Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 10 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/14/2015   10:39:48   (   0.19,-134.79) (   0.95,-138.13)  381.06                80
 10/15/2015   10:23:42   (   0.21,-134.75) (  -0.05,-133.60)  131.60                80
 10/16/2015   22:42:59   (  -0.18,-134.71) (  -1.11,-138.91)  479.06                80
 10/17/2015   22:26:53   (  -0.19,-134.67) (  -0.11,-134.38)   33.60                80
 10/20/2015   10:27:14   (   0.18,-134.56) (   0.30,-135.11)   63.63                80
 10/21/2015   10:11:09   (   0.19,-134.51) (  -0.70,-130.58)  447.86                80
 10/22/2015   22:30:24   (  -0.16,-134.44) (  -0.51,-135.88)  164.90                80
 10/23/2015   22:14:18   (  -0.17,-134.40) (   0.49,-131.35)  346.81                80
 10/25/2015   10:33:26   (   0.14,-134.32) (   0.64,-136.63)  262.91                80
 10/26/2015   10:17:19   (   0.16,-134.27) (  -0.30,-132.09)  248.04                80
 10/27/2015   22:36:36   (  -0.13,-134.18) (  -0.84,-137.40)  366.68                80