Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 27.  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)
 12/28/2021   07:11:01   (   0.01,-137.20) (   0.50,-135.00)  251.07                80
 12/28/2021   19:34:56   (  -0.01,-137.21) (   0.62,-140.15)  334.44                80
 12/30/2021   19:20:04   (  -0.02,-137.19) (  -0.03,-137.19)    1.96                80
 01/01/2022   19:10:31   (  -0.02,-137.17) (  -0.63,-134.23)  334.19                80
 01/02/2022   07:31:55   (   0.02,-137.15) (  -0.46,-139.42)  257.68                80
 01/04/2022   07:17:02   (   0.02,-137.12) (   0.14,-136.45)   75.61                80
 01/06/2022   07:04:49   (   0.02,-137.09) (   0.76,-133.49)  408.79                80
 01/06/2022   19:26:05   (  -0.02,-137.09) (   0.30,-138.65)  177.60                80
 01/08/2022   19:16:32   (  -0.01,-137.05) (  -0.32,-135.69)  155.53                80
 01/09/2022   07:37:54   (   0.01,-137.04) (  -0.82,-140.87)  436.30                80