Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 2 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)
 02/06/2015   10:33:34   (  -0.08,-135.15) (  -0.08,-135.16)    1.09                80
 02/08/2015   22:34:05   (   0.07,-135.22) (  -0.11,-135.94)   82.63                80
 02/09/2015   22:18:00   (   0.07,-135.24) (   0.94,-131.42)  436.07                80
 02/11/2015   10:39:47   (  -0.07,-135.26) (   0.27,-136.68)  162.22                80
 02/12/2015   10:18:22   (  -0.07,-135.28) (  -0.78,-132.16)  355.53                80
 02/13/2015   22:40:17   (   0.06,-135.30) (  -0.44,-137.46)  246.84                80
 02/14/2015   22:24:13   (   0.06,-135.31) (   0.61,-132.94)  270.93                80
 02/16/2015   10:45:59   (  -0.05,-135.33) (   0.59,-138.21)  327.95                80
 02/17/2015   10:24:34   (  -0.05,-135.34) (  -0.41,-133.68)  188.90                80
 02/18/2015   22:46:30   (   0.04,-135.34) (  -0.74,-138.99)  415.42                80