Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 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)
 04/17/2021   07:20:32   (  -0.04,-137.19) (   0.75,-133.39)  432.21                80
 04/17/2021   19:41:48   (   0.04,-137.19) (   0.30,-138.55)  154.11                80
 04/19/2021   19:32:15   (   0.04,-137.18) (  -0.30,-135.59)  179.97                80
 04/20/2021   07:53:39   (  -0.03,-137.17) (  -0.79,-140.79)  411.58                80
 04/22/2021   07:41:26   (  -0.03,-137.14) (  -0.18,-137.83)   78.26                80
 04/24/2021   07:29:13   (  -0.03,-137.11) (   0.43,-134.87)  254.70                80
 04/24/2021   19:47:49   (   0.03,-137.11) (   0.62,-140.04)  332.22                80
 04/26/2021   19:38:16   (   0.03,-137.07) (  -0.00,-137.08)    2.98                80
 04/28/2021   19:26:03   (   0.03,-137.03) (  -0.62,-134.12)  331.47                80
 04/29/2021   07:44:46   (  -0.02,-137.01) (  -0.53,-139.30)  260.76                80