Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 5 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/14/2021   19:25:47   (   0.04,-137.20) (  -0.64,-134.12)  350.72                80
 05/15/2021   07:44:30   (  -0.04,-137.20) (  -0.51,-139.30)  239.85                80
 05/17/2021   07:34:57   (  -0.03,-137.20) (   0.14,-136.35)   96.16                80
 05/17/2021   19:53:32   (   0.03,-137.19) (   0.95,-141.51)  490.33                80
 05/19/2021   07:22:44   (  -0.03,-137.19) (   0.80,-133.40)  431.61                80
 05/19/2021   19:41:19   (   0.02,-137.19) (   0.29,-138.55)  155.02                80
 05/21/2021   19:31:45   (   0.02,-137.17) (  -0.31,-135.59)  179.96                80
 05/22/2021   07:50:29   (  -0.02,-137.17) (  -0.77,-140.79)  410.93                80
 05/24/2021   07:38:15   (  -0.02,-137.15) (  -0.17,-137.82)   76.75                80
 05/26/2021   07:28:41   (  -0.01,-137.12) (   0.44,-134.86)  256.51                80
 05/26/2021   19:47:16   (   0.01,-137.11) (   0.65,-140.02)  330.88                80