Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 5 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 05/13/2021   19:15:56   (   0.05,-137.18) (  -0.24,-135.73)  164.93                80
 05/14/2021   07:34:41   (  -0.04,-137.17) (  -0.84,-140.93)  426.58                80
 05/15/2021   19:03:47   (   0.04,-137.16) (  -0.92,-132.79)  498.46                80
 05/16/2021   07:22:31   (  -0.04,-137.15) (  -0.21,-137.97)   93.22                80
 05/18/2021   07:13:01   (  -0.03,-137.12) (   0.41,-135.02)  239.51                80
 05/18/2021   19:31:37   (   0.03,-137.12) (   0.68,-140.17)  347.28                80
 05/20/2021   19:19:27   (   0.02,-137.09) (   0.04,-137.22)   15.12                80
 05/22/2021   19:09:57   (   0.02,-137.05) (  -0.59,-134.27)  316.63                80
 05/23/2021   07:28:40   (  -0.02,-137.03) (  -0.54,-139.45)  275.40                80
 05/25/2021   07:19:11   (  -0.02,-136.98) (   0.10,-136.50)   55.40                80