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)
 08/24/2021   19:20:00   (  -0.03,-137.20) (  -0.02,-137.20)    1.65                80
 08/26/2021   19:10:29   (  -0.03,-137.21) (  -0.64,-134.24)  336.69                80
 08/27/2021   07:31:54   (   0.04,-137.21) (  -0.42,-139.44)  253.92                80
 08/29/2021   07:19:43   (   0.03,-137.21) (   0.21,-136.49)   82.24                80
 08/31/2021   07:07:32   (   0.03,-137.20) (   0.84,-133.53)  417.55                80
 08/31/2021   19:26:07   (  -0.03,-137.19) (   0.30,-138.68)  168.96                80
 09/02/2021   19:16:36   (  -0.03,-137.18) (  -0.33,-135.72)  165.42                80
 09/03/2021   07:38:00   (   0.03,-137.17) (  -0.79,-140.91)  425.54                80
 09/04/2021   19:04:25   (  -0.02,-137.15) (  -0.97,-132.76)  499.31                80
 09/05/2021   07:25:49   (   0.02,-137.14) (  -0.15,-137.95)   91.72                80