Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 7 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/09/2021   07:49:40   (  -0.01,-137.18) (  -0.78,-140.77)  408.22                80
 07/11/2021   07:37:26   (  -0.01,-137.18) (  -0.18,-137.81)   72.44                80
 07/13/2021   07:27:53   (  -0.01,-137.17) (   0.49,-134.86)  262.85                80
 07/13/2021   19:46:28   (   0.00,-137.16) (   0.60,-140.01)  324.23                80
 07/15/2021   19:36:54   (  -0.00,-137.15) (  -0.01,-137.05)   10.45                80
 07/17/2021   19:24:40   (  -0.00,-137.12) (  -0.63,-134.09)  344.58                80
 07/18/2021   07:43:24   (   0.00,-137.12) (  -0.45,-139.29)  246.29                80
 07/20/2021   07:33:50   (  -0.01,-137.09) (   0.17,-136.33)   87.00                80
 07/22/2021   07:21:35   (  -0.02,-137.05) (   0.73,-133.35)  419.34                80
 07/22/2021   19:40:10   (   0.02,-137.03) (   0.36,-138.51)  168.60                80