Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 1 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/27/2016   22:13:25   (   0.08,-135.14) (   0.91,-131.47)  419.06                80
 01/29/2016   10:35:11   (  -0.08,-135.23) (   0.25,-136.74)  171.99                80
 01/30/2016   10:13:46   (  -0.08,-135.25) (  -0.77,-132.21)  346.90                80
 01/31/2016   22:35:40   (   0.07,-135.22) (  -0.45,-137.50)  259.82                80
 02/01/2016   22:19:35   (   0.07,-135.24) (   0.58,-132.97)  258.76                80
 02/03/2016   10:41:21   (  -0.07,-135.32) (   0.58,-138.24)  333.27                80
 02/04/2016   10:19:55   (  -0.07,-135.33) (  -0.45,-133.71)  184.82                80
 02/05/2016   22:41:50   (   0.06,-135.29) (  -0.76,-139.01)  423.36                80
 02/06/2016   22:25:44   (   0.06,-135.30) (   0.27,-134.48)   94.33                80
 02/08/2016   10:47:29   (  -0.06,-135.36) (   0.94,-139.73)  498.93                80
 02/09/2016   10:26:04   (  -0.05,-135.36) (  -0.09,-135.20)   18.29                80