Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 3 25.  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)
 03/25/2021   18:33:00   (   0.14,-128.42) (  -0.57,-124.95)  394.18                80
 03/26/2021   06:54:23   (  -0.14,-128.34) (  -0.55,-130.14)  205.73                80
 03/28/2021   06:39:32   (  -0.14,-128.32) (   0.12,-127.20)  128.32                80
 03/28/2021   19:00:47   (   0.14,-128.39) (   0.99,-132.35)  450.26                80
 03/30/2021   06:27:20   (  -0.14,-128.30) (   0.74,-124.24)  461.84                80
 03/30/2021   18:48:35   (   0.14,-128.37) (   0.38,-129.39)  116.80                80
 04/01/2021   18:39:03   (   0.13,-128.34) (  -0.24,-126.44)  215.88                80
 04/02/2021   07:00:27   (  -0.13,-128.26) (  -0.87,-131.63)  383.73                80
 04/04/2021   06:48:15   (  -0.12,-128.22) (  -0.25,-128.67)   52.15                80
 04/06/2021   06:33:23   (  -0.12,-128.18) (   0.38,-125.72)  279.40                80
 04/06/2021   18:54:39   (   0.11,-128.24) (   0.68,-130.88)  300.65                80