Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 10 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 10/26/2013   22:41:21   (  -0.12,-134.72) (  -1.08,-138.98)  485.55                80
 10/27/2013   22:25:17   (  -0.14,-134.76) (  -0.08,-134.44)   35.92                80
 10/30/2013   10:25:42   (   0.12,-134.93) (   0.19,-135.19)   29.55                80
 10/31/2013   10:09:37   (   0.14,-134.97) (  -0.82,-130.65)  491.40                80
 11/01/2013   22:28:54   (  -0.10,-134.95) (  -0.34,-135.96)  115.36                80
 11/02/2013   22:12:50   (  -0.12,-134.98) (   0.66,-131.42)  405.21                80
 11/04/2013   10:31:59   (   0.09,-135.10) (   0.44,-136.70)  183.02                80
 11/05/2013   10:15:55   (   0.11,-135.12) (  -0.56,-132.17)  336.88                80
 11/06/2013   22:35:12   (  -0.07,-135.09) (  -0.58,-137.48)  271.64                80
 11/07/2013   22:19:07   (  -0.09,-135.11) (   0.37,-132.93)  247.86                80