Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 12 25.  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)
 12/25/2019   19:20:03   (   0.01,-137.19) (   0.04,-137.18)    2.92                80
 12/27/2019   19:10:31   (   0.02,-137.17) (  -0.58,-134.22)  335.12                80
 12/28/2019   07:29:15   (  -0.02,-137.16) (  -0.53,-139.41)  256.28                80
 12/30/2019   07:19:43   (  -0.03,-137.14) (   0.10,-136.45)   77.90                80
 01/01/2020   07:07:31   (  -0.04,-137.11) (   0.72,-133.49)  411.66                80
 01/01/2020   19:26:07   (   0.03,-137.11) (   0.34,-138.66)  175.12                80
 01/03/2020   19:16:35   (   0.04,-137.08) (  -0.29,-135.70)  158.08                80
 01/04/2020   07:35:19   (  -0.03,-137.07) (  -0.82,-140.89)  433.71                80
 01/05/2020   19:04:22   (   0.04,-137.04) (  -0.85,-132.73)  490.50                80
 01/06/2020   07:23:06   (  -0.03,-137.03) (  -0.24,-137.92)  101.48                80