Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 7 28.  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)
 07/29/2021   18:42:47   (  -0.06,-127.78) (  -0.04,-127.94)   17.85                80
 07/31/2021   18:30:37   (  -0.06,-127.84) (  -0.70,-124.99)  325.04                80
 08/01/2021   06:54:41   (   0.04,-127.93) (  -0.44,-130.17)  255.12                80
 08/03/2021   06:39:51   (   0.04,-127.98) (   0.21,-127.22)   86.59                80
 08/05/2021   06:27:41   (   0.05,-128.03) (   0.87,-124.27)  427.73                80
 08/05/2021   18:51:36   (  -0.02,-127.96) (   0.27,-129.42)  165.16                80
 08/07/2021   18:36:45   (  -0.03,-128.00) (  -0.34,-126.46)  175.43                80
 08/08/2021   07:00:49   (   0.00,-128.10) (  -0.74,-131.66)  404.05                80
 08/10/2021   06:48:38   (   0.01,-128.14) (  -0.13,-128.69)   64.13                80