Simultaneous Nadir Overpasses (SNOs) between GOES-17 and METOP-B
TLE Epoch: 2021 6 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)
 06/10/2021   18:53:41   (   0.04,-137.20) (   0.91,-141.02)  435.47                80
 06/11/2021   18:35:43   (   0.04,-137.20) (  -0.23,-136.03)  133.59                80
 06/13/2021   06:52:04   (  -0.03,-137.20) (  -0.80,-140.63)  390.70                80
 06/14/2021   06:34:05   (  -0.03,-137.19) (   0.34,-135.64)  177.94                80
 06/15/2021   18:50:17   (   0.03,-137.19) (   0.73,-140.19)  342.77                80
 06/16/2021   18:32:18   (   0.03,-137.18) (  -0.41,-135.20)  225.60                80
 06/18/2021   06:48:39   (  -0.02,-137.17) (  -0.61,-139.80)  299.53                80
 06/19/2021   06:30:40   (  -0.02,-137.16) (   0.48,-134.80)  268.52                80
 06/20/2021   18:46:52   (   0.02,-137.14) (   0.54,-139.36)  253.30                80
 06/21/2021   18:28:54   (   0.02,-137.12) (  -0.60,-134.37)  314.20                80
 06/23/2021   06:45:14   (  -0.02,-137.10) (  -0.46,-138.96)  212.43                80