Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 6 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/20/2021   19:40:46   (   0.02,-137.19) (   0.33,-138.54)  153.78                80
 06/22/2021   19:31:13   (   0.02,-137.17) (  -0.31,-135.58)  180.66                80
 06/23/2021   07:49:57   (  -0.02,-137.16) (  -0.78,-140.78)  410.91                80
 06/25/2021   07:37:44   (  -0.02,-137.13) (  -0.14,-137.82)   77.62                80
 06/27/2021   07:28:10   (  -0.02,-137.10) (   0.44,-134.86)  255.34                80
 06/27/2021   19:46:45   (   0.02,-137.10) (   0.66,-140.01)  331.63                80
 06/29/2021   19:37:12   (   0.02,-137.07) (   0.01,-137.06)    1.22                80
 07/01/2021   19:24:59   (   0.02,-137.04) (  -0.64,-134.11)  333.77                80
 07/02/2021   07:43:42   (  -0.01,-137.02) (  -0.51,-139.29)  257.96                80
 07/04/2021   07:34:09   (  -0.01,-136.98) (   0.14,-136.34)   74.16                80