Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 1.  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)
 04/02/2021   19:19:34   (   0.04,-137.21) (   0.02,-137.20)    2.59                80
 04/04/2021   19:10:02   (   0.04,-137.19) (  -0.60,-134.24)  335.25                80
 04/05/2021   07:31:26   (  -0.04,-137.17) (  -0.51,-139.43)  257.53                80
 04/07/2021   07:16:34   (  -0.03,-137.14) (   0.12,-136.48)   75.88                80
 04/09/2021   07:04:22   (  -0.03,-137.12) (   0.75,-133.52)  409.24                80
 04/09/2021   19:25:37   (   0.03,-137.13) (   0.36,-138.68)  176.25                80
 04/11/2021   19:16:05   (   0.03,-137.10) (  -0.27,-135.72)  156.83                80
 04/12/2021   07:37:29   (  -0.03,-137.08) (  -0.84,-140.91)  436.01                80
 04/13/2021   19:03:53   (   0.03,-137.07) (  -0.91,-132.77)  489.33                80
 04/14/2021   07:25:17   (  -0.03,-137.04) (  -0.20,-137.96)  103.73                80