Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/12/2021   19:26:13   (   0.04,-137.19) (  -0.60,-134.10)  350.66                80
 04/13/2021   07:47:37   (  -0.04,-137.17) (  -0.50,-139.30)  241.47                80
 04/15/2021   07:32:45   (  -0.04,-137.15) (   0.16,-136.35)   91.97                80
 04/15/2021   19:54:00   (   0.04,-137.15) (   0.95,-141.50)  494.24                80
 04/17/2021   07:20:32   (  -0.04,-137.12) (   0.76,-133.39)  424.42                80
 04/17/2021   19:41:47   (   0.04,-137.12) (   0.35,-138.54)  161.97                80
 04/19/2021   19:32:15   (   0.03,-137.08) (  -0.31,-135.60)  169.57                80
 04/20/2021   07:50:58   (  -0.03,-137.06) (  -0.84,-140.78)  423.26                80
 04/22/2021   07:38:46   (  -0.02,-137.01) (  -0.17,-137.83)   92.51                80
 04/24/2021   07:29:13   (  -0.02,-136.96) (   0.44,-134.87)  237.94                80
 04/24/2021   19:47:48   (   0.02,-136.96) (   0.67,-140.03)  349.05                80