Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 12 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/06/2012   22:15:51   (   0.04,-135.32) (   0.55,-132.95)  269.77                80
 12/08/2012   10:35:00   (  -0.07,-135.36) (   0.60,-138.22)  327.39                80
 12/09/2012   10:18:55   (  -0.05,-135.37) (  -0.44,-133.70)  190.88                80
 12/10/2012   22:38:12   (   0.07,-135.37) (  -0.72,-139.00)  413.10                80
 12/11/2012   22:22:06   (   0.06,-135.38) (   0.26,-134.46)  104.99                80
 12/13/2012   10:41:14   (  -0.07,-135.41) (   0.87,-139.74)  492.85                80
 12/14/2012   10:25:09   (  -0.06,-135.42) (  -0.11,-135.20)   24.46                80
 12/16/2012   22:25:40   (   0.07,-135.41) (  -0.05,-135.97)   63.76                80
 12/17/2012   22:09:34   (   0.06,-135.42) (   0.94,-131.43)  453.71                80
 12/19/2012   10:28:43   (  -0.08,-135.44) (   0.18,-136.71)  144.39                80