Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 14.  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)
 10/15/2021   06:34:12   (   0.35,-128.15) (   0.87,-125.83)  263.70                80
 10/15/2021   18:55:27   (  -0.35,-128.15) (   0.26,-130.98)  322.30                80
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.37,-128.03)   19.51                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.01,-125.07)  361.02                80
 10/20/2021   06:55:09   (   0.35,-128.27) (  -0.06,-130.27)  226.86                80
 10/22/2021   06:40:18   (   0.35,-128.32) (   0.58,-127.32)  114.22                80
 10/22/2021   19:04:13   (  -0.35,-128.31) (   0.55,-132.47)  472.21                80
 10/24/2021   06:28:07   (   0.34,-128.35) (   1.17,-124.35)  454.68                80
 10/24/2021   18:49:22   (  -0.34,-128.35) (  -0.10,-129.51)  131.85                80
 10/26/2021   18:39:51   (  -0.34,-128.38) (  -0.75,-126.56)  207.92                80
 10/27/2021   07:01:15   (   0.33,-128.40) (  -0.37,-131.75)  380.10                80