Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 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)
 04/10/2021   19:38:26   (   0.04,-137.21) (   0.04,-137.06)   16.65                80
 04/12/2021   19:26:14   (   0.04,-137.19) (  -0.62,-134.11)  350.95                80
 04/13/2021   07:47:38   (  -0.04,-137.18) (  -0.48,-139.30)  241.45                80
 04/15/2021   07:32:45   (  -0.04,-137.16) (   0.12,-136.34)   92.25                80
 04/15/2021   19:54:00   (   0.04,-137.16) (   0.93,-141.51)  493.53                80
 04/17/2021   07:20:33   (  -0.03,-137.13) (   0.78,-133.39)  425.02                80
 04/17/2021   19:41:47   (   0.03,-137.13) (   0.33,-138.55)  160.96                80
 04/19/2021   19:32:15   (   0.03,-137.09) (  -0.27,-135.59)  170.83                80
 04/20/2021   07:50:58   (  -0.03,-137.07) (  -0.82,-140.78)  422.23                80
 04/22/2021   07:38:45   (  -0.02,-137.03) (  -0.21,-137.82)   91.22                80