Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 8 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)
 08/08/2021   07:00:49   (  -0.01,-128.09) (  -0.74,-131.66)  404.69                80
 08/10/2021   06:48:39   (   0.00,-128.13) (  -0.14,-128.69)   64.78                80
 08/12/2021   06:33:49   (   0.02,-128.16) (   0.53,-125.74)  274.78                80
 08/12/2021   18:57:43   (   0.01,-128.09) (   0.61,-130.89)  318.83                80
 08/14/2021   18:42:53   (   0.00,-128.12) (  -0.06,-127.94)   20.50                80
 08/16/2021   18:30:42   (   0.00,-128.14) (  -0.67,-124.98)  358.58                80
 08/17/2021   06:54:46   (  -0.03,-128.23) (  -0.46,-130.17)  221.29                80
 08/19/2021   06:39:56   (  -0.03,-128.24) (   0.22,-127.22)  116.06                80
 08/19/2021   19:03:50   (   0.06,-128.15) (   0.98,-132.36)  478.92                80
 08/21/2021   06:27:45   (  -0.02,-128.25) (   0.84,-124.26)  453.11                80
 08/21/2021   18:51:40   (   0.05,-128.16) (   0.30,-129.41)  141.74                80