Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 3 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/09/2012   22:17:11   (  -0.05,-135.39) (   0.49,-133.02)  270.31                80
 03/11/2012   10:36:19   (   0.05,-135.36) (   0.67,-138.30)  334.34                80
 03/12/2012   10:20:14   (   0.05,-135.34) (  -0.29,-133.76)  180.24                80
 03/13/2012   22:39:30   (  -0.05,-135.32) (  -0.87,-139.07)  426.08                80
 03/14/2012   22:23:25   (  -0.05,-135.31) (   0.10,-134.53)   88.18                80
 03/17/2012   10:23:48   (   0.06,-135.24) (   0.07,-135.27)    3.64                80
 03/19/2012   22:26:58   (  -0.06,-135.20) (  -0.24,-136.05)   96.28                80
 03/20/2012   22:10:53   (  -0.06,-135.18) (   0.74,-131.51)  417.70                80
 03/22/2012   10:30:01   (   0.06,-135.13) (   0.40,-136.79)  188.49                80
 03/23/2012   10:13:56   (   0.06,-135.10) (  -0.59,-132.25)  325.21                80