Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 9 18.  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)
 09/18/2019   07:11:02   (  -0.01,-137.20) (   0.47,-135.00)  250.92                80
 09/18/2019   19:32:17   (   0.02,-137.21) (   0.67,-140.15)  334.86                80
 09/20/2019   19:20:07   (   0.03,-137.21) (   0.01,-137.20)    2.16                80
 09/22/2019   19:10:36   (   0.03,-137.20) (  -0.60,-134.24)  336.69                80
 09/23/2019   07:32:00   (  -0.03,-137.19) (  -0.53,-139.43)  254.30                80
 09/25/2019   07:17:10   (  -0.03,-137.18) (   0.14,-136.48)   79.91                80
 09/27/2019   07:04:59   (  -0.02,-137.16) (   0.75,-133.52)  413.44                80
 09/27/2019   19:26:15   (   0.02,-137.15) (   0.33,-138.68)  173.42                80
 09/29/2019   19:16:44   (   0.01,-137.13) (  -0.28,-135.72)  159.74                80
 09/30/2019   07:38:08   (  -0.02,-137.12) (  -0.84,-140.91)  431.40                80
 10/01/2019   19:04:33   (   0.03,-137.10) (  -0.89,-132.76)  492.85                80