Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 10 6.  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)
 10/07/2021   06:52:21   (   0.05,-137.24) (  -0.71,-140.58)  380.32                80
 10/08/2021   06:34:22   (   0.05,-137.25) (   0.41,-135.58)  190.19                80
 10/09/2021   18:50:33   (  -0.05,-137.27) (   0.60,-140.14)  327.51                80
 10/10/2021   18:32:34   (  -0.04,-137.28) (  -0.52,-135.15)  242.40                80
 10/12/2021   06:48:54   (   0.04,-137.28) (  -0.50,-139.74)  281.00                80
 10/13/2021   06:30:54   (   0.04,-137.28) (   0.62,-134.75)  288.51                80
 10/14/2021   18:47:06   (  -0.03,-137.28) (   0.39,-139.31)  230.44                80
 10/15/2021   18:29:05   (  -0.03,-137.28) (  -0.67,-134.30)  338.94                80
 10/17/2021   06:45:26   (   0.03,-137.28) (  -0.34,-138.90)  184.89                80
 10/18/2021   06:27:26   (   0.03,-137.28) (   0.78,-133.91)  384.39                80
 10/19/2021   18:46:17   (  -0.03,-137.28) (   0.23,-138.47)  134.93                80