Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 4.  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)
 06/04/2021   18:39:07   (  -0.08,-128.47) (  -0.47,-126.52)  222.13                80
 06/05/2021   07:00:32   (   0.08,-128.47) (  -0.60,-131.71)  368.50                80
 06/07/2021   06:48:21   (   0.08,-128.48) (   0.00,-128.75)   31.48                80
 06/09/2021   06:33:31   (   0.08,-128.48) (   0.66,-125.80)  305.03                80
 06/09/2021   18:54:47   (  -0.08,-128.48) (   0.42,-130.96)  281.22                80
 06/11/2021   18:45:16   (  -0.09,-128.48) (  -0.18,-128.00)   54.52                80
 06/13/2021   18:33:06   (  -0.09,-128.47) (  -0.84,-125.05)  389.63                80
 06/14/2021   06:54:30   (   0.09,-128.47) (  -0.28,-130.23)  200.28                80
 06/16/2021   06:39:39   (   0.10,-128.46) (   0.33,-127.27)  134.08                80
 06/16/2021   19:00:54   (  -0.10,-128.44) (   0.76,-132.43)  454.21                80