Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 5 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/28/2014   22:33:56   (   0.00,-135.06) (  -0.21,-136.10)  117.66                80
 05/29/2014   22:17:53   (  -0.00,-135.10) (   0.79,-131.57)  402.52                80
 05/31/2014   10:37:02   (  -0.01,-135.15) (   0.40,-136.83)  191.97                80
 06/01/2014   10:21:00   (  -0.00,-135.18) (  -0.67,-132.31)  328.00                80
 06/02/2014   22:40:18   (   0.01,-135.22) (  -0.53,-137.61)  272.06                80
 06/03/2014   22:24:14   (   0.00,-135.25) (   0.48,-133.08)  247.67                80
 06/05/2014   10:43:25   (  -0.02,-135.30) (   0.65,-138.35)  347.58                80
 06/06/2014   10:27:21   (  -0.01,-135.32) (  -0.36,-133.82)  171.81                80
 06/07/2014   22:46:39   (   0.02,-135.36) (  -0.84,-139.12)  429.33                80
 06/08/2014   22:30:36   (   0.02,-135.38) (   0.18,-134.59)   89.63                80