Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 8 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/25/2012   10:03:40   (   0.42,-134.42) (  -0.46,-130.54)  443.34                80
 08/26/2012   22:25:35   (  -0.41,-134.34) (  -0.78,-135.83)  170.82                80
 08/27/2012   22:09:31   (  -0.41,-134.29) (   0.25,-131.30)  340.38                80
 08/29/2012   10:31:18   (   0.40,-134.23) (   0.94,-136.57)  267.16                80
 08/30/2012   10:09:53   (   0.40,-134.18) (  -0.09,-132.04)  243.44                80
 08/31/2012   22:31:50   (  -0.39,-134.08) (  -1.10,-137.35)  372.28                80
 09/01/2012   22:15:44   (  -0.40,-134.03) (  -0.14,-132.81)  138.75                80
 09/03/2012   10:37:33   (   0.38,-133.97) (   1.28,-138.09)  468.28                80
 09/04/2012   10:16:07   (   0.39,-133.91) (   0.31,-133.55)   41.89                80
 09/06/2012   22:19:19   (  -0.38,-133.74) (  -0.49,-134.32)   65.76                80