Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 15.  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)
 06/15/2021   07:34:57   (  -0.02,-137.20) (  -0.80,-140.94)  424.43                80
 06/17/2021   07:22:46   (  -0.02,-137.20) (  -0.19,-137.98)   88.42                80
 06/19/2021   07:13:15   (  -0.02,-137.19) (   0.42,-135.02)  247.13                80
 06/19/2021   19:31:51   (   0.02,-137.19) (   0.65,-140.18)  339.68                80
 06/21/2021   19:19:40   (   0.02,-137.17) (   0.04,-137.21)    5.11                80
 06/23/2021   19:10:09   (   0.02,-137.15) (  -0.58,-134.25)  328.61                80
 06/24/2021   07:28:54   (  -0.02,-137.14) (  -0.48,-139.45)  262.34                80
 06/26/2021   07:19:23   (  -0.02,-137.11) (   0.14,-136.49)   70.42                80
 06/28/2021   07:04:32   (  -0.01,-137.07) (   0.76,-133.54)  402.86                80
 06/28/2021   19:25:47   (   0.01,-137.06) (   0.38,-138.68)  184.66                80