Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 10 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/01/2013   22:28:54   (  -0.10,-134.95) (  -0.35,-135.96)  114.85                80
 11/02/2013   22:12:50   (  -0.12,-134.98) (   0.66,-131.42)  405.79                80
 11/04/2013   10:31:59   (   0.09,-135.10) (   0.45,-136.70)  182.57                80
 11/05/2013   10:15:54   (   0.11,-135.12) (  -0.57,-132.17)  337.42                80
 11/06/2013   22:35:11   (  -0.07,-135.09) (  -0.63,-137.46)  270.76                80
 11/07/2013   22:19:06   (  -0.09,-135.12) (   0.38,-132.93)  248.81                80
 11/09/2013   10:38:16   (   0.05,-135.22) (   0.72,-138.21)  340.88                80
 11/10/2013   10:22:11   (   0.07,-135.24) (  -0.30,-133.68)  178.48                80
 11/11/2013   22:41:27   (  -0.03,-135.20) (  -0.88,-138.97)  430.30                80
 11/12/2013   22:25:23   (  -0.05,-135.22) (   0.14,-134.44)   88.93                80