Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 10 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)
 10/17/2012   10:12:22   (   0.20,-135.37) (  -0.52,-132.09)  374.16                80
 10/18/2012   22:31:41   (  -0.17,-135.30) (  -0.63,-137.40)  239.31                80
 10/19/2012   22:15:36   (  -0.18,-135.28) (   0.34,-132.87)  275.13                80
 10/21/2012   10:34:47   (   0.15,-135.30) (   0.76,-138.16)  325.15                80
 10/22/2012   10:18:42   (   0.16,-135.28) (  -0.21,-133.62)  188.87                80
 10/23/2012   22:38:00   (  -0.13,-135.20) (  -0.94,-138.94)  425.74                80
 10/24/2012   22:21:56   (  -0.14,-135.18) (   0.03,-134.41)   88.39                80
 10/27/2012   10:25:02   (   0.12,-135.17) (   0.11,-135.16)    2.22                80
 10/29/2012   22:25:36   (  -0.11,-135.06) (  -0.29,-135.94)  100.11                80