Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 4 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 04/16/2013   10:17:38   (   0.04,-134.97) (  -0.20,-133.82)  130.81                80
 04/17/2013   22:39:36   (  -0.04,-135.02) (  -0.98,-139.12)  467.69                80
 04/18/2013   22:23:32   (  -0.05,-135.06) (   0.06,-134.60)   52.26                80
 04/21/2013   10:26:37   (   0.05,-135.13) (   0.10,-135.34)   24.12                80
 04/22/2013   10:05:13   (   0.05,-135.16) (  -0.94,-130.82)  495.22                80
 04/23/2013   22:27:11   (  -0.04,-135.20) (  -0.23,-136.12)  104.77                80
 04/24/2013   22:11:06   (  -0.05,-135.22) (   0.75,-131.58)  414.20                80
 04/26/2013   10:32:56   (   0.04,-135.25) (   0.39,-136.86)  183.33                80
 04/27/2013   10:11:31   (   0.04,-135.27) (  -0.60,-132.33)  334.91                80
 04/28/2013   22:33:28   (  -0.03,-135.29) (  -0.57,-137.63)  267.13                80