Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 4 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)
 04/22/2019   19:15:48   (  -0.00,-137.22) (  -0.34,-135.73)  169.57                80
 04/23/2019   07:37:12   (   0.00,-137.18) (  -0.77,-140.92)  425.34                80
 04/25/2019   07:24:59   (  -0.00,-137.17) (  -0.18,-137.96)   89.84                80
 04/27/2019   07:10:07   (  -0.01,-137.16) (   0.47,-135.01)  245.20                80
 04/27/2019   19:31:22   (   0.01,-137.19) (   0.64,-140.16)  337.47                80
 04/29/2019   19:19:10   (   0.01,-137.18) (  -0.01,-137.21)    3.84                80
 05/01/2019   19:09:37   (   0.01,-137.16) (  -0.60,-134.25)  331.33                80
 05/02/2019   07:31:00   (  -0.01,-137.12) (  -0.50,-139.44)  263.24                80
 05/04/2019   07:16:08   (  -0.01,-137.10) (   0.10,-136.48)   70.14                80