Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 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)
 04/11/2021   19:16:05   (   0.04,-137.20) (  -0.29,-135.72)  167.61                80
 04/12/2021   07:37:29   (  -0.04,-137.18) (  -0.82,-140.92)  424.85                80
 04/14/2021   07:25:17   (  -0.04,-137.15) (  -0.19,-137.96)   91.37                80
 04/16/2021   07:10:24   (  -0.04,-137.12) (   0.39,-135.00)  241.38                80
 04/16/2021   19:31:40   (   0.04,-137.13) (   0.66,-140.16)  344.59                80
 04/18/2021   19:19:27   (   0.03,-137.09) (   0.08,-137.20)   13.18                80
 04/20/2021   19:09:55   (   0.03,-137.04) (  -0.56,-134.25)  317.94                80
 04/21/2021   07:28:39   (  -0.03,-137.02) (  -0.54,-139.44)  275.31                80
 04/23/2021   07:19:06   (  -0.02,-136.96) (   0.05,-136.47)   55.09                80