Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 2 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)
 02/16/2013   10:25:36   (  -0.05,-135.15) (  -0.04,-135.23)    8.46                80
 02/18/2013   22:28:51   (   0.04,-135.18) (  -0.13,-136.01)   94.03                80
 02/19/2013   22:07:28   (   0.04,-135.21) (   0.88,-131.48)  425.11                80
 02/21/2013   10:31:57   (  -0.03,-135.30) (   0.31,-136.75)  166.11                80
 02/22/2013   10:10:33   (  -0.03,-135.33) (  -0.70,-132.23)  352.71                80
 02/23/2013   22:35:12   (   0.02,-135.32) (  -0.49,-137.54)  253.29                80
 02/24/2013   22:13:48   (   0.02,-135.34) (   0.52,-133.01)  265.15                80
 02/26/2013   10:38:19   (  -0.02,-135.42) (   0.62,-138.29)  327.26                80
 02/27/2013   10:16:55   (  -0.02,-135.44) (  -0.39,-133.76)  190.75                80
 02/28/2013   22:41:33   (   0.02,-135.42) (  -0.79,-139.07)  416.50                80