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)
 10/14/2013   10:25:33   (   0.22,-134.95) (   0.25,-135.21)   28.67                80
 10/15/2013   10:09:29   (   0.23,-134.91) (  -0.74,-130.67)  484.08                80
 10/16/2013   22:28:46   (  -0.20,-134.79) (  -0.46,-135.97)  133.90                80
 10/17/2013   22:12:41   (  -0.21,-134.75) (   0.53,-131.43)  378.83                80
 10/19/2013   10:31:51   (   0.18,-134.75) (   0.59,-136.71)  222.12                80
 10/20/2013   10:15:46   (   0.20,-134.71) (  -0.40,-132.17)  290.12                80
 10/21/2013   22:35:04   (  -0.16,-134.58) (  -0.79,-137.47)  329.26                80
 10/22/2013   22:18:59   (  -0.18,-134.53) (   0.20,-132.94)  182.78                80
 10/24/2013   10:38:07   (   0.14,-134.53) (   0.98,-138.20)  418.95                80
 10/25/2013   10:22:03   (   0.16,-134.48) (  -0.02,-133.66)   92.58                80
 10/27/2013   22:22:36   (  -0.14,-134.28) (  -0.17,-134.43)   16.56                80