Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 8.  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)
 06/09/2021   06:33:31   (   0.08,-128.48) (   0.68,-125.80)  304.81                80
 06/09/2021   18:54:46   (  -0.08,-128.48) (   0.47,-130.95)  281.67                80
 06/11/2021   18:45:16   (  -0.09,-128.47) (  -0.20,-128.00)   53.82                80
 06/13/2021   18:33:05   (  -0.09,-128.46) (  -0.80,-125.04)  388.70                80
 06/14/2021   06:54:30   (   0.09,-128.46) (  -0.27,-130.24)  201.13                80
 06/16/2021   06:39:39   (   0.10,-128.45) (   0.34,-127.27)  132.98                80
 06/16/2021   19:00:55   (  -0.10,-128.43) (   0.74,-132.43)  455.43                80
 06/18/2021   06:27:29   (   0.11,-128.43) (   1.01,-124.33)  466.86                80
 06/18/2021   18:48:44   (  -0.11,-128.41) (   0.13,-129.47)  121.45                80
 06/20/2021   18:39:13   (  -0.11,-128.38) (  -0.48,-126.51)  212.04                80
 06/21/2021   07:00:38   (   0.10,-128.40) (  -0.58,-131.71)  376.63                80