-137.69)   57.51                80
 07/03/2021   06:38:25   (  -0.02,-137.18) (  -0.05,-137.30)   13.89                80
 07/05/2021   18:39:19   (   0.02,-137.17) (  -0.08,-136.87)   34.55                80
 07/07/2021   06:55:39   (  -0.02,-137.14) (  -0.97,-141.46)  491.73                80
 07/08/2021   06:37:40   (  -0.02,-137.13) (   0.12,-136.46)   75.96                80
 07/09/2021   18:53:52   (   0.02,-137.11) (   0.91,-141.02)  445.71                80
 07/10/2021   18:35:54   (   0.01,-137.09) (  -0.24,-136.03)  121.46                80
 07/12/2021   06:54:54   (  -0.01,-137.06) (  -0.79,-140.62)  406.06                80
 07/13/2021   06:31:35   (  -0.01,-137.04) (   0.30,-135.62)  160.77                80