Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2014   22:19:28   (   0.07,-135.34) (   0.94,-131.54)  433.17                80
 12/25/2014   10:38:33   (  -0.09,-135.35) (   0.24,-136.81)  166.08                80
 12/26/2014   10:22:27   (  -0.08,-135.34) (  -0.76,-132.27)  349.07                80
 12/27/2014   22:41:41   (   0.10,-135.28) (  -0.39,-137.58)  262.28                80
 12/28/2014   22:25:34   (   0.09,-135.26) (   0.55,-133.03)  252.94                80
 12/30/2014   10:44:40   (  -0.10,-135.27) (   0.56,-138.32)  346.42                80
 12/31/2014   10:28:32   (  -0.09,-135.25) (  -0.40,-133.77)  168.29                80
 01/01/2015   22:47:47   (   0.10,-135.17) (  -0.74,-139.08)  444.29                80
 01/02/2015   22:31:39   (   0.09,-135.15) (   0.21,-134.53)   70.36                80
 01/05/2015   10:34:38   (  -0.09,-135.13) (  -0.08,-135.27)   15.24                80