Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 9 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/03/2012   10:34:51   (   0.39,-134.18) (   1.26,-138.07)  444.34                80
 09/04/2012   10:16:05   (   0.39,-134.14) (   0.28,-133.54)   68.18                80
 09/06/2012   22:19:16   (  -0.38,-134.01) (  -0.47,-134.31)   33.72                80
 09/07/2012   22:03:12   (  -0.39,-133.98) (   0.57,-129.78)  478.59                80
 09/09/2012   10:22:19   (   0.37,-133.94) (   0.59,-135.05)  126.41                80
 09/10/2012   10:06:13   (   0.37,-133.89) (  -0.39,-130.51)  385.18                80
 09/11/2012   22:25:29   (  -0.35,-133.79) (  -0.84,-135.81)  230.97                80
 09/12/2012   22:09:24   (  -0.36,-133.74) (   0.21,-131.28)  280.67                80
 09/14/2012   10:28:31   (   0.34,-133.70) (   0.96,-136.56)  324.59                80
 09/15/2012   10:12:26   (   0.35,-133.65) (  -0.03,-132.02)  186.45                80