Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 5 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/31/2014   10:37:03   (  -0.01,-135.15) (   0.35,-136.84)  192.53                80
 06/01/2014   10:20:59   (  -0.00,-135.18) (  -0.66,-132.31)  327.36                80
 06/02/2014   22:40:18   (   0.01,-135.21) (  -0.54,-137.61)  273.01                80
 06/03/2014   22:24:14   (   0.00,-135.24) (   0.47,-133.07)  246.65                80
 06/05/2014   10:43:24   (  -0.02,-135.29) (   0.65,-138.35)  348.51                80
 06/06/2014   10:27:21   (  -0.01,-135.31) (  -0.36,-133.82)  170.83                80
 06/07/2014   22:46:39   (   0.02,-135.34) (  -0.83,-139.12)  430.59                80
 06/08/2014   22:30:36   (   0.02,-135.36) (   0.19,-134.59)   88.27                80
 06/11/2014   10:31:02   (  -0.03,-135.41) (  -0.02,-135.32)   10.36                80