Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 1 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)
 01/08/2016   10:26:34   (  -0.08,-134.51) (   0.09,-135.23)   82.03                80
 01/09/2016   10:10:28   (  -0.07,-134.55) (  -0.93,-130.69)  439.76                80
 01/10/2016   22:29:44   (   0.08,-134.57) (  -0.23,-136.00)  162.99                80
 01/11/2016   22:13:38   (   0.08,-134.61) (   0.78,-131.47)  358.42                80
 01/13/2016   10:32:45   (  -0.09,-134.73) (   0.36,-136.75)  229.52                80
 01/14/2016   10:16:40   (  -0.08,-134.77) (  -0.66,-132.21)  291.47                80
 01/15/2016   22:35:55   (   0.09,-134.77) (  -0.51,-137.52)  312.48                80
 01/16/2016   22:19:50   (   0.08,-134.81) (   0.51,-132.99)  208.24                80
 01/18/2016   10:38:56   (  -0.09,-134.92) (   0.68,-138.25)  380.58                80
 01/19/2016   10:22:51   (  -0.08,-134.95) (  -0.33,-133.72)  139.77                80
 01/20/2016   22:42:06   (   0.08,-134.95) (  -0.83,-139.03)  465.28                80
 01/21/2016   22:26:00   (   0.08,-134.98) (   0.19,-134.50)   54.74                80