Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 2 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/07/2013   22:34:52   (   0.06,-134.79) (  -0.54,-137.47)  305.27                80
 02/08/2013   22:16:09   (   0.06,-134.83) (   0.47,-132.94)  215.14                80
 02/10/2013   10:37:59   (  -0.06,-134.94) (   0.65,-138.23)  374.54                80
 02/11/2013   10:16:35   (  -0.06,-134.97) (  -0.36,-133.70)  145.61                80
 02/12/2013   22:41:14   (   0.05,-134.99) (  -0.83,-139.01)  457.86                80
 02/13/2013   22:19:50   (   0.05,-135.03) (   0.18,-134.48)   62.14                80
 02/16/2013   10:25:37   (  -0.05,-135.16) (  -0.06,-135.24)    9.05                80
 02/18/2013   22:28:51   (   0.04,-135.19) (  -0.17,-136.01)   93.71                80
 02/19/2013   22:07:28   (   0.04,-135.22) (   0.91,-131.50)  425.55                80