Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2015 11 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/05/2015   10:29:46   (   0.09,-135.17) (   0.08,-135.17)    1.95                80
 11/07/2015   22:30:15   (  -0.08,-135.23) (  -0.25,-135.94)   81.59                80
 11/08/2015   22:14:10   (  -0.10,-135.26) (   0.77,-131.41)  438.36                80
 11/10/2015   10:33:16   (   0.07,-135.31) (   0.40,-136.68)  156.62                80
 11/11/2015   10:17:11   (   0.08,-135.34) (  -0.61,-132.15)  362.63                80
 11/12/2015   22:36:26   (  -0.06,-135.35) (  -0.56,-137.46)  241.45                80
 11/13/2015   22:20:21   (  -0.07,-135.37) (   0.46,-132.93)  277.60                80
 11/15/2015   10:39:28   (   0.04,-135.42) (   0.65,-138.21)  318.28                80
 11/16/2015   10:23:21   (   0.06,-135.43) (  -0.31,-133.67)  199.95                80
 11/17/2015   22:42:37   (  -0.03,-135.42) (  -0.85,-138.98)  406.13                80
 11/18/2015   22:26:31   (  -0.04,-135.43) (   0.17,-134.45)  111.99                80