Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 12 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2014   22:35:54   (   0.05,-135.32) (  -0.11,-136.06)   85.06                80
 12/07/2014   22:19:48   (   0.03,-135.33) (   0.85,-131.52)  433.35                80
 12/09/2014   10:38:55   (  -0.06,-135.39) (   0.26,-136.81)  162.12                80
 12/10/2014   10:22:49   (  -0.04,-135.40) (  -0.76,-132.28)  355.76                80
 12/11/2014   22:42:04   (   0.07,-135.38) (  -0.43,-137.58)  251.56                80
 12/12/2014   22:25:58   (   0.06,-135.39) (   0.60,-133.06)  266.35                80
 12/14/2014   10:45:05   (  -0.08,-135.44) (   0.57,-138.33)  329.26                80
 12/15/2014   10:28:58   (  -0.06,-135.45) (  -0.41,-133.79)  188.11                80
 12/16/2014   22:48:13   (   0.08,-135.41) (  -0.72,-139.11)  420.61                80
 12/17/2014   22:32:07   (   0.07,-135.42) (   0.26,-134.57)   96.58                80