Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 10 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/15/2013   10:09:28   (   0.23,-134.91) (  -0.72,-130.66)  483.91                80
 10/16/2013   22:28:46   (  -0.20,-134.79) (  -0.47,-135.96)  134.18                80
 10/17/2013   22:12:41   (  -0.21,-134.75) (   0.52,-131.43)  378.55                80
 10/19/2013   10:31:51   (   0.18,-134.75) (   0.61,-136.71)  222.35                80
 10/20/2013   10:15:46   (   0.20,-134.71) (  -0.38,-132.17)  289.83                80
 10/21/2013   22:35:03   (  -0.16,-134.58) (  -0.80,-137.47)  329.66                80
 10/22/2013   22:18:59   (  -0.18,-134.53) (   0.19,-132.93)  182.34                80
 10/24/2013   10:38:07   (   0.14,-134.52) (   0.99,-138.20)  419.30                80
 10/25/2013   10:22:03   (   0.16,-134.47) (  -0.00,-133.66)   92.23                80
 10/27/2013   22:22:36   (  -0.14,-134.28) (  -0.18,-134.43)   17.11                80