Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 6 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)
 06/15/2012   10:35:19   (  -0.15,-135.06) (   0.57,-138.21)  360.00                80
 06/16/2012   10:19:13   (  -0.14,-135.02) (  -0.47,-133.68)  153.66                80
 06/17/2012   22:38:28   (   0.17,-134.98) (  -0.73,-138.98)  456.20                80
 06/18/2012   22:22:21   (   0.16,-134.94) (   0.25,-134.44)   57.32                80
 06/21/2012   10:22:41   (  -0.17,-134.85) (  -0.09,-135.16)   36.18                80
 06/22/2012   10:06:34   (  -0.16,-134.81) (  -1.07,-130.62)  476.63                80
 06/23/2012   22:25:49   (   0.19,-134.75) (  -0.10,-135.92)  134.57                80
 06/24/2012   22:09:43   (   0.17,-134.71) (   0.94,-131.39)  378.23                80
 06/26/2012   10:28:49   (  -0.20,-134.64) (   0.27,-136.65)  229.21                80
 06/27/2012   10:12:42   (  -0.19,-134.60) (  -0.72,-132.11)  282.85                80