Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 3 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/12/2014   10:37:01   (  -0.03,-134.62) (   0.45,-136.65)  232.69                80
 03/13/2014   10:15:37   (  -0.03,-134.57) (  -0.55,-132.12)  278.82                80
 03/14/2014   22:37:33   (   0.03,-134.50) (  -0.66,-137.41)  331.94                80
 03/15/2014   22:21:30   (   0.03,-134.45) (   0.41,-132.89)  179.64                80
 03/17/2014   10:43:17   (  -0.02,-134.37) (   0.82,-138.13)  428.71                80
 03/18/2014   10:21:52   (  -0.03,-134.32) (  -0.19,-133.60)   82.06                80
 03/20/2014   22:25:04   (   0.03,-134.18) (   0.01,-134.36)   20.03                80
 03/21/2014   22:08:59   (   0.03,-134.12) (   0.97,-129.81)  490.64                80
 03/23/2014   10:30:47   (  -0.02,-134.02) (   0.19,-135.07)  119.24                80
 03/24/2014   10:09:22   (  -0.02,-133.95) (  -0.77,-130.52)  390.49                80