Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 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)
 10/06/2014   10:39:29   (   0.23,-135.34) (   0.52,-136.74)  158.46                80
 10/07/2014   10:23:26   (   0.24,-135.34) (  -0.46,-132.20)  357.78                80
 10/08/2014   22:42:45   (  -0.21,-135.35) (  -0.72,-137.52)  247.64                80
 10/09/2014   22:26:43   (  -0.23,-135.35) (   0.32,-133.00)  268.64                80
 10/11/2014   10:45:53   (   0.20,-135.34) (   0.84,-138.28)  333.79                80
 10/12/2014   10:29:49   (   0.21,-135.34) (  -0.15,-133.74)  181.83                80
 10/13/2014   22:49:09   (  -0.18,-135.33) (  -1.03,-139.06)  425.22                80
 10/14/2014   22:33:05   (  -0.19,-135.32) (  -0.04,-134.53)   90.43                80
 10/17/2014   10:33:32   (   0.18,-135.31) (   0.20,-135.27)    3.93                80
 10/19/2014   22:36:48   (  -0.16,-135.27) (  -0.36,-136.06)   90.27                80