Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2014 1 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/12/2014   10:39:41   (  -0.12,-134.92) (   0.61,-138.29)  382.97                80
 01/13/2014   10:23:38   (  -0.12,-134.96) (  -0.41,-133.76)  137.49                80
 01/14/2014   22:42:56   (   0.12,-135.01) (  -0.76,-139.06)  460.79                80
 01/15/2014   22:26:52   (   0.12,-135.05) (   0.21,-134.52)   59.54                80
 01/18/2014   10:27:18   (  -0.12,-135.12) (  -0.07,-135.26)   16.18                80
 01/20/2014   22:30:32   (   0.12,-135.20) (  -0.07,-136.04)   95.70                80
 01/21/2014   22:14:29   (   0.12,-135.23) (   0.96,-131.51)  423.78                80
 01/23/2014   10:36:17   (  -0.12,-135.26) (   0.24,-136.77)  172.68                80
 01/24/2014   10:14:54   (  -0.12,-135.28) (  -0.79,-132.24)  346.23                80