Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 12 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)
 12/21/2019   07:23:12   (  -0.02,-137.21) (  -0.19,-137.94)   83.20                80
 12/23/2019   07:13:40   (  -0.02,-137.20) (   0.43,-134.98)  252.10                80
 12/23/2019   19:32:16   (   0.02,-137.21) (   0.63,-140.14)  333.97                80
 12/25/2019   19:22:44   (   0.02,-137.19) (   0.01,-137.19)    1.12                80
 12/27/2019   19:10:32   (   0.03,-137.17) (  -0.61,-134.23)  334.83                80
 12/28/2019   07:29:16   (  -0.03,-137.15) (  -0.50,-139.42)  256.89                80
 12/30/2019   07:19:44   (  -0.04,-137.13) (   0.13,-136.46)   77.00                80
 01/01/2020   07:07:31   (  -0.04,-137.10) (   0.70,-133.49)  410.49                80
 01/01/2020   19:26:06   (   0.04,-137.10) (   0.36,-138.65)  176.16                80
 01/03/2020   19:16:35   (   0.04,-137.07) (  -0.27,-135.69)  156.74                80