Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 7 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)
 07/10/2020   18:45:16   (   0.01,-128.30) (  -0.05,-127.95)   40.04                80
 07/12/2020   18:33:06   (   0.01,-128.33) (  -0.72,-125.00)  379.38                80
 07/13/2020   06:54:29   (  -0.01,-128.35) (  -0.41,-130.19)  209.49                80
 07/15/2020   06:39:39   (  -0.01,-128.37) (   0.25,-127.24)  129.18                80
 07/15/2020   19:00:54   (   0.01,-128.36) (   0.89,-132.38)  458.00                80
 07/17/2020   06:27:28   (  -0.02,-128.38) (   0.85,-124.27)  467.14                80
 07/17/2020   18:48:44   (   0.02,-128.37) (   0.23,-129.43)  120.06                80
 07/19/2020   18:39:13   (   0.02,-128.38) (  -0.38,-126.47)  217.08                80
 07/20/2020   07:00:38   (  -0.02,-128.40) (  -0.69,-131.67)  371.32                80
 07/22/2020   06:48:27   (  -0.02,-128.40) (  -0.08,-128.71)   35.20                80