Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 9 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2021   07:48:18   (   0.05,-137.21) (  -0.74,-140.79)  407.91                80
 09/29/2021   07:36:05   (   0.04,-137.20) (  -0.08,-137.84)   72.67                80
 10/01/2021   07:23:51   (   0.04,-137.18) (   0.52,-134.88)  261.95                80
 10/01/2021   19:45:06   (  -0.04,-137.19) (   0.57,-140.04)  324.23                80
 10/03/2021   19:35:32   (  -0.03,-137.16) (  -0.04,-137.08)    9.82                80
 10/05/2021   19:23:18   (  -0.03,-137.14) (  -0.65,-134.12)  343.25                80
 10/06/2021   07:44:42   (   0.03,-137.12) (  -0.43,-139.31)  248.69                80
 10/08/2021   07:29:48   (   0.03,-137.09) (   0.19,-136.35)   83.88                80
 10/10/2021   07:20:14   (   0.03,-137.05) (   0.82,-133.39)  415.53                80
 10/10/2021   19:38:49   (  -0.03,-137.04) (   0.28,-138.55)  171.60                80