Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 1.  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)
 12/01/2021   07:32:04   (   0.03,-137.20) (  -0.43,-139.45)  254.91                80
 12/03/2021   07:17:12   (   0.03,-137.19) (   0.15,-136.48)   80.57                80
 12/05/2021   07:05:01   (   0.02,-137.18) (   0.80,-133.53)  414.98                80
 12/05/2021   19:26:17   (  -0.02,-137.18) (   0.27,-138.69)  171.43                80
 12/07/2021   19:16:45   (  -0.02,-137.15) (  -0.32,-135.73)  162.36                80
 12/08/2021   07:38:09   (   0.01,-137.14) (  -0.80,-140.91)  429.07                80
 12/09/2021   19:04:33   (  -0.01,-137.13) (  -0.91,-132.76)  495.93                80
 12/10/2021   07:25:58   (   0.01,-137.12) (  -0.14,-137.96)   95.57                80
 12/12/2021   07:11:06   (   0.01,-137.09) (   0.46,-135.00)  237.95                80
 12/12/2021   19:32:21   (  -0.01,-137.09) (   0.67,-140.15)  348.80                80
 12/14/2021   19:20:10   (  -0.00,-137.06) (   0.01,-137.20)   15.96                80