Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 4 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2013   22:20:41   (  -0.02,-134.95) (   0.09,-134.59)   41.83                80
 04/05/2013   10:23:45   (   0.02,-134.88) (   0.11,-135.32)   50.22                80
 04/06/2013   10:07:41   (   0.02,-134.84) (  -0.86,-130.79)  461.85                80
 04/07/2013   22:29:38   (  -0.02,-134.76) (  -0.32,-136.09)  152.05                80
 04/08/2013   22:08:15   (  -0.02,-134.72) (   0.71,-131.57)  359.71                80
 04/10/2013   10:30:03   (   0.02,-134.68) (   0.51,-136.83)  245.17                80
 04/11/2013   10:14:00   (   0.01,-134.64) (  -0.53,-132.30)  266.39                80
 04/12/2013   22:35:56   (  -0.01,-134.54) (  -0.71,-137.59)  348.25                80
 04/13/2013   22:14:33   (  -0.01,-134.49) (   0.33,-133.07)  162.85                80
 04/15/2013   10:36:21   (   0.01,-134.44) (   0.89,-138.33)  443.31                80