Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 1 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)
 01/10/2016   22:29:44   (   0.08,-134.57) (  -0.22,-136.00)  162.85                80
 01/11/2016   22:13:38   (   0.08,-134.61) (   0.79,-131.47)  358.68                80
 01/13/2016   10:32:46   (  -0.09,-134.73) (   0.34,-136.75)  229.03                80
 01/14/2016   10:16:40   (  -0.08,-134.77) (  -0.67,-132.22)  292.09                80
 01/15/2016   22:35:54   (   0.09,-134.78) (  -0.55,-137.51)  311.73                80
 01/16/2016   22:19:49   (   0.08,-134.82) (   0.47,-132.98)  209.12                80
 01/18/2016   10:38:56   (  -0.09,-134.93) (   0.66,-138.26)  379.44                80
 01/19/2016   10:22:51   (  -0.08,-134.96) (  -0.36,-133.73)  141.01                80
 01/20/2016   22:42:05   (   0.08,-134.96) (  -0.85,-139.02)  463.87                80
 01/21/2016   22:26:00   (   0.08,-134.99) (   0.17,-134.49)   56.32                80
 01/24/2016   10:29:01   (  -0.08,-135.12) (  -0.07,-135.24)   13.31                80