Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 2 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/24/2013   22:13:47   (   0.03,-135.27) (   0.52,-133.00)  258.30                80
 02/26/2013   10:38:16   (  -0.02,-135.35) (   0.65,-138.28)  334.27                80
 02/27/2013   10:16:53   (  -0.03,-135.36) (  -0.38,-133.75)  183.22                80
 02/28/2013   22:41:30   (   0.02,-135.33) (  -0.83,-139.06)  425.41                80
 03/01/2013   22:20:07   (   0.03,-135.33) (   0.21,-134.53)   91.60                80
 03/04/2013   10:25:52   (  -0.02,-135.40) (  -0.02,-135.27)   14.36                80
 03/06/2013   22:29:05   (   0.01,-135.35) (  -0.12,-136.05)   79.62                80
 03/07/2013   22:07:41   (   0.01,-135.35) (   0.86,-131.52)  436.62                80
 03/09/2013   10:29:30   (  -0.00,-135.40) (   0.29,-136.79)  158.57                80