Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 30.  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)
 03/30/2021   06:27:20   (  -0.14,-128.30) (   0.72,-124.23)  462.16                80
 03/30/2021   18:48:36   (   0.13,-128.38) (   0.34,-129.40)  115.26                80
 04/01/2021   18:39:04   (   0.13,-128.36) (  -0.28,-126.44)  217.84                80
 04/02/2021   07:00:28   (  -0.12,-128.27) (  -0.83,-131.64)  382.78                80
 04/04/2021   06:48:16   (  -0.12,-128.23) (  -0.21,-128.68)   50.63                80
 04/06/2021   06:33:24   (  -0.12,-128.20) (   0.42,-125.72)  281.33                80
 04/06/2021   18:54:39   (   0.11,-128.27) (   0.69,-130.88)  297.44                80
 04/08/2021   18:45:07   (   0.11,-128.23) (   0.06,-127.92)   34.76                80
 04/10/2021   18:32:55   (   0.11,-128.20) (  -0.57,-124.97)  366.92                80
 04/11/2021   06:54:18   (  -0.11,-128.11) (  -0.53,-130.16)  232.98                80