Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 21.  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)
 07/21/2021   07:13:23   (  -0.00,-137.20) (   0.47,-134.99)  250.68                80
 07/21/2021   19:31:58   (   0.00,-137.21) (   0.61,-140.15)  334.93                80
 07/23/2021   19:19:47   (   0.01,-137.19) (   0.03,-137.19)    2.85                80
 07/25/2021   19:10:17   (  -0.01,-137.18) (  -0.61,-134.24)  333.89                80
 07/26/2021   07:29:02   (   0.02,-137.17) (  -0.47,-139.43)  258.13                80
 07/28/2021   07:16:52   (   0.02,-137.15) (   0.17,-136.48)   76.02                80
 07/30/2021   07:07:22   (   0.02,-137.13) (   0.82,-133.53)  410.08                80
 07/30/2021   19:25:57   (  -0.02,-137.13) (   0.32,-138.68)  175.98                80
 08/01/2021   19:16:27   (  -0.02,-137.11) (  -0.32,-135.73)  157.36                80
 08/02/2021   07:37:51   (   0.02,-137.09) (  -0.81,-140.91)  434.68                80
 08/03/2021   19:04:16   (   0.01,-137.07) (  -0.91,-132.76)  490.36                80