Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 7 14.  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)
 07/14/2021   07:07:14   (  -0.00,-137.19) (   0.78,-133.51)  417.84                80
 07/14/2021   19:25:49   (  -0.00,-137.20) (   0.29,-138.68)  167.72                80
 07/16/2021   19:16:17   (  -0.00,-137.21) (  -0.30,-135.71)  169.95                80
 07/17/2021   07:35:02   (   0.01,-137.20) (  -0.76,-140.91)  420.60                80
 07/19/2021   07:22:50   (  -0.00,-137.20) (  -0.17,-137.94)   83.82                80
 07/21/2021   07:13:19   (  -0.01,-137.20) (   0.48,-134.98)  252.17                80
 07/21/2021   19:31:54   (   0.01,-137.20) (   0.64,-140.13)  333.99                80
 07/23/2021   19:22:22   (   0.02,-137.18) (   0.04,-137.17)    2.82                80
 07/25/2021   19:07:31   (   0.01,-137.16) (  -0.62,-134.21)  335.43                80
 07/26/2021   07:31:35   (  -0.01,-137.15) (  -0.50,-139.40)  255.63                80