Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 15.  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)
 06/15/2021   18:50:17   (   0.03,-137.20) (   0.71,-140.19)  341.01                80
 06/16/2021   18:32:19   (   0.03,-137.20) (  -0.43,-135.20)  228.00                80
 06/18/2021   06:48:40   (  -0.02,-137.20) (  -0.59,-139.80)  296.24                80
 06/19/2021   06:30:40   (  -0.03,-137.19) (   0.50,-134.80)  272.45                80
 06/20/2021   18:46:53   (   0.02,-137.18) (   0.52,-139.36)  248.41                80
 06/21/2021   18:28:54   (   0.03,-137.17) (  -0.62,-134.37)  319.78                80
 06/23/2021   06:45:14   (  -0.02,-137.16) (  -0.44,-138.96)  205.88                80
 06/24/2021   06:27:16   (  -0.02,-137.14) (   0.70,-133.97)  361.64                80
 06/25/2021   18:43:28   (   0.02,-137.12) (   0.32,-138.53)  160.97                80
 06/26/2021   18:25:29   (   0.01,-137.10) (  -0.76,-133.53)  406.23                80
 06/28/2021   06:44:30   (  -0.01,-137.07) (  -0.23,-138.13)  120.23                80