Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 2 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)
 02/15/2021   18:32:58   (   0.03,-137.23) (  -0.25,-136.03)  135.92                80
 02/17/2021   06:54:38   (  -0.03,-137.21) (  -0.76,-140.63)  389.33                80
 02/18/2021   06:31:18   (  -0.02,-137.20) (   0.31,-135.63)  179.25                80
 02/19/2021   18:52:49   (   0.02,-137.20) (   0.70,-140.19)  340.57                80
 02/20/2021   18:29:30   (   0.02,-137.19) (  -0.43,-135.20)  227.52                80
 02/22/2021   06:51:09   (  -0.02,-137.16) (  -0.63,-139.78)  299.15                80
 02/23/2021   06:30:30   (  -0.02,-137.15) (   0.50,-134.79)  268.39                80
 02/24/2021   18:46:41   (   0.01,-137.13) (   0.52,-139.35)  253.26                80
 02/25/2021   18:28:41   (   0.01,-137.11) (  -0.61,-134.36)  313.95                80
 02/27/2021   06:45:01   (  -0.01,-137.07) (  -0.43,-138.95)  213.85                80
 02/28/2021   06:27:01   (  -0.01,-137.05) (   0.70,-133.96)  353.13                80