Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 22.  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)
 08/22/2021   07:13:35   (   0.03,-137.19) (   0.47,-135.00)  248.57                80
 08/22/2021   19:32:11   (  -0.03,-137.20) (   0.61,-140.16)  337.33                80
 08/24/2021   19:20:00   (  -0.03,-137.21) (  -0.01,-137.20)    2.72                80
 08/26/2021   19:10:30   (  -0.03,-137.21) (  -0.69,-134.26)  336.88                80
 08/27/2021   07:31:54   (   0.04,-137.21) (  -0.43,-139.44)  253.55                80
 08/29/2021   07:19:43   (   0.03,-137.21) (   0.20,-136.48)   82.70                80
 08/31/2021   07:04:52   (   0.03,-137.20) (   0.83,-133.53)  418.14                80
 08/31/2021   19:26:07   (  -0.03,-137.20) (   0.31,-138.67)  168.51                80
 09/02/2021   19:16:36   (  -0.03,-137.18) (  -0.32,-135.72)  166.01                80
 09/03/2021   07:38:00   (   0.03,-137.18) (  -0.80,-140.91)  424.77                80