Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 8 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/31/2012   22:31:48   (  -0.40,-134.24) (  -1.10,-137.34)  353.92                80
 09/01/2012   22:15:44   (  -0.40,-134.20) (  -0.06,-132.81)  159.27                80
 09/03/2012   10:34:50   (   0.39,-134.18) (   1.28,-138.07)  444.44                80
 09/04/2012   10:18:46   (   0.39,-134.14) (   0.24,-133.55)   68.12                80
 09/06/2012   22:19:16   (  -0.38,-134.01) (  -0.47,-134.31)   33.65                80
 09/07/2012   22:03:10   (  -0.39,-133.98) (   0.53,-129.77)  478.71                80
 09/09/2012   10:22:17   (   0.37,-133.94) (   0.63,-135.04)  126.16                80
 09/10/2012   10:06:12   (   0.37,-133.89) (  -0.37,-130.51)  385.47                80
 09/11/2012   22:25:28   (  -0.35,-133.79) (  -0.78,-135.82)  230.53                80
 09/12/2012   22:09:23   (  -0.36,-133.74) (   0.22,-131.28)  281.24                80
 09/14/2012   10:28:29   (   0.34,-133.70) (   0.98,-136.54)  323.86                80