Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 7 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/13/2021   07:27:53   (  -0.00,-137.17) (   0.46,-134.85)  263.14                80
 07/13/2021   19:46:27   (  -0.00,-137.16) (   0.63,-140.01)  323.91                80
 07/15/2021   19:36:55   (  -0.01,-137.15) (  -0.04,-137.06)   11.15                80
 07/17/2021   19:24:41   (  -0.00,-137.13) (  -0.66,-134.10)  345.36                80
 07/18/2021   07:43:23   (   0.01,-137.13) (  -0.48,-139.28)  245.52                80
 07/20/2021   07:33:49   (  -0.00,-137.10) (   0.14,-136.32)   87.93                80
 07/20/2021   19:52:24   (   0.01,-137.08) (   0.95,-141.48)  499.68                80
 07/22/2021   07:21:36   (  -0.02,-137.06) (   0.77,-133.36)  420.57                80
 07/22/2021   19:40:10   (   0.02,-137.04) (   0.32,-138.52)  167.18                80
 07/24/2021   19:30:36   (   0.02,-137.00) (  -0.31,-135.56)  164.52                80
 07/25/2021   07:49:19   (  -0.01,-136.99) (  -0.83,-140.74)  426.79                80
 07/26/2021   19:18:22   (   0.01,-136.96) (  -0.94,-132.60)  496.04                80