Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2016 11 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/23/2016   10:27:49   (   0.03,-135.37) (  -0.01,-135.30)    8.58                80
 11/25/2016   22:28:21   (  -0.02,-135.36) (  -0.15,-136.08)   81.68                80
 11/26/2016   22:12:16   (  -0.03,-135.36) (   0.82,-131.54)  435.93                80
 11/28/2016   10:31:24   (   0.01,-135.41) (   0.32,-136.82)  160.26                80
 11/29/2016   10:15:19   (   0.02,-135.41) (  -0.65,-132.28)  356.74                80
 11/30/2016   22:34:35   (  -0.00,-135.38) (  -0.52,-137.59)  252.36                80
 12/01/2016   22:18:30   (  -0.01,-135.38) (   0.51,-133.06)  264.33                80
 12/03/2016   10:37:39   (  -0.01,-135.42) (   0.63,-138.34)  333.02                80
 12/04/2016   10:21:33   (   0.00,-135.41) (  -0.34,-133.80)  183.11                80
 12/05/2016   22:40:50   (   0.02,-135.36) (  -0.82,-139.11)  427.36                80