Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 5 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 05/16/2016   10:09:25   (   0.06,-134.92) (  -0.88,-130.64)  487.62                80
 05/17/2016   22:28:41   (  -0.05,-134.86) (  -0.30,-135.95)  124.27                80
 05/18/2016   22:12:36   (  -0.05,-134.82) (   0.72,-131.42)  388.24                80
 05/20/2016   10:31:44   (   0.04,-134.78) (   0.49,-136.68)  217.96                80
 05/21/2016   10:15:39   (   0.04,-134.73) (  -0.53,-132.15)  293.92                80
 05/22/2016   22:34:56   (  -0.03,-134.65) (  -0.65,-137.46)  319.81                80
 05/23/2016   22:18:51   (  -0.03,-134.61) (   0.37,-132.93)  191.87                80
 05/25/2016   10:37:58   (   0.02,-134.55) (   0.83,-138.20)  415.19                80
 05/26/2016   10:21:54   (   0.03,-134.50) (  -0.19,-133.67)   95.92                80
 05/28/2016   22:22:25   (  -0.02,-134.35) (  -0.03,-134.43)    8.80                80