Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2016   22:40:48   (  -0.10,-134.86) (  -1.04,-139.02)  474.16                80
 11/04/2016   22:24:43   (  -0.11,-134.89) (  -0.02,-134.49)   46.13                80
 11/07/2016   10:25:07   (   0.10,-135.03) (   0.13,-135.24)   24.39                80
 11/08/2016   10:09:03   (   0.11,-135.05) (  -0.88,-130.71)  495.28                80
 11/09/2016   22:28:19   (  -0.08,-135.04) (  -0.32,-136.02)  111.51                80
 11/10/2016   22:12:15   (  -0.09,-135.07) (   0.70,-131.49)  407.95                80
 11/12/2016   10:31:23   (   0.07,-135.16) (   0.44,-136.77)  183.64                80
 11/13/2016   10:15:18   (   0.08,-135.18) (  -0.58,-132.24)  335.27                80
 11/14/2016   22:34:35   (  -0.06,-135.16) (  -0.62,-137.55)  272.90                80
 11/15/2016   22:18:30   (  -0.07,-135.18) (   0.41,-133.02)  245.62                80