Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 6 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/16/2021   07:43:58   (  -0.02,-137.20) (  -0.48,-139.29)  238.43                80
 06/18/2021   07:34:25   (  -0.02,-137.20) (   0.15,-136.34)   97.24                80
 06/18/2021   19:52:59   (   0.01,-137.19) (   0.95,-141.50)  489.62                80
 06/20/2021   07:22:12   (  -0.02,-137.19) (   0.79,-133.38)  432.33                80
 06/20/2021   19:40:46   (   0.02,-137.18) (   0.31,-138.54)  154.70                80
 06/22/2021   19:31:13   (   0.02,-137.16) (  -0.32,-135.59)  179.34                80
 06/23/2021   07:49:57   (  -0.02,-137.16) (  -0.77,-140.78)  411.66                80
 06/25/2021   07:37:43   (  -0.02,-137.13) (  -0.19,-137.81)   78.81                80
 06/27/2021   07:25:30   (  -0.01,-137.09) (   0.46,-134.86)  253.66                80
 06/27/2021   19:46:45   (   0.01,-137.08) (   0.65,-140.02)  334.01                80
 06/29/2021   19:34:32   (   0.01,-137.05) (  -0.00,-137.06)    2.23                80