Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 6 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/05/2014   10:43:24   (  -0.02,-135.28) (   0.67,-138.34)  349.41                80
 06/06/2014   10:27:21   (  -0.01,-135.32) (  -0.34,-133.81)  171.25                80
 06/07/2014   22:46:40   (   0.03,-135.36) (  -0.79,-139.13)  428.74                80
 06/08/2014   22:30:36   (   0.02,-135.39) (   0.22,-134.59)   91.46                80
 06/11/2014   10:33:42   (  -0.03,-135.48) (  -0.06,-135.33)   17.15                80
 06/13/2014   22:34:17   (   0.04,-135.53) (  -0.11,-136.10)   65.38                80
 06/14/2014   22:18:14   (   0.04,-135.55) (   0.91,-131.57)  453.68                80
 06/16/2014   10:37:24   (  -0.05,-135.59) (   0.21,-136.84)  141.98                80
 06/17/2014   10:21:20   (  -0.04,-135.61) (  -0.81,-132.31)  376.84                80