Simultaneous Nadir Overpasses (SNOs) between GOES-17 and LANDSAT-8
TLE Epoch: 2021 3 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)
 03/31/2021   07:10:31   (  -0.05,-137.21) (   0.42,-134.99)  252.11                80
 03/31/2021   19:31:45   (   0.05,-137.22) (   0.69,-140.14)  333.19                80
 04/02/2021   19:19:34   (   0.04,-137.20) (   0.01,-137.20)    3.38                80
 04/04/2021   19:10:03   (   0.04,-137.18) (  -0.61,-134.24)  334.87                80
 04/05/2021   07:31:26   (  -0.04,-137.17) (  -0.50,-139.43)  257.53                80
 04/07/2021   07:16:34   (  -0.03,-137.14) (   0.13,-136.48)   75.89                80
 04/09/2021   07:04:21   (  -0.03,-137.12) (   0.71,-133.51)  409.19                80
 04/09/2021   19:25:37   (   0.03,-137.12) (   0.35,-138.68)  176.75                80
 04/11/2021   19:16:05   (   0.03,-137.09) (  -0.29,-135.72)  156.33                80
 04/12/2021   07:37:29   (  -0.03,-137.08) (  -0.81,-140.92)  436.10                80