Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 5 20.  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)
 05/20/2021   19:19:26   (   0.04,-137.20) (   0.07,-137.21)    3.61                80
 05/22/2021   19:09:56   (   0.04,-137.19) (  -0.57,-134.26)  333.21                80
 05/23/2021   07:28:41   (  -0.04,-137.19) (  -0.51,-139.46)  257.77                80
 05/25/2021   07:19:11   (  -0.03,-137.17) (   0.13,-136.50)   76.58                80
 05/27/2021   07:07:00   (  -0.03,-137.15) (   0.71,-133.54)  409.84                80
 05/27/2021   19:25:36   (   0.03,-137.14) (   0.38,-138.70)  177.19                80
 05/29/2021   19:16:06   (   0.02,-137.11) (  -0.27,-135.74)  155.21                80
 05/30/2021   07:37:30   (  -0.02,-137.10) (  -0.86,-140.93)  436.25                80
 05/31/2021   19:03:56   (   0.01,-137.07) (  -0.92,-132.79)  487.38                80
 06/01/2021   07:25:20   (  -0.01,-137.06) (  -0.21,-137.98)  104.08                80