Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 18.  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)
 06/19/2021   07:13:16   (  -0.02,-137.19) (   0.44,-135.02)  247.20                80
 06/19/2021   19:31:51   (   0.02,-137.19) (   0.63,-140.18)  339.33                80
 06/21/2021   19:19:40   (   0.02,-137.17) (   0.02,-137.22)    4.88                80
 06/23/2021   19:10:09   (   0.03,-137.15) (  -0.60,-134.26)  329.16                80
 06/24/2021   07:28:53   (  -0.02,-137.14) (  -0.53,-139.44)  262.05                80
 06/26/2021   07:19:22   (  -0.02,-137.11) (   0.10,-136.49)   70.82                80
 06/28/2021   07:04:31   (  -0.02,-137.08) (   0.72,-133.53)  403.40                80
 06/28/2021   19:25:47   (   0.02,-137.07) (   0.35,-138.69)  183.83                80
 06/30/2021   19:16:16   (   0.02,-137.03) (  -0.27,-135.73)  148.71                80
 07/01/2021   07:35:00   (  -0.01,-137.02) (  -0.85,-140.91)  442.52                80