Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 3 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/12/2016   10:25:29   (  -0.00,-134.74) (   0.06,-135.09)   39.67                80
 03/13/2016   10:09:24   (  -0.00,-134.70) (  -0.95,-130.56)  472.61                80
 03/14/2016   22:31:18   (  -0.00,-134.62) (  -0.29,-135.85)  140.75                80
 03/15/2016   22:09:52   (   0.00,-134.58) (   0.73,-131.32)  371.15                80
 03/17/2016   10:31:39   (   0.00,-134.53) (   0.45,-136.58)  234.01                80
 03/18/2016   10:15:33   (   0.00,-134.48) (  -0.57,-132.05)  277.79                80
 03/19/2016   22:37:28   (  -0.01,-134.39) (  -0.66,-137.34)  336.03                80
 03/20/2016   22:16:02   (  -0.00,-134.35) (   0.36,-132.81)  175.52                80
 03/22/2016   10:37:47   (   0.01,-134.29) (   0.88,-138.06)  430.37                80
 03/23/2016   10:21:42   (   0.00,-134.25) (  -0.14,-133.53)   81.03                80
 03/25/2016   22:24:51   (  -0.00,-134.10) (  -0.05,-134.29)   22.29                80