Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2019 6 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)
 06/18/2019   06:48:24   (   0.11,-128.20) (  -0.02,-128.73)   60.68                80
 06/20/2019   06:33:34   (   0.13,-128.16) (   0.65,-125.78)  270.22                80
 06/20/2019   18:57:29   (  -0.11,-128.19) (   0.50,-130.93)  312.12                80
 06/22/2019   18:42:39   (  -0.12,-128.14) (  -0.17,-127.98)   18.68                80
 06/24/2019   18:30:28   (  -0.13,-128.09) (  -0.77,-125.02)  349.10                80
 06/25/2019   06:54:32   (   0.10,-128.04) (  -0.35,-130.21)  246.75                80
 06/27/2019   06:39:41   (   0.11,-127.98) (   0.26,-127.25)   83.16                80
 06/29/2019   06:27:30   (   0.12,-127.92) (   0.87,-124.29)  412.52                80
 06/29/2019   18:51:26   (  -0.09,-127.94) (   0.21,-129.44)  170.89                80
 07/01/2019   18:36:35   (  -0.10,-127.87) (  -0.40,-126.48)  157.49                80