Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 8 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2012   22:38:24   (   0.38,-135.13) (  -0.50,-139.05)  446.91                80
 08/05/2012   22:22:20   (   0.37,-135.11) (   0.52,-134.53)   67.09                80
 08/08/2012   10:22:43   (  -0.38,-135.06) (  -0.31,-135.26)   23.81                80
 08/09/2012   10:06:38   (  -0.38,-135.03) (  -1.33,-130.73)  489.52                80
 08/10/2012   22:25:54   (   0.39,-134.97) (   0.15,-136.04)  121.30                80
 08/11/2012   22:09:50   (   0.39,-134.94) (   1.17,-131.51)  391.60                80
 08/13/2012   10:31:38   (  -0.40,-134.90) (   0.00,-136.78)  213.93                80
 08/14/2012   10:12:54   (  -0.40,-134.87) (  -1.01,-132.26)  298.48                80
 08/15/2012   22:32:09   (   0.41,-134.80) (  -0.23,-137.55)  313.73                80
 08/16/2012   22:16:05   (   0.41,-134.76) (   0.79,-133.02)  198.50                80