Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 3 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/07/2016   10:19:19   (  -0.01,-134.92) (  -0.31,-133.60)  151.05                80
 03/08/2016   22:43:54   (   0.00,-134.85) (  -0.88,-138.90)  460.74                80
 03/09/2016   22:22:29   (   0.01,-134.82) (   0.13,-134.37)   51.97                80
 03/12/2016   10:28:09   (  -0.01,-134.74) (   0.09,-135.09)   40.16                80
 03/13/2016   10:09:23   (  -0.01,-134.70) (  -0.92,-130.56)  472.09                80
 03/14/2016   22:31:19   (   0.00,-134.62) (  -0.26,-135.86)  140.97                80
 03/15/2016   22:09:53   (   0.01,-134.58) (   0.76,-131.33)  370.88                80
 03/17/2016   10:31:38   (  -0.00,-134.52) (   0.48,-136.58)  234.81                80
 03/18/2016   10:15:33   (  -0.00,-134.48) (  -0.53,-132.05)  276.91                80
 03/19/2016   22:37:28   (  -0.00,-134.39) (  -0.64,-137.35)  336.63                80
 03/20/2016   22:16:02   (   0.00,-134.34) (   0.32,-132.80)  174.88                80