Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 4 14.  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)
 04/15/2021   06:27:14   (  -0.10,-127.98) (   0.67,-124.24)  424.33                80
 04/15/2021   18:48:29   (   0.09,-128.04) (   0.38,-129.41)  155.45                80
 04/17/2021   18:38:58   (   0.08,-127.98) (  -0.26,-126.45)  173.55                80
 04/18/2021   07:00:21   (  -0.08,-127.89) (  -0.85,-131.65)  426.84                80
 04/20/2021   06:48:08   (  -0.07,-127.81) (  -0.26,-128.68)   98.68                80
 04/22/2021   06:33:15   (  -0.07,-127.74) (   0.33,-125.72)  229.13                80
 04/22/2021   18:54:31   (   0.07,-127.79) (   0.73,-130.88)  352.28                80
 04/24/2021   18:42:18   (   0.07,-127.71) (   0.14,-127.92)   24.82                80
 04/26/2021   18:32:46   (   0.07,-127.62) (  -0.52,-124.97)  302.38                80
 04/27/2021   06:54:09   (  -0.06,-127.54) (  -0.64,-130.15)  297.40                80