Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 4.  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)
 12/05/2021   07:05:02   (   0.03,-137.19) (   0.83,-133.53)  416.31                80
 12/05/2021   19:28:56   (  -0.03,-137.19) (   0.30,-138.68)  170.10                80
 12/07/2021   19:16:45   (  -0.02,-137.17) (  -0.35,-135.73)  164.35                80
 12/08/2021   07:38:09   (   0.02,-137.17) (  -0.76,-140.92)  426.67                80
 12/09/2021   19:04:33   (  -0.02,-137.16) (  -0.95,-132.77)  498.60                80
 12/10/2021   07:25:57   (   0.02,-137.15) (  -0.16,-137.96)   92.42                80
 12/12/2021   07:11:05   (   0.02,-137.13) (   0.44,-135.00)  241.78                80
 12/12/2021   19:32:21   (  -0.02,-137.12) (   0.62,-140.16)  344.97                80
 12/14/2021   19:20:09   (  -0.01,-137.10) (   0.01,-137.20)   11.30                80
 12/16/2021   19:10:37   (  -0.01,-137.07) (  -0.60,-134.24)  321.83                80
 12/17/2021   07:32:01   (   0.01,-137.06) (  -0.50,-139.43)  269.49                80