Simultaneous Nadir Overpasses (SNOs) between GOES-17 and TERRA
TLE Epoch: 2021 4 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/01/2021   07:32:33   (  -0.04,-137.19) (   0.15,-136.35)   95.20                80
 05/01/2021   19:53:48   (   0.04,-137.20) (   0.95,-141.51)  489.88                80
 05/03/2021   07:20:20   (  -0.04,-137.18) (   0.78,-133.40)  430.47                80
 05/03/2021   19:41:35   (   0.03,-137.19) (   0.32,-138.56)  154.64                80
 05/05/2021   19:32:02   (   0.03,-137.19) (  -0.32,-135.60)  180.59                80
 05/06/2021   07:53:26   (  -0.03,-137.17) (  -0.77,-140.80)  411.60                80
 05/08/2021   07:41:12   (  -0.03,-137.16) (  -0.19,-137.83)   76.57                80
 05/10/2021   07:26:19   (  -0.02,-137.14) (   0.46,-134.88)  258.07                80
 05/10/2021   19:47:34   (   0.02,-137.15) (   0.63,-140.03)  327.49                80
 05/12/2021   19:38:01   (   0.02,-137.13) (  -0.02,-137.08)    6.97                80