Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 2 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/14/2021   19:32:58   (   0.03,-137.23) (  -0.32,-135.57)  187.84                80
 02/15/2021   07:54:21   (  -0.03,-137.22) (  -0.78,-140.77)  403.57                80
 02/17/2021   07:42:08   (  -0.03,-137.21) (  -0.15,-137.81)   67.87                80
 02/19/2021   07:27:15   (  -0.03,-137.20) (   0.48,-134.85)  267.12                80
 02/19/2021   19:48:30   (   0.02,-137.20) (   0.62,-140.01)  318.74                80
 02/21/2021   19:38:57   (   0.02,-137.18) (  -0.02,-137.05)   15.11                80
 02/23/2021   19:26:44   (   0.00,-137.15) (  -0.65,-134.09)  348.07                80
 02/24/2021   07:45:28   (  -0.00,-137.13) (  -0.43,-139.28)  244.16                80
 02/26/2021   07:35:54   (  -0.00,-137.10) (   0.15,-136.32)   88.36                80
 02/26/2021   19:54:29   (  -0.00,-137.09) (   0.95,-141.47)  498.21                80