Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 10 21.  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)
 10/21/2020   18:51:48   (   0.16,-128.28) (   0.37,-129.39)  125.92                80
 10/23/2020   18:36:56   (   0.16,-128.24) (  -0.23,-126.43)  206.59                80
 10/24/2020   06:58:19   (  -0.17,-128.26) (  -0.88,-131.62)  381.59                80
 10/26/2020   06:46:07   (  -0.17,-128.22) (  -0.27,-128.66)   49.27                80
 10/28/2020   06:36:35   (  -0.17,-128.18) (   0.33,-125.69)  282.93                80
 10/28/2020   18:57:51   (   0.18,-128.15) (   0.74,-130.85)  307.38                80
 10/30/2020   18:42:59   (   0.18,-128.10) (   0.15,-127.89)   24.38                80
 11/01/2020   18:30:48   (   0.18,-128.06) (  -0.51,-124.93)  355.47                80
 11/02/2020   06:52:12   (  -0.18,-128.07) (  -0.60,-130.12)  233.40                80
 11/04/2020   06:42:40   (  -0.19,-128.01) (  -0.01,-127.16)   96.91                80