Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 9 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/27/2019   22:02:32   (  -0.30,-127.68) (  -0.70,-129.50)  206.91                80
 09/28/2019   21:46:27   (  -0.31,-127.65) (   0.27,-124.96)  306.08                80
 09/30/2019   10:05:35   (   0.29,-127.62) (   0.88,-130.23)  297.91                80
 10/01/2019   09:49:29   (   0.30,-127.58) (  -0.09,-125.69)  214.50                80
 10/02/2019   22:08:46   (  -0.28,-127.48) (  -1.07,-130.99)  399.91                80
 10/03/2019   21:52:41   (  -0.29,-127.44) (  -0.04,-126.46)  112.52                80
 10/05/2019   10:11:49   (   0.27,-127.41) (   1.25,-131.72)  491.78                80
 10/06/2019   09:55:44   (   0.27,-127.37) (   0.22,-127.20)   20.13                80
 10/08/2019   21:56:15   (  -0.26,-127.22) (  -0.41,-127.96)   83.86                80
 10/09/2019   21:40:09   (  -0.27,-127.17) (   0.57,-123.42)  428.18                80