Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2019 8 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)
 08/21/2019   19:07:47   (   0.02,-137.21) (  -0.61,-134.23)  338.02                80
 08/22/2019   07:31:51   (  -0.02,-137.21) (  -0.52,-139.42)  252.45                80
 08/24/2019   07:17:01   (  -0.02,-137.21) (   0.16,-136.47)   84.19                80
 08/26/2019   07:04:50   (  -0.03,-137.20) (   0.78,-133.51)  419.76                80
 08/26/2019   19:28:45   (   0.03,-137.20) (   0.35,-138.66)  166.33                80
 08/28/2019   19:13:54   (   0.03,-137.19) (  -0.26,-135.70)  168.29                80
 08/29/2019   07:37:59   (  -0.04,-137.18) (  -0.80,-140.90)  422.77                80
 08/31/2019   07:25:48   (  -0.03,-137.16) (  -0.18,-137.94)   88.82                80
 09/02/2019   07:10:57   (  -0.03,-137.13) (   0.45,-134.99)  244.88                80
 09/02/2019   19:34:51   (   0.04,-137.13) (   0.69,-140.13)  341.79                80