Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 4 2.  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)
 04/02/2021   07:00:27   (  -0.12,-128.26) (  -0.85,-131.63)  383.18                80
 04/04/2021   06:48:15   (  -0.12,-128.23) (  -0.23,-128.67)   51.12                80
 04/06/2021   06:33:23   (  -0.11,-128.19) (   0.40,-125.72)  280.82                80
 04/06/2021   18:54:39   (   0.11,-128.27) (   0.66,-130.89)  297.35                80
 04/08/2021   18:45:07   (   0.11,-128.23) (   0.03,-127.93)   34.79                80
 04/10/2021   18:32:55   (   0.11,-128.20) (  -0.60,-124.98)  366.90                80
 04/11/2021   06:54:18   (  -0.10,-128.10) (  -0.56,-130.16)  233.71                80
 04/13/2021   06:39:26   (  -0.11,-128.06) (   0.08,-127.20)   97.84                80
 04/13/2021   19:00:42   (   0.10,-128.13) (   0.98,-132.37)  481.57                80
 04/15/2021   06:27:14   (  -0.10,-128.02) (   0.72,-124.25)  428.75                80
 04/15/2021   18:48:29   (   0.10,-128.08) (   0.40,-129.40)  150.73                80