Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 1 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/16/2021   07:42:30   (  -0.01,-137.23) (  -0.14,-137.83)   67.75                80
 01/18/2021   07:27:38   (  -0.01,-137.23) (   0.50,-134.87)  267.81                80
 01/18/2021   19:51:33   (   0.01,-137.23) (   0.61,-140.03)  317.77                80
 01/20/2021   19:36:41   (   0.01,-137.22) (  -0.04,-137.07)   17.47                80
 01/22/2021   19:24:28   (   0.01,-137.21) (  -0.63,-134.11)  351.77                80
 01/23/2021   07:48:32   (  -0.02,-137.19) (  -0.47,-139.30)  240.09                80
 01/25/2021   07:33:39   (  -0.02,-137.16) (   0.13,-136.34)   93.40                80
 01/25/2021   19:57:35   (   0.02,-137.16) (   0.92,-141.50)  492.89                80
 01/27/2021   07:21:27   (  -0.02,-137.13) (   0.79,-133.39)  425.97                80
 01/27/2021   19:45:22   (   0.03,-137.13) (   0.32,-138.54)  160.47                80