Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 9 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/13/2021   07:36:21   (   0.04,-137.19) (  -0.12,-137.82)   72.15                80
 09/15/2021   07:26:48   (   0.04,-137.17) (   0.52,-134.87)  262.04                80
 09/15/2021   19:45:23   (  -0.04,-137.17) (   0.58,-140.03)  325.11                80
 09/17/2021   19:35:50   (  -0.03,-137.15) (  -0.06,-137.07)    8.76                80
 09/19/2021   19:23:36   (  -0.03,-137.12) (  -0.65,-134.11)  342.27                80
 09/20/2021   07:45:00   (   0.03,-137.12) (  -0.44,-139.30)  248.71                80
 09/22/2021   07:30:07   (   0.03,-137.09) (   0.21,-136.35)   84.67                80
 09/24/2021   07:17:53   (   0.03,-137.06) (   0.80,-133.39)  417.49                80
 09/24/2021   19:39:08   (  -0.03,-137.05) (   0.30,-138.55)  170.12                80