Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 7 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/12/2012   10:28:56   (  -0.28,-135.38) (   0.01,-136.73)  153.44                80
 07/13/2012   10:12:51   (  -0.27,-135.39) (  -1.00,-132.20)  363.65                80
 07/14/2012   22:32:08   (   0.29,-135.38) (  -0.19,-137.51)  242.43                80
 07/15/2012   22:16:03   (   0.29,-135.39) (   0.82,-132.98)  274.36                80
 07/17/2012   10:35:12   (  -0.31,-135.41) (   0.31,-138.26)  325.22                80
 07/18/2012   10:19:08   (  -0.30,-135.41) (  -0.70,-133.73)  191.10                80
 07/19/2012   22:38:24   (   0.32,-135.39) (  -0.49,-139.04)  416.28                80
 07/20/2012   22:22:20   (   0.32,-135.38) (   0.52,-134.51)   99.85                80
 07/23/2012   10:25:24   (  -0.33,-135.39) (  -0.34,-135.25)   15.34                80
 07/25/2012   22:25:55   (   0.34,-135.35) (   0.16,-136.03)   78.24                80