Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 12 7.  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)
 12/07/2021   06:55:01   (   0.16,-128.01) (  -0.31,-130.20)  249.76                80
 12/09/2021   06:40:09   (   0.16,-127.95) (   0.29,-127.24)   79.76                80
 12/11/2021   06:27:58   (   0.16,-127.88) (   0.95,-124.29)  409.27                80
 12/11/2021   18:51:53   (  -0.14,-127.89) (   0.18,-129.44)  176.09                80
 12/13/2021   18:37:01   (  -0.15,-127.83) (  -0.43,-126.48)  153.29                80
 12/14/2021   07:01:05   (   0.13,-127.79) (  -0.68,-131.67)  440.73                80
 12/15/2021   18:24:49   (  -0.15,-127.76) (  -1.04,-123.52)  482.24                80
 12/16/2021   06:48:53   (   0.13,-127.72) (  -0.07,-128.71)  111.93                80
 12/18/2021   06:34:01   (   0.13,-127.65) (   0.55,-125.75)  216.27                80
 12/18/2021   18:57:56   (  -0.12,-127.65) (   0.57,-130.90)  369.74                80
 12/20/2021   18:45:44   (  -0.12,-127.56) (  -0.05,-127.94)   42.22                80