Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 6.  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)
 08/06/2021   07:13:30   (   0.00,-137.18) (   0.46,-135.00)  248.01                80
 08/06/2021   19:32:06   (  -0.01,-137.19) (   0.61,-140.16)  337.74                80
 08/08/2021   19:19:55   (  -0.02,-137.17) (   0.01,-137.20)    4.79                80
 08/10/2021   19:10:25   (  -0.03,-137.14) (  -0.65,-134.25)  328.85                80
 08/11/2021   07:29:09   (   0.03,-137.12) (  -0.48,-139.44)  263.50                80
 08/13/2021   07:19:39   (   0.03,-137.09) (   0.18,-136.49)   69.27                80
 08/15/2021   07:07:28   (   0.02,-137.05) (   0.79,-133.53)  401.13                80
 08/15/2021   19:26:03   (  -0.02,-137.05) (   0.35,-138.67)  185.32                80
 08/17/2021   19:16:32   (  -0.01,-137.00) (  -0.26,-135.71)  145.58                80
 08/18/2021   07:37:56   (   0.00,-136.97) (  -0.86,-140.90)  447.19                80
 08/19/2021   19:04:21   (   0.00,-136.94) (  -0.88,-132.75)  475.85                80