Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 10 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/06/2019   09:55:45   (   0.27,-127.79) (   0.13,-127.25)   62.15                80
 10/08/2019   21:56:16   (  -0.26,-127.82) (  -0.31,-128.02)   23.38                80
 10/09/2019   21:40:11   (  -0.27,-127.85) (   0.72,-123.50)  497.13                80
 10/11/2019   09:59:20   (   0.25,-127.97) (   0.41,-128.78)   91.49                80
 10/12/2019   09:43:14   (   0.26,-128.01) (  -0.57,-124.24)  428.74                80
 10/13/2019   22:02:30   (  -0.23,-127.99) (  -0.59,-129.55)  177.92                80
 10/14/2019   21:46:26   (  -0.25,-128.03) (   0.45,-125.03)  342.22                80
 10/16/2019   10:05:34   (   0.22,-128.14) (   0.68,-130.31)  247.03                80
 10/17/2019   09:49:29   (   0.24,-128.16) (  -0.30,-125.77)  272.51                80
 10/18/2019   22:08:45   (  -0.21,-128.14) (  -0.85,-131.09)  335.84                80
 10/19/2019   21:52:40   (  -0.22,-128.16) (   0.13,-126.55)  183.25                80