Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 8 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/16/2014   22:35:30   (   0.27,-135.47) (   0.17,-136.03)   64.09                80
 08/17/2014   22:19:27   (   0.27,-135.46) (   1.13,-131.50)  450.77                80
 08/19/2014   10:38:38   (  -0.28,-135.42) (   0.02,-136.78)  154.04                80
 08/20/2014   10:22:36   (  -0.28,-135.41) (  -1.00,-132.25)  360.41                80
 08/21/2014   22:41:55   (   0.29,-135.40) (  -0.17,-137.56)  245.75                80
 08/22/2014   22:25:51   (   0.29,-135.38) (   0.79,-133.02)  268.54                80
 08/24/2014   10:45:03   (  -0.29,-135.35) (   0.36,-138.30)  336.81                80
 08/25/2014   10:29:00   (  -0.29,-135.33) (  -0.67,-133.78)  177.22                80
 08/26/2014   22:48:19   (   0.29,-135.31) (  -0.57,-139.07)  429.71                80
 08/27/2014   22:32:16   (   0.29,-135.29) (   0.46,-134.55)   84.01                80