Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 5 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/01/2014   10:20:59   (  -0.00,-135.17) (  -0.67,-132.31)  327.16                80
 06/02/2014   22:40:18   (   0.01,-135.21) (  -0.53,-137.61)  273.23                80
 06/03/2014   22:24:14   (   0.00,-135.24) (   0.48,-133.08)  246.39                80
 06/05/2014   10:43:24   (  -0.02,-135.29) (   0.70,-138.34)  348.86                80
 06/06/2014   10:27:21   (  -0.01,-135.31) (  -0.37,-133.82)  170.45                80
 06/07/2014   22:46:39   (   0.02,-135.34) (  -0.82,-139.12)  431.03                80
 06/08/2014   22:30:36   (   0.02,-135.36) (   0.19,-134.59)   87.79                80
 06/11/2014   10:31:02   (  -0.03,-135.41) (  -0.02,-135.32)    9.84                80
 06/13/2014   22:34:18   (   0.04,-135.43) (  -0.09,-136.10)   76.00                80