Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 4 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)
 04/05/2012   22:10:48   (  -0.07,-134.56) (   0.61,-131.50)  349.40                80
 04/07/2012   10:29:56   (   0.06,-134.46) (   0.57,-136.77)  262.86                80
 04/08/2012   10:13:50   (   0.06,-134.40) (  -0.42,-132.23)  247.54                80
 04/09/2012   22:33:05   (  -0.05,-134.34) (  -0.77,-137.53)  364.36                80
 04/10/2012   22:17:00   (  -0.06,-134.28) (   0.22,-133.00)  145.83                80
 04/12/2012   10:36:07   (   0.05,-134.16) (   0.94,-138.27)  467.25                80
 04/13/2012   10:20:01   (   0.05,-134.10) (  -0.00,-133.72)   42.79                80
 04/15/2012   22:20:31   (  -0.05,-133.96) (  -0.17,-134.49)   59.98                80
 04/16/2012   22:04:25   (  -0.06,-133.90) (   0.84,-129.96)  450.00                80
 04/18/2012   10:23:31   (   0.05,-133.79) (   0.36,-135.22)  163.31                80