Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 30.  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)
 08/31/2021   07:07:33   (   0.03,-137.20) (   0.80,-133.52)  417.49                80
 08/31/2021   19:26:08   (  -0.03,-137.21) (   0.28,-138.68)  168.11                80
 09/02/2021   19:16:37   (  -0.03,-137.21) (  -0.33,-135.72)  167.96                80
 09/03/2021   07:35:22   (   0.03,-137.20) (  -0.74,-140.92)  423.22                80
 09/05/2021   07:25:51   (   0.03,-137.19) (  -0.12,-137.97)   87.87                80
 09/07/2021   07:11:00   (   0.03,-137.18) (   0.50,-135.01)  247.13                80
 09/07/2021   19:32:15   (  -0.03,-137.18) (   0.64,-140.15)  338.97                80
 09/09/2021   19:20:04   (  -0.03,-137.16) (   0.01,-137.20)    5.79                80
 09/11/2021   19:10:33   (  -0.03,-137.13) (  -0.62,-134.24)  328.72                80
 09/12/2021   07:31:57   (   0.02,-137.12) (  -0.50,-139.43)  263.04                80