Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 2 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/09/2016   10:26:04   (  -0.06,-135.35) (  -0.08,-135.20)   16.39                80
 02/11/2016   22:31:53   (   0.06,-135.31) (  -0.10,-135.96)   74.45                80
 02/12/2016   22:10:27   (   0.06,-135.31) (   0.93,-131.43)  442.32                80
 02/14/2016   10:34:53   (  -0.05,-135.35) (   0.27,-136.69)  153.64                80
 02/15/2016   10:13:27   (  -0.05,-135.35) (  -0.76,-132.16)  362.82                80
 02/16/2016   22:38:01   (   0.05,-135.30) (  -0.45,-137.46)  246.15                80
 02/17/2016   22:16:36   (   0.04,-135.30) (   0.59,-132.93)  269.97                80
 02/19/2016   10:38:21   (  -0.04,-135.32) (   0.61,-138.19)  326.87                80
 02/20/2016   10:19:36   (  -0.03,-135.31) (  -0.43,-133.66)  189.14                80
 02/21/2016   22:44:10   (   0.03,-135.26) (  -0.78,-138.96)  420.28                80