Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 7 18.  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)
 07/18/2019   07:00:39   (   0.02,-127.88) (  -0.79,-131.63)  427.04                80
 07/20/2019   06:48:29   (   0.03,-127.94) (  -0.10,-128.69)   84.14                80
 07/22/2019   06:33:38   (   0.04,-128.00) (   0.53,-125.73)  258.57                80
 07/22/2019   18:57:33   (  -0.01,-128.03) (   0.60,-130.88)  324.60                80
 07/24/2019   18:42:42   (  -0.02,-128.08) (  -0.03,-127.92)   17.82                80
 07/26/2019   18:30:31   (  -0.02,-128.13) (  -0.67,-124.97)  359.55                80
 07/27/2019   06:54:35   (  -0.01,-128.14) (  -0.44,-130.15)  228.88                80
 07/29/2019   06:39:44   (  -0.01,-128.18) (   0.20,-127.20)  111.66                80
 07/29/2019   19:03:39   (   0.04,-128.19) (   0.94,-132.35)  472.90                80
 07/31/2019   06:27:33   (   0.00,-128.21) (   0.84,-124.24)  451.50                80
 07/31/2019   18:51:28   (   0.03,-128.22) (   0.30,-129.39)  133.13                80