Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 3 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/14/2014   22:37:33   (   0.03,-134.50) (  -0.64,-137.41)  331.90                80
 03/15/2014   22:21:29   (   0.03,-134.45) (   0.37,-132.88)  179.61                80
 03/17/2014   10:43:17   (  -0.02,-134.37) (   0.80,-138.14)  428.91                80
 03/18/2014   10:21:53   (  -0.03,-134.32) (  -0.22,-133.60)   81.90                80
 03/20/2014   22:25:04   (   0.03,-134.17) (  -0.01,-134.35)   19.90                80
 03/21/2014   22:08:59   (   0.03,-134.12) (   1.01,-129.82)  490.55                80
 03/23/2014   10:30:46   (  -0.02,-134.02) (   0.20,-135.07)  119.44                80
 03/24/2014   10:09:21   (  -0.02,-133.95) (  -0.76,-130.52)  390.27                80
 03/25/2014   22:31:16   (   0.01,-133.85) (  -0.45,-135.81)  223.92                80
 03/26/2014   22:15:12   (   0.01,-133.78) (   0.58,-131.27)  285.91                80