Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 4 15.  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)
 04/15/2019   19:09:45   (   0.00,-137.22) (  -0.64,-134.25)  337.92                80
 04/16/2019   07:31:09   (  -0.00,-137.18) (  -0.48,-139.44)  256.80                80
 04/18/2019   07:16:17   (  -0.00,-137.18) (   0.16,-136.49)   78.87                80
 04/20/2019   07:04:05   (  -0.01,-137.17) (   0.79,-133.53)  414.10                80
 04/20/2019   19:25:20   (   0.01,-137.20) (   0.32,-138.69)  168.76                80
 04/22/2019   19:15:48   (  -0.02,-137.19) (  -0.32,-135.73)  165.09                80
 04/23/2019   07:37:12   (   0.02,-137.15) (  -0.79,-140.92)  429.23                80
 04/24/2019   19:03:36   (  -0.03,-137.17) (  -0.95,-132.78)  498.79                80
 04/25/2019   07:25:00   (   0.03,-137.13) (  -0.15,-137.97)   95.64                80
 04/27/2019   07:10:08   (   0.03,-137.10) (   0.49,-135.02)  237.43                80
 04/27/2019   19:31:23   (  -0.03,-137.12) (   0.63,-140.17)  346.91                80