Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/23/2021   07:49:57   (  -0.02,-137.20) (  -0.78,-140.78)  406.69                80
 06/25/2021   07:40:24   (  -0.02,-137.20) (  -0.14,-137.82)   70.21                80
 06/27/2021   07:25:31   (  -0.02,-137.20) (   0.50,-134.87)  265.87                80
 06/27/2021   19:46:46   (   0.02,-137.20) (   0.59,-140.03)  320.57                80
 06/29/2021   19:37:12   (   0.02,-137.20) (   0.01,-137.06)   15.45                80
 07/01/2021   19:24:59   (   0.01,-137.19) (  -0.64,-134.11)  351.07                80
 07/02/2021   07:46:23   (  -0.01,-137.19) (  -0.44,-139.30)  239.56                80
 07/04/2021   07:31:29   (  -0.01,-137.18) (   0.16,-136.34)   95.71                80
 07/04/2021   19:52:44   (   0.01,-137.18) (   0.94,-141.50)  491.23                80
 07/06/2021   07:19:16   (  -0.01,-137.16) (   0.81,-133.39)  430.16                80