Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 1 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/04/2021   19:39:28   (  -0.00,-137.22) (  -0.04,-137.07)   16.90                80
 01/06/2021   19:27:16   (  -0.00,-137.24) (  -0.66,-134.12)  354.95                80
 01/07/2021   07:48:40   (   0.00,-137.23) (  -0.44,-139.31)  236.16                80
 01/09/2021   07:33:48   (  -0.00,-137.24) (   0.19,-136.35)  100.98                80
 01/09/2021   19:55:03   (   0.01,-137.25) (   0.93,-141.50)  484.22                80
 01/11/2021   07:21:36   (  -0.01,-137.24) (   0.82,-133.40)  437.30                80
 01/11/2021   19:42:51   (   0.01,-137.25) (   0.29,-138.55)  148.05                80
 01/13/2021   19:30:39   (   0.01,-137.24) (  -0.34,-135.59)  187.63                80
 01/14/2021   07:54:42   (  -0.02,-137.23) (  -0.76,-140.79)  403.87                80
 01/16/2021   07:42:31   (  -0.01,-137.22) (  -0.12,-137.83)   68.52                80