Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 1 11.  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)
 01/12/2021   18:36:29   (  -0.01,-137.25) (  -0.12,-136.89)   41.76                80
 01/14/2021   06:58:10   (   0.01,-137.24) (  -0.93,-141.48)  483.38                80
 01/15/2021   06:34:50   (  -0.01,-137.24) (   0.15,-136.48)   85.81                80
 01/16/2021   18:56:23   (   0.02,-137.25) (   0.85,-141.05)  432.70                80
 01/17/2021   18:33:03   (   0.02,-137.25) (  -0.22,-136.05)  136.13                80
 01/19/2021   06:54:46   (  -0.02,-137.24) (  -0.77,-140.66)  389.46                80
 01/20/2021   06:31:26   (  -0.02,-137.23) (   0.31,-135.66)  179.04                80
 01/21/2021   18:52:58   (   0.02,-137.23) (   0.69,-140.22)  340.66                80
 01/22/2021   18:29:40   (   0.01,-137.23) (  -0.45,-135.23)  227.40                80
 01/24/2021   06:48:41   (   0.01,-137.20) (  -0.60,-139.83)  300.01                80