Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 6 16.  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)
 06/17/2021   07:22:47   (  -0.02,-137.20) (  -0.16,-137.98)   88.48                80
 06/19/2021   07:13:16   (  -0.02,-137.19) (   0.45,-135.02)  247.11                80
 06/19/2021   19:31:51   (   0.02,-137.19) (   0.63,-140.18)  339.65                80
 06/21/2021   19:22:20   (   0.02,-137.17) (   0.01,-137.22)    5.38                80
 06/23/2021   19:10:10   (   0.02,-137.15) (  -0.61,-134.26)  328.69                80
 06/24/2021   07:28:53   (  -0.02,-137.14) (  -0.52,-139.45)  262.30                80
 06/26/2021   07:16:42   (  -0.02,-137.11) (   0.10,-136.49)   70.44                80
 06/28/2021   07:04:31   (  -0.01,-137.07) (   0.73,-133.53)  402.92                80
 06/28/2021   19:25:47   (   0.01,-137.06) (   0.35,-138.69)  184.54                80