Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 24.  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   19:38:16   (   0.04,-137.20) (  -0.01,-137.08)   14.39                80
 04/28/2021   19:26:03   (   0.04,-137.18) (  -0.63,-134.12)  348.71                80
 04/29/2021   07:47:26   (  -0.04,-137.17) (  -0.46,-139.32)  243.14                80
 05/01/2021   07:32:33   (  -0.03,-137.15) (   0.16,-136.36)   90.24                80
 05/01/2021   19:53:48   (   0.03,-137.15) (   0.94,-141.52)  496.36                80
 05/03/2021   07:20:19   (  -0.02,-137.12) (   0.74,-133.39)  423.04                80
 05/03/2021   19:41:35   (   0.02,-137.12) (   0.30,-138.56)  163.58                80
 05/05/2021   19:32:01   (   0.02,-137.09) (  -0.27,-135.59)  169.22                80
 05/06/2021   07:53:25   (  -0.01,-137.07) (  -0.82,-140.79)  422.74                80
 05/08/2021   07:41:12   (  -0.01,-137.04) (  -0.17,-137.83)   90.14                80