Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 8.  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)
 08/08/2021   19:19:55   (  -0.01,-137.20) (   0.00,-137.20)    1.74                80
 08/10/2021   19:10:25   (  -0.02,-137.20) (  -0.66,-134.25)  335.87                80
 08/11/2021   07:29:09   (   0.03,-137.20) (  -0.47,-139.44)  255.39                80
 08/13/2021   07:19:39   (   0.03,-137.19) (   0.20,-136.49)   80.08                80
 08/15/2021   07:07:28   (   0.02,-137.17) (   0.81,-133.53)  414.77                80
 08/15/2021   19:26:04   (  -0.02,-137.18) (   0.27,-138.69)  171.44                80
 08/17/2021   19:16:33   (  -0.02,-137.15) (  -0.34,-135.73)  162.11                80
 08/18/2021   07:35:17   (   0.02,-137.14) (  -0.79,-140.92)  429.77                80
 08/19/2021   19:04:22   (  -0.02,-137.12) (  -0.95,-132.77)  494.86                80
 08/20/2021   07:25:46   (   0.01,-137.10) (  -0.17,-137.96)   96.85                80