Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 7 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)
 07/22/2021   06:45:24   (  -0.01,-137.19) (  -0.42,-138.95)  201.02                80
 07/23/2021   06:27:25   (  -0.01,-137.19) (   0.74,-133.97)  367.50                80
 07/24/2021   18:43:38   (   0.01,-137.19) (   0.29,-138.53)  152.49                80
 07/25/2021   18:25:38   (  -0.00,-137.18) (  -0.80,-133.53)  415.66                80
 07/27/2021   06:41:58   (   0.02,-137.16) (  -0.23,-138.12)  110.69                80
 07/28/2021   06:24:00   (   0.02,-137.15) (   0.92,-133.14)  457.60                80
 07/29/2021   18:40:12   (  -0.02,-137.15) (   0.10,-137.69)   62.60                80
 08/01/2021   06:38:33   (   0.01,-137.11) (  -0.03,-137.29)   21.05                80
 08/03/2021   18:39:26   (   0.01,-137.07) (  -0.04,-136.85)   25.44                80