Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 12 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 12/04/2012   10:12:41   (  -0.03,-135.28) (  -0.74,-132.18)  353.41                80
 12/05/2012   22:31:57   (   0.05,-135.30) (  -0.43,-137.49)  249.34                80
 12/06/2012   22:15:52   (   0.04,-135.32) (   0.59,-132.96)  269.79                80
 12/08/2012   10:35:01   (  -0.06,-135.37) (   0.57,-138.23)  326.32                80
 12/09/2012   10:18:56   (  -0.05,-135.38) (  -0.45,-133.70)  192.03                80
 12/10/2012   22:38:13   (   0.07,-135.38) (  -0.73,-139.01)  412.80                80
 12/11/2012   22:22:07   (   0.05,-135.39) (   0.24,-134.46)  105.29                80
 12/13/2012   10:41:16   (  -0.07,-135.43) (   0.87,-139.75)  491.82                80
 12/14/2012   10:24:45   (  -0.06,-135.43) (  -0.09,-135.21)   25.58                54
 12/16/2012   22:25:43   (   0.07,-135.42) (  -0.07,-135.98)   63.65                80
 12/17/2012   22:09:38   (   0.06,-135.43) (   0.95,-131.45)  453.71                80