Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 7 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/15/2021   19:36:55   (  -0.01,-137.20) (  -0.05,-137.06)   16.73                80
 07/17/2021   19:24:41   (  -0.00,-137.21) (  -0.67,-134.10)  353.85                80
 07/18/2021   07:43:25   (   0.01,-137.20) (  -0.41,-139.29)  237.00                80
 07/20/2021   07:33:51   (  -0.00,-137.20) (   0.21,-136.33)   99.27                80
 07/20/2021   19:52:25   (   0.00,-137.20) (   0.88,-141.49)  487.01                80
 07/22/2021   07:21:36   (  -0.01,-137.19) (   0.77,-133.36)  434.64                80
 07/22/2021   19:40:10   (   0.01,-137.19) (   0.32,-138.52)  151.76                80
 07/24/2021   19:30:36   (   0.02,-137.17) (  -0.30,-135.56)  183.12                80
 07/25/2021   07:49:20   (  -0.02,-137.16) (  -0.77,-140.75)  408.10                80
 07/27/2021   07:39:46   (  -0.01,-137.14) (  -0.15,-137.79)   73.90                80