Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 5 10.  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)
 05/10/2021   06:55:09   (  -0.05,-137.19) (  -1.01,-141.43)  483.12                80
 05/11/2021   06:37:11   (  -0.05,-137.19) (   0.10,-136.44)   85.51                80
 05/12/2021   18:53:24   (   0.04,-137.19) (   0.88,-141.01)  434.37                80
 05/13/2021   18:35:26   (   0.04,-137.18) (  -0.23,-136.01)  133.72                80
 05/15/2021   06:51:48   (  -0.03,-137.16) (  -0.78,-140.62)  393.00                80
 05/16/2021   06:33:49   (  -0.03,-137.15) (   0.33,-135.62)  174.56                80
 05/17/2021   18:50:02   (   0.02,-137.14) (   0.70,-140.18)  346.82                80
 05/18/2021   18:32:03   (   0.02,-137.12) (  -0.41,-135.19)  220.39                80
 05/20/2021   06:48:26   (  -0.02,-137.09) (  -0.60,-139.79)  307.40                80
 05/21/2021   06:30:27   (  -0.02,-137.07) (   0.51,-134.80)  259.56                80
 05/22/2021   18:46:39   (   0.01,-137.05) (   0.52,-139.36)  262.73                80
 05/23/2021   18:28:41   (   0.01,-137.03) (  -0.60,-134.37)  303.86                80