Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 6 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2014   22:18:31   (   0.09,-135.43) (   0.97,-131.54)  444.56                80
 07/02/2014   10:37:40   (  -0.11,-135.42) (   0.19,-136.80)  157.17                80
 07/03/2014   10:21:36   (  -0.10,-135.41) (  -0.78,-132.26)  358.56                80
 07/04/2014   22:40:54   (   0.12,-135.39) (  -0.38,-137.56)  247.64                80
 07/05/2014   22:24:51   (   0.11,-135.38) (   0.65,-133.04)  267.69                80
 07/07/2014   10:44:00   (  -0.13,-135.36) (   0.51,-138.30)  335.29                80
 07/08/2014   10:27:55   (  -0.12,-135.34) (  -0.46,-133.76)  179.45                80
 07/09/2014   22:47:14   (   0.14,-135.30) (  -0.69,-139.07)  428.45                80
 07/10/2014   22:31:09   (   0.14,-135.28) (   0.29,-134.52)   85.82                80
 07/13/2014   10:34:15   (  -0.15,-135.22) (  -0.16,-135.26)    5.18                80