Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 9 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)
 09/06/2014   22:42:10   (  -0.36,-134.41) (  -1.01,-137.41)  341.00                80
 09/07/2014   22:26:07   (  -0.36,-134.35) (  -0.03,-132.87)  167.88                80
 09/09/2014   10:45:17   (   0.34,-134.20) (   1.21,-138.14)  449.42                80
 09/10/2014   10:29:13   (   0.35,-134.12) (   0.23,-133.61)   58.87                80
 09/12/2014   22:29:49   (  -0.34,-133.98) (  -0.42,-134.38)   45.80                80
 09/13/2014   22:13:46   (  -0.35,-133.91) (   0.56,-129.85)  462.51                80
 09/15/2014   10:32:56   (   0.33,-133.75) (   0.61,-135.12)  155.53                80
 09/16/2014   10:16:53   (   0.34,-133.67) (  -0.37,-130.58)  352.07                80
 09/17/2014   22:36:11   (  -0.31,-133.58) (  -0.86,-135.88)  262.83                80
 09/18/2014   22:20:08   (  -0.32,-133.50) (   0.18,-131.36)  244.99                80