Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 1 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/22/2021   19:24:29   (   0.01,-137.23) (  -0.66,-134.12)  353.83                80
 01/23/2021   07:48:32   (  -0.01,-137.21) (  -0.44,-139.31)  238.04                80
 01/25/2021   07:33:40   (   0.01,-137.20) (   0.21,-136.36)   96.17                80
 01/25/2021   19:54:55   (  -0.01,-137.20) (   0.90,-141.51)  489.59                80
 01/27/2021   07:21:27   (   0.01,-137.18) (   0.81,-133.39)  430.21                80
 01/27/2021   19:42:42   (  -0.01,-137.18) (   0.30,-138.55)  155.75                80
 01/29/2021   19:33:10   (  -0.00,-137.15) (  -0.36,-135.59)  177.44                80
 01/30/2021   07:54:33   (   0.00,-137.13) (  -0.80,-140.77)  414.87                80
 02/01/2021   07:42:21   (   0.00,-137.10) (  -0.14,-137.82)   82.33                80
 02/03/2021   07:27:28   (  -0.00,-137.06) (   0.47,-134.86)  249.70                80
 02/03/2021   19:48:43   (  -0.00,-137.05) (   0.64,-140.01)  336.98                80