Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 15.  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)
 07/16/2021   19:16:18   (  -0.00,-137.21) (  -0.31,-135.71)  170.08                80
 07/17/2021   07:35:01   (   0.01,-137.20) (  -0.81,-140.90)  420.59                80
 07/19/2021   07:22:50   (  -0.00,-137.20) (  -0.16,-137.94)   83.84                80
 07/21/2021   07:13:18   (  -0.01,-137.20) (   0.44,-134.97)  252.04                80
 07/21/2021   19:31:54   (   0.01,-137.20) (   0.62,-140.14)  334.08                80
 07/23/2021   19:19:42   (   0.02,-137.18) (   0.03,-137.17)    1.43                80
 07/25/2021   19:10:11   (   0.02,-137.16) (  -0.63,-134.22)  335.74                80
 07/26/2021   07:31:35   (  -0.02,-137.15) (  -0.49,-139.40)  255.47                80
 07/28/2021   07:16:44   (   0.01,-137.13) (   0.18,-136.45)   78.40                80