Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 9 10.  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)
 09/11/2021   19:10:34   (  -0.04,-137.20) (  -0.64,-134.25)  335.27                80
 09/12/2021   07:29:19   (   0.04,-137.20) (  -0.42,-139.45)  255.43                80
 09/14/2021   07:19:48   (   0.03,-137.18) (   0.20,-136.49)   79.20                80
 09/16/2021   07:07:37   (   0.03,-137.16) (   0.83,-133.53)  413.10                80
 09/16/2021   19:26:12   (  -0.03,-137.15) (   0.31,-138.68)  173.88                80
 09/18/2021   19:16:41   (  -0.02,-137.13) (  -0.32,-135.72)  159.89                80
 09/19/2021   07:38:05   (   0.02,-137.12) (  -0.79,-140.91)  430.96                80
 09/20/2021   19:04:30   (  -0.02,-137.10) (  -0.96,-132.77)  493.51                80
 09/21/2021   07:25:54   (   0.02,-137.10) (  -0.16,-137.96)   97.41                80
 09/23/2021   07:11:03   (   0.02,-137.07) (   0.48,-135.00)  235.78                80
 09/23/2021   19:32:17   (  -0.02,-137.06) (   0.66,-140.15)  351.56                80