Simultaneous Nadir Overpasses (SNOs) between GOES-15 and LANDSAT-8
TLE Epoch: 2020 8 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)
 08/18/2020   06:27:37   (   0.01,-127.96) (   0.78,-124.24)  422.09                80
 08/18/2020   18:48:53   (  -0.00,-127.93) (   0.31,-129.40)  167.53                80
 08/20/2020   18:39:23   (  -0.01,-127.86) (  -0.28,-126.44)  159.98                80
 08/21/2020   07:00:47   (   0.00,-127.85) (  -0.81,-131.64)  430.87                80
 08/22/2020   18:27:14   (  -0.01,-127.78) (  -0.92,-123.50)  486.99                80
 08/23/2020   06:48:38   (   0.01,-127.77) (  -0.18,-128.69)  104.02                80
 08/25/2020   06:33:50   (   0.01,-127.69) (   0.43,-125.74)  222.16                80
 08/25/2020   18:55:05   (  -0.00,-127.65) (   0.68,-130.89)  368.59                80
 08/27/2020   18:42:56   (  -0.00,-127.56) (   0.09,-127.94)   43.25                80
 08/29/2020   18:33:28   (  -0.00,-127.47) (  -0.55,-124.99)  281.58                80
 08/30/2020   06:54:53   (  -0.01,-127.46) (  -0.56,-130.19)  309.32                80