Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 6 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/17/2014   10:21:19   (  -0.04,-135.43) (  -0.72,-132.29)  357.07                80
 06/18/2014   22:40:37   (   0.05,-135.43) (  -0.45,-137.59)  247.51                80
 06/19/2014   22:24:34   (   0.05,-135.43) (   0.57,-133.06)  269.50                80
 06/21/2014   10:43:43   (  -0.06,-135.44) (   0.60,-138.33)  329.84                80
 06/22/2014   10:27:40   (  -0.06,-135.44) (  -0.42,-133.80)  186.82                80
 06/23/2014   22:46:58   (   0.08,-135.43) (  -0.75,-139.10)  418.70                80
 06/24/2014   22:30:55   (   0.07,-135.42) (   0.27,-134.57)   97.63                80
 06/27/2014   10:34:00   (  -0.08,-135.42) (  -0.12,-135.30)   13.42                80
 06/29/2014   22:34:34   (   0.09,-135.39) (  -0.08,-136.06)   77.09                80