Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 4 16.  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)
 04/18/2019   07:16:17   (   0.01,-137.18) (   0.17,-136.49)   78.46                80
 04/20/2019   07:04:05   (   0.01,-137.17) (   0.81,-133.53)  413.61                80
 04/20/2019   19:25:20   (  -0.01,-137.20) (   0.30,-138.69)  168.74                80
 04/22/2019   19:15:48   (  -0.00,-137.19) (  -0.34,-135.73)  165.86                80
 04/23/2019   07:37:12   (   0.00,-137.15) (  -0.78,-140.93)  428.77                80
 04/24/2019   19:03:35   (   0.00,-137.17) (  -0.91,-132.77)  499.91                80
 04/25/2019   07:24:59   (  -0.00,-137.13) (  -0.20,-137.96)   94.97                80
 04/27/2019   07:10:07   (  -0.01,-137.10) (   0.45,-135.01)  238.34                80
 04/27/2019   19:31:22   (   0.01,-137.12) (   0.67,-140.16)  345.54                80
 04/29/2019   19:19:10   (   0.01,-137.09) (   0.02,-137.21)   12.69                80