Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 9 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)
 09/22/2019   19:10:37   (   0.02,-137.21) (  -0.63,-134.25)  337.33                80
 09/23/2019   07:32:00   (  -0.02,-137.20) (  -0.49,-139.43)  253.99                80
 09/25/2019   07:17:09   (  -0.01,-137.18) (   0.12,-136.48)   80.29                80
 09/27/2019   07:05:00   (   0.01,-137.17) (   0.80,-133.53)  413.99                80
 09/27/2019   19:26:15   (  -0.00,-137.17) (   0.29,-138.69)  172.35                80
 09/29/2019   19:16:44   (  -0.01,-137.14) (  -0.33,-135.73)  161.21                80
 09/30/2019   07:38:08   (   0.01,-137.13) (  -0.79,-140.92)  430.39                80
 10/01/2019   19:04:33   (  -0.02,-137.12) (  -0.94,-132.77)  494.16                80
 10/02/2019   07:25:57   (   0.02,-137.10) (  -0.17,-137.96)   97.60                80
 10/04/2019   07:13:46   (   0.02,-137.07) (   0.45,-135.00)  234.71                80
 10/04/2019   19:32:22   (  -0.02,-137.06) (   0.64,-140.16)  352.26                80