Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 12 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2013   10:32:35   (  -0.05,-135.39) (   0.24,-136.74)  153.72                80
 12/07/2013   10:16:32   (  -0.04,-135.38) (  -0.74,-132.21)  360.99                80
 12/08/2013   22:35:51   (   0.07,-135.32) (  -0.42,-137.52)  251.27                80
 12/09/2013   22:19:48   (   0.06,-135.30) (   0.56,-132.99)  263.21                80
 12/11/2013   10:38:59   (  -0.08,-135.31) (   0.58,-138.27)  337.24                80
 12/12/2013   10:22:56   (  -0.07,-135.29) (  -0.41,-133.73)  177.14                80
 12/13/2013   22:42:15   (   0.09,-135.22) (  -0.74,-139.05)  435.48                80
 12/14/2013   22:26:11   (   0.07,-135.20) (   0.24,-134.51)   78.47                80
 12/17/2013   10:26:38   (  -0.08,-135.17) (  -0.05,-135.25)    9.43                80