Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 5.  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   (   0.04,-137.19) (   0.84,-133.54)  416.38                80
 12/05/2021   19:28:56   (  -0.03,-137.19) (   0.29,-138.69)  169.86                80
 12/07/2021   19:14:06   (  -0.03,-137.18) (  -0.36,-135.74)  164.95                80
 12/08/2021   07:38:09   (   0.03,-137.17) (  -0.75,-140.92)  426.01                80
 12/09/2021   19:01:54   (  -0.03,-137.17) (  -0.96,-132.77)  499.56                80
 12/10/2021   07:25:57   (   0.02,-137.16) (  -0.16,-137.96)   91.39                80
 12/12/2021   07:11:06   (   0.02,-137.14) (   0.51,-135.01)  243.16                80
 12/12/2021   19:35:01   (  -0.02,-137.14) (   0.62,-140.16)  343.41                80
 12/14/2021   19:22:49   (  -0.02,-137.12) (   0.01,-137.20)    9.58                80
 12/16/2021   19:10:37   (  -0.02,-137.09) (  -0.60,-134.24)  324.01                80
 12/17/2021   07:32:01   (   0.02,-137.08) (  -0.51,-139.43)  267.32                80