Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 12 6.  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)
 12/07/2021   19:14:05   (  -0.03,-137.18) (  -0.31,-135.72)  164.93                80
 12/08/2021   07:38:09   (   0.03,-137.17) (  -0.74,-140.93)  426.00                80
 12/09/2021   19:01:54   (  -0.03,-137.17) (  -0.97,-132.77)  499.53                80
 12/10/2021   07:25:57   (   0.02,-137.16) (  -0.14,-137.96)   91.37                80
 12/12/2021   07:11:06   (   0.02,-137.14) (   0.46,-135.00)  243.16                80
 12/12/2021   19:35:01   (  -0.02,-137.14) (   0.60,-140.16)  343.44                80
 12/14/2021   19:20:09   (  -0.02,-137.12) (  -0.00,-137.20)    9.42                80
 12/16/2021   19:10:37   (  -0.02,-137.09) (  -0.62,-134.24)  323.97                80
 12/17/2021   07:32:01   (   0.02,-137.08) (  -0.49,-139.43)  267.29                80
 12/19/2021   07:19:49   (   0.01,-137.05) (   0.13,-136.47)   65.27                80