Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 4.  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)
 04/04/2021   19:07:22   (   0.05,-137.22) (  -0.57,-134.23)  339.56                80
 04/05/2021   07:31:26   (  -0.05,-137.21) (  -0.54,-139.42)  252.48                80
 04/07/2021   07:16:34   (  -0.04,-137.21) (   0.09,-136.47)   83.44                80
 04/09/2021   07:04:22   (  -0.04,-137.21) (   0.72,-133.52)  419.20                80
 04/09/2021   19:25:38   (   0.04,-137.22) (   0.34,-138.68)  165.74                80
 04/11/2021   19:16:06   (   0.04,-137.22) (  -0.29,-135.73)  169.79                80
 04/12/2021   07:37:29   (  -0.04,-137.20) (  -0.81,-140.92)  422.38                80
 04/14/2021   07:25:17   (  -0.04,-137.19) (  -0.17,-137.97)   87.70                80
 04/16/2021   07:10:24   (  -0.04,-137.17) (   0.41,-135.00)  246.27                80
 04/16/2021   19:31:40   (   0.04,-137.18) (   0.65,-140.17)  339.40                80