Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 2 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/16/2013   10:25:36   (  -0.05,-135.15) (  -0.06,-135.23)    8.75                80
 02/18/2013   22:28:50   (   0.04,-135.18) (  -0.15,-136.01)   94.07                80
 02/19/2013   22:07:27   (   0.04,-135.21) (   0.87,-131.48)  425.17                80
 02/21/2013   10:31:56   (  -0.03,-135.30) (   0.30,-136.75)  165.63                80
 02/22/2013   10:10:33   (  -0.03,-135.33) (  -0.72,-132.23)  353.29                80
 02/23/2013   22:35:10   (   0.02,-135.32) (  -0.49,-137.53)  252.73                80
 02/24/2013   22:13:46   (   0.02,-135.34) (   0.54,-133.00)  265.86                80
 02/26/2013   10:38:16   (  -0.02,-135.42) (   0.63,-138.28)  326.05                80
 02/27/2013   10:16:52   (  -0.02,-135.44) (  -0.40,-133.75)  192.14                80