Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 5 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/06/2012   22:26:40   (  -0.01,-135.28) (  -0.19,-136.06)   88.27                80
 05/07/2012   22:10:34   (  -0.02,-135.30) (   0.82,-131.52)  430.13                80
 05/09/2012   10:29:42   (   0.00,-135.32) (   0.31,-136.80)  168.42                80
 05/10/2012   10:13:36   (   0.01,-135.33) (  -0.69,-132.26)  349.77                80
 05/11/2012   22:32:52   (   0.00,-135.35) (  -0.50,-137.57)  252.94                80
 05/12/2012   22:16:46   (  -0.01,-135.36) (   0.51,-133.03)  265.23                80
 05/14/2012   10:35:53   (  -0.01,-135.38) (   0.62,-138.31)  333.58                80
 05/15/2012   10:19:48   (  -0.00,-135.39) (  -0.39,-133.77)  184.33                80
 05/16/2012   22:39:03   (   0.03,-135.40) (  -0.81,-139.08)  419.20                80
 05/17/2012   22:22:58   (   0.02,-135.41) (   0.20,-134.54)   98.37                80