Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 8 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/25/2019   09:40:38   (   0.37,-128.42) (  -0.55,-124.26)  474.14                80
 08/26/2019   22:02:34   (  -0.38,-128.40) (  -0.65,-129.56)  131.91                80
 08/27/2019   21:46:30   (  -0.37,-128.39) (   0.37,-125.03)  383.59                80
 08/29/2019   10:08:17   (   0.38,-128.39) (   0.83,-130.29)  217.39                80
 08/30/2019   09:46:52   (   0.37,-128.37) (  -0.19,-125.76)  297.50                80
 08/31/2019   22:08:49   (  -0.37,-128.34) (  -1.01,-131.06)  310.08                80
 09/01/2019   21:52:44   (  -0.37,-128.33) (   0.01,-126.53)  205.24                80
 09/03/2019   10:14:32   (   0.37,-128.33) (   1.13,-131.80)  395.49                80
 09/04/2019   09:53:08   (   0.37,-128.31) (   0.11,-127.27)  119.13                80
 09/05/2019   22:15:03   (  -0.37,-128.27) (  -1.36,-132.56)  490.07                80
 09/06/2019   21:58:59   (  -0.37,-128.25) (  -0.34,-128.03)   24.69                80