Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2021   19:38:15   (   0.05,-137.20) (   0.00,-137.08)   14.63                80
 04/28/2021   19:26:02   (   0.05,-137.18) (  -0.62,-134.12)  348.99                80
 04/29/2021   07:47:26   (  -0.04,-137.17) (  -0.47,-139.31)  243.27                80
 05/01/2021   07:32:33   (  -0.04,-137.14) (   0.16,-136.36)   90.12                80
 05/01/2021   19:53:48   (   0.03,-137.15) (   0.94,-141.51)  496.07                80
 05/03/2021   07:20:19   (  -0.03,-137.11) (   0.73,-133.39)  422.94                80
 05/03/2021   19:41:35   (   0.03,-137.12) (   0.31,-138.56)  163.26                80
 05/05/2021   19:32:01   (   0.02,-137.09) (  -0.27,-135.59)  169.57                80
 05/06/2021   07:53:25   (  -0.02,-137.07) (  -0.82,-140.79)  422.79                80
 05/08/2021   07:41:12   (  -0.02,-137.04) (  -0.17,-137.83)   90.17                80