Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 1 21.  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)
 01/21/2021   19:13:52   (   0.01,-137.23) (  -0.31,-135.70)  173.78                80
 01/22/2021   07:37:55   (  -0.01,-137.22) (  -0.81,-140.89)  417.99                80
 01/24/2021   07:25:44   (   0.02,-137.21) (  -0.16,-137.94)   83.84                80
 01/26/2021   07:10:53   (   0.01,-137.19) (   0.50,-134.99)  250.43                80
 01/26/2021   19:32:08   (  -0.01,-137.19) (   0.63,-140.14)  335.46                80
 01/28/2021   19:19:57   (  -0.00,-137.17) (  -0.02,-137.19)    3.45                80
 01/30/2021   19:10:25   (  -0.00,-137.13) (  -0.62,-134.23)  330.48                80
 01/31/2021   07:31:49   (   0.00,-137.12) (  -0.49,-139.42)  261.93                80
 02/02/2021   07:16:57   (  -0.00,-137.08) (   0.12,-136.46)   70.19                80