Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 1 12.  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)
 01/12/2021   06:58:14   (  -0.05,-128.10) (  -0.79,-131.63)  401.48                80
 01/14/2021   06:46:01   (  -0.06,-128.06) (  -0.20,-128.66)   68.89                80
 01/16/2021   06:36:29   (  -0.07,-128.02) (   0.45,-125.71)  263.67                80
 01/16/2021   18:55:05   (   0.03,-128.03) (   0.61,-130.87)  321.91                80
 01/18/2021   18:45:32   (   0.04,-127.99) (   0.01,-127.90)   10.48                80
 01/20/2021   18:33:19   (   0.05,-127.95) (  -0.58,-124.94)  342.55                80
 01/21/2021   06:52:03   (  -0.01,-127.91) (  -0.51,-130.13)  252.77                80
 01/23/2021   06:42:31   (  -0.01,-127.86) (   0.15,-127.18)   78.58                80
 01/25/2021   06:30:18   (  -0.02,-127.81) (   0.76,-124.21)  409.34                80
 01/25/2021   18:48:54   (  -0.02,-127.82) (   0.30,-129.38)  176.26                80