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,-137.18) (   0.80,-133.53)  415.24                80
 08/31/2021   19:26:08   (  -0.03,-137.18) (   0.28,-138.69)  170.55                80
 09/02/2021   19:16:37   (  -0.03,-137.16) (  -0.33,-135.73)  163.13                80
 09/03/2021   07:35:21   (   0.03,-137.14) (  -0.79,-140.91)  429.09                80
 09/04/2021   19:04:27   (  -0.03,-137.13) (  -0.95,-132.77)  496.17                80
 09/05/2021   07:23:10   (   0.03,-137.11) (  -0.17,-137.95)   96.15                80
 09/07/2021   07:13:39   (   0.03,-137.08) (   0.45,-135.00)  236.52                80
 09/07/2021   19:32:15   (  -0.03,-137.08) (   0.63,-140.16)  349.75                80
 09/09/2021   19:20:04   (  -0.03,-137.04) (   0.01,-137.20)   17.90                80
 09/11/2021   19:10:33   (  -0.02,-136.99) (  -0.62,-134.24)  313.15                80
 09/12/2021   07:29:17   (   0.02,-136.97) (  -0.49,-139.43)  279.63                80