Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 2 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/11/2016   22:31:53   (   0.06,-135.31) (  -0.11,-135.96)   74.53                80
 02/12/2016   22:10:27   (   0.06,-135.32) (   0.92,-131.43)  442.35                80
 02/14/2016   10:34:54   (  -0.05,-135.36) (   0.22,-136.71)  153.18                80
 02/15/2016   10:13:27   (  -0.05,-135.35) (  -0.76,-132.16)  363.38                80
 02/16/2016   22:38:01   (   0.05,-135.31) (  -0.46,-137.46)  245.77                80
 02/17/2016   22:16:36   (   0.05,-135.30) (   0.58,-132.93)  270.45                80
 02/19/2016   10:38:21   (  -0.04,-135.33) (   0.61,-138.19)  325.93                80
 02/20/2016   10:19:36   (  -0.03,-135.32) (  -0.42,-133.66)  190.16                80
 02/21/2016   22:44:10   (   0.03,-135.27) (  -0.79,-138.95)  419.42                80
 02/22/2016   22:22:44   (   0.03,-135.26) (   0.20,-134.41)   96.39                80