Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 5 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)
 05/06/2014   22:45:54   (  -0.04,-135.21) (  -0.92,-139.13)  446.70                80
 05/07/2014   22:29:50   (  -0.04,-135.19) (   0.07,-134.59)   67.33                80
 05/10/2014   10:30:17   (   0.04,-135.13) (   0.11,-135.33)   22.77                80
 05/11/2014   10:14:15   (   0.04,-135.11) (  -0.94,-130.80)  490.74                80
 05/12/2014   22:33:33   (  -0.04,-135.05) (  -0.28,-136.10)  119.66                80
 05/13/2014   22:17:30   (  -0.04,-135.02) (   0.76,-131.58)  393.28                80
 05/15/2014   10:36:40   (   0.03,-134.98) (   0.45,-136.84)  211.87                80
 05/16/2014   10:20:36   (   0.03,-134.94) (  -0.54,-132.30)  300.42                80
 05/17/2014   22:39:55   (  -0.02,-134.87) (  -0.62,-137.61)  311.93                80
 05/18/2014   22:23:52   (  -0.03,-134.83) (   0.37,-133.08)  200.13                80