Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 8 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2014   10:34:53   (  -0.26,-135.47) (  -0.30,-135.25)   25.32                80
 08/16/2014   22:35:30   (   0.27,-135.46) (   0.15,-136.03)   64.79                80
 08/17/2014   22:19:27   (   0.27,-135.45) (   1.17,-131.51)  449.93                80
 08/19/2014   10:38:38   (  -0.28,-135.41) (   0.04,-136.77)  155.07                80
 08/20/2014   10:22:35   (  -0.28,-135.40) (  -0.98,-132.25)  359.33                80
 08/21/2014   22:41:55   (   0.29,-135.39) (  -0.19,-137.56)  246.75                80
 08/22/2014   22:25:52   (   0.29,-135.37) (   0.83,-133.03)  267.46                80
 08/24/2014   10:45:02   (  -0.29,-135.33) (   0.38,-138.30)  338.13                80
 08/25/2014   10:29:00   (  -0.29,-135.32) (  -0.65,-133.78)  175.82                80
 08/26/2014   22:48:18   (   0.30,-135.30) (  -0.58,-139.07)  431.00                80