Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 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)
 04/13/2021   07:47:37   (  -0.04,-137.20) (  -0.50,-139.30)  239.02                80
 04/15/2021   07:32:45   (  -0.04,-137.20) (   0.16,-136.35)   96.97                80
 04/15/2021   19:54:00   (   0.04,-137.20) (   0.95,-141.50)  489.02                80
 04/17/2021   07:20:32   (  -0.04,-137.19) (   0.76,-133.39)  432.03                80
 04/17/2021   19:41:47   (   0.04,-137.19) (   0.35,-138.54)  154.18                80
 04/19/2021   19:32:15   (   0.03,-137.18) (  -0.31,-135.60)  179.94                80
 04/20/2021   07:53:39   (  -0.03,-137.17) (  -0.78,-140.79)  411.70                80
 04/22/2021   07:41:26   (  -0.03,-137.14) (  -0.17,-137.83)   78.32                80
 04/24/2021   07:29:13   (  -0.02,-137.11) (   0.44,-134.87)  254.67                80
 04/24/2021   19:47:48   (   0.02,-137.11) (   0.67,-140.03)  332.15                80
 04/26/2021   19:35:35   (   0.02,-137.08) (   0.05,-137.07)    3.12                80