Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 10.  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)
 08/10/2021   19:10:25   (  -0.02,-137.20) (  -0.66,-134.25)  335.81                80
 08/11/2021   07:29:09   (   0.03,-137.20) (  -0.48,-139.44)  255.41                80
 08/13/2021   07:19:39   (   0.03,-137.19) (   0.19,-136.49)   80.06                80
 08/15/2021   07:07:28   (   0.02,-137.17) (   0.80,-133.53)  414.76                80
 08/15/2021   19:26:04   (  -0.02,-137.18) (   0.28,-138.69)  171.48                80
 08/17/2021   19:16:33   (  -0.02,-137.15) (  -0.34,-135.73)  162.07                80
 08/18/2021   07:35:17   (   0.02,-137.14) (  -0.79,-140.91)  429.75                80
 08/19/2021   19:04:22   (  -0.02,-137.12) (  -0.95,-132.77)  494.80                80
 08/20/2021   07:25:46   (   0.01,-137.10) (  -0.18,-137.95)   96.85                80
 08/22/2021   07:10:55   (   0.01,-137.07) (   0.44,-134.99)  235.82                80
 08/22/2021   19:32:11   (  -0.01,-137.07) (   0.64,-140.15)  350.85                80