Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 06/25/2021   06:33:35   (   0.11,-128.35) (   0.63,-125.78)  291.10                80
 06/25/2021   18:54:51   (  -0.10,-128.33) (   0.44,-130.94)  297.38                80
 06/27/2021   18:45:20   (  -0.11,-128.29) (  -0.19,-127.99)   34.91                80
 06/29/2021   18:33:09   (  -0.12,-128.25) (  -0.81,-125.03)  367.25                80
 06/30/2021   06:54:33   (   0.11,-128.27) (  -0.31,-130.21)  221.68                80
 07/02/2021   06:39:42   (   0.12,-128.23) (   0.32,-127.25)  110.43                80
 07/02/2021   19:00:57   (  -0.11,-128.19) (   0.81,-132.40)  479.61                80
 07/04/2021   06:27:31   (   0.12,-128.19) (   0.95,-124.30)  442.29                80
 07/04/2021   18:48:46   (  -0.11,-128.15) (   0.18,-129.44)  147.67                80
 07/06/2021   18:39:15   (  -0.11,-128.10) (  -0.45,-126.49)  183.63                80
 07/07/2021   07:00:39   (   0.10,-128.12) (  -0.67,-131.67)  404.07                80