Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 8.  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)
 07/09/2021   06:48:27   (   0.09,-128.01) (  -0.08,-128.70)   79.08                80
 07/11/2021   06:33:36   (   0.11,-127.94) (   0.56,-125.75)  249.51                80
 07/11/2021   18:54:51   (  -0.09,-127.89) (   0.56,-130.90)  341.83                80
 07/13/2021   18:42:40   (  -0.10,-127.82) (  -0.08,-127.94)   13.56                80
 07/15/2021   18:33:08   (  -0.11,-127.74) (  -0.67,-124.97)  314.46                80
 07/16/2021   06:54:33   (   0.09,-127.76) (  -0.39,-130.17)  273.62                80
 07/18/2021   06:39:41   (   0.10,-127.68) (   0.20,-127.20)   53.62                80
 07/20/2021   06:27:29   (   0.10,-127.58) (   0.79,-124.24)  380.16                80
 07/20/2021   18:48:43   (  -0.08,-127.52) (   0.33,-129.39)  212.83                80