Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 10 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/08/2012   22:21:43   (  -0.23,-135.39) (  -0.00,-134.34)  119.65                80
 10/10/2012   10:40:51   (   0.20,-135.42) (   1.11,-139.62)  477.82                80
 10/11/2012   10:24:44   (   0.21,-135.42) (   0.15,-135.07)   38.74                80
 10/13/2012   22:25:14   (  -0.20,-135.36) (  -0.29,-135.84)   54.46                80
 10/14/2012   22:09:08   (  -0.21,-135.36) (   0.67,-131.30)  461.86                80
 10/16/2012   10:28:15   (   0.18,-135.37) (   0.43,-136.58)  136.85                80
 10/17/2012   10:12:08   (   0.20,-135.36) (  -0.54,-132.03)  378.63                80
 10/18/2012   22:31:24   (  -0.17,-135.29) (  -0.60,-137.34)  233.09                80
 10/19/2012   22:15:17   (  -0.18,-135.27) (   0.38,-132.80)  282.19                80
 10/21/2012   10:34:24   (   0.15,-135.28) (   0.78,-138.07)  317.35                80