Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 4 12.  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)
 04/12/2021   06:34:18   (  -0.04,-137.18) (   0.15,-136.41)   88.78                80
 04/13/2021   18:55:49   (   0.04,-137.18) (   0.91,-140.96)  431.33                80
 04/14/2021   18:32:29   (   0.04,-137.17) (  -0.23,-135.97)  136.66                80
 04/16/2021   06:54:09   (  -0.04,-137.14) (  -0.79,-140.57)  390.34                80
 04/17/2021   06:30:48   (  -0.04,-137.12) (   0.30,-135.56)  177.07                80
 04/18/2021   18:49:39   (   0.03,-137.10) (   0.69,-140.13)  344.60                80
 04/19/2021   18:31:39   (   0.03,-137.08) (  -0.39,-135.13)  222.37                80
 04/21/2021   06:47:58   (  -0.03,-137.04) (  -0.63,-139.72)  306.12                80
 04/22/2021   06:29:58   (  -0.02,-137.01) (   0.46,-134.72)  260.52                80
 04/23/2021   18:46:09   (   0.02,-136.98) (   0.53,-139.29)  262.19                80
 04/24/2021   18:28:09   (   0.02,-136.96) (  -0.56,-134.29)  304.22                80