Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 10 15.  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   06:34:11   (   0.35,-128.14) (   0.84,-125.82)  263.57                80
 10/15/2021   18:55:27   (  -0.35,-128.15) (   0.24,-130.99)  322.26                80
 10/17/2021   18:45:56   (  -0.35,-128.20) (  -0.39,-128.03)   19.37                80
 10/19/2021   18:33:45   (  -0.35,-128.25) (  -1.03,-125.07)  360.86                80
 10/20/2021   06:55:09   (   0.35,-128.27) (  -0.10,-130.26)  227.22                80
 10/22/2021   06:40:18   (   0.35,-128.31) (   0.54,-127.31)  113.77                80
 10/22/2021   19:04:14   (  -0.35,-128.31) (   0.52,-132.47)  472.50                80
 10/24/2021   06:28:07   (   0.34,-128.35) (   1.19,-124.35)  454.12                80
 10/24/2021   18:49:23   (  -0.34,-128.35) (  -0.12,-129.52)  132.27                80
 10/26/2021   18:39:51   (  -0.34,-128.38) (  -0.71,-126.55)  207.43                80
 10/27/2021   07:01:15   (   0.33,-128.40) (  -0.35,-131.75)  380.80                80