Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 4 11.  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)
 04/11/2021   19:16:05   (   0.04,-137.20) (  -0.27,-135.72)  168.02                80
 04/12/2021   07:37:29   (  -0.04,-137.18) (  -0.84,-140.91)  424.12                80
 04/14/2021   07:25:17   (  -0.04,-137.16) (  -0.20,-137.96)   90.23                80
 04/16/2021   07:10:25   (  -0.04,-137.14) (   0.44,-135.01)  242.85                80
 04/16/2021   19:31:40   (   0.04,-137.14) (   0.68,-140.16)  343.24                80
 04/18/2021   19:19:28   (   0.03,-137.10) (   0.03,-137.21)   11.54                80
 04/20/2021   19:09:55   (   0.03,-137.06) (  -0.55,-134.24)  320.03                80
 04/21/2021   07:28:39   (  -0.03,-137.04) (  -0.55,-139.44)  272.93                80
 04/23/2021   07:19:07   (  -0.02,-136.99) (   0.10,-136.48)   57.80                80