Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 8 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/11/2014   22:31:45   (   0.26,-135.49) (   0.47,-134.50)  113.18                80
 08/13/2014   10:50:56   (  -0.26,-135.47) (   0.70,-139.78)  490.71                80
 08/14/2014   10:34:54   (  -0.26,-135.46) (  -0.33,-135.25)   24.52                80
 08/16/2014   22:35:29   (   0.27,-135.45) (   0.11,-136.02)   65.93                80
 08/17/2014   22:19:27   (   0.27,-135.44) (   1.14,-131.50)  448.81                80
 08/19/2014   10:38:38   (  -0.28,-135.41) (   0.02,-136.78)  156.16                80
 08/20/2014   10:22:36   (  -0.28,-135.39) (  -1.01,-132.25)  358.20                80
 08/21/2014   22:41:54   (   0.29,-135.38) (  -0.23,-137.55)  248.08                80
 08/22/2014   22:25:52   (   0.29,-135.36) (   0.80,-133.03)  266.09                80
 08/24/2014   10:45:03   (  -0.29,-135.32) (   0.35,-138.31)  339.47                80
 08/25/2014   10:28:59   (  -0.29,-135.30) (  -0.62,-133.77)  174.46                80