Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 5 4.  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)
 05/04/2021   07:00:12   (  -0.01,-127.75) (  -0.85,-131.65)  443.19                80
 05/05/2021   18:26:36   (   0.02,-127.85) (  -0.92,-123.50)  494.47                80
 05/06/2021   06:48:00   (  -0.01,-127.83) (  -0.18,-128.70)   98.58                80
 05/08/2021   06:33:07   (  -0.02,-127.90) (   0.44,-125.74)  246.01                80
 05/08/2021   18:54:22   (   0.01,-127.96) (   0.61,-130.91)  334.51                80
 05/10/2021   18:44:50   (   0.01,-128.03) (  -0.01,-127.95)    9.84                80
 05/12/2021   18:32:37   (   0.02,-128.10) (  -0.63,-124.99)  353.62                80
 05/13/2021   06:54:00   (  -0.01,-128.09) (  -0.46,-130.18)  238.28                80
 05/15/2021   06:39:07   (  -0.01,-128.14) (   0.16,-127.22)  104.33                80
 05/15/2021   19:00:23   (   0.01,-128.18) (   0.89,-132.39)  478.33                80
 05/17/2021   06:26:56   (  -0.01,-128.20) (   0.85,-124.28)  446.28                80
 05/17/2021   18:48:10   (   0.01,-128.23) (   0.26,-129.43)  136.29                80