Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2021 6 10.  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)
 06/11/2021   18:45:16   (  -0.09,-128.47) (  -0.16,-127.99)   53.99                80
 06/13/2021   18:33:06   (  -0.10,-128.46) (  -0.83,-125.04)  388.81                80
 06/14/2021   06:54:29   (   0.09,-128.47) (  -0.30,-130.23)  200.96                80
 06/16/2021   06:39:39   (   0.10,-128.45) (   0.37,-127.28)  133.19                80
 06/16/2021   19:00:54   (  -0.10,-128.43) (   0.77,-132.43)  455.25                80
 06/18/2021   06:27:28   (   0.11,-128.43) (   0.98,-124.32)  467.08                80
 06/18/2021   18:48:44   (  -0.11,-128.41) (   0.10,-129.48)  121.25                80
 06/20/2021   18:39:13   (  -0.11,-128.38) (  -0.51,-126.52)  212.27                80
 06/21/2021   07:00:37   (   0.10,-128.40) (  -0.61,-131.70)  376.34                80
 06/23/2021   06:48:26   (   0.10,-128.36) (   0.01,-128.74)   44.00                80