Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 8 12.  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)
 08/13/2021   07:19:39   (   0.03,-137.19) (   0.20,-136.49)   80.18                80
 08/15/2021   07:07:28   (   0.02,-137.18) (   0.81,-133.53)  414.83                80
 08/15/2021   19:26:03   (  -0.02,-137.18) (   0.32,-138.68)  171.43                80
 08/17/2021   19:16:33   (  -0.02,-137.15) (  -0.35,-135.73)  162.17                80
 08/18/2021   07:35:17   (   0.02,-137.14) (  -0.78,-140.92)  429.68                80
 08/19/2021   19:04:22   (  -0.02,-137.12) (  -0.96,-132.77)  494.84                80
 08/20/2021   07:23:06   (   0.03,-137.10) (  -0.16,-137.96)   97.12                80
 08/22/2021   07:10:55   (   0.02,-137.07) (   0.46,-135.00)  235.55                80
 08/22/2021   19:32:11   (  -0.02,-137.07) (   0.62,-140.16)  351.10                80
 08/24/2021   19:20:00   (  -0.02,-137.03) (   0.00,-137.20)   18.74                80