Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 8 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/02/2012   10:35:13   (  -0.37,-135.19) (   0.33,-138.28)  352.33                80
 08/03/2012   10:19:08   (  -0.37,-135.17) (  -0.70,-133.75)  161.71                80
 08/04/2012   22:38:23   (   0.38,-135.13) (  -0.53,-139.05)  447.51                80
 08/05/2012   22:22:19   (   0.37,-135.10) (   0.50,-134.52)   66.47                80
 08/08/2012   10:22:42   (  -0.38,-135.05) (  -0.32,-135.26)   24.46                80
 08/09/2012   10:06:37   (  -0.38,-135.02) (  -1.35,-130.73)  488.84                80
 08/10/2012   22:25:53   (   0.39,-134.96) (   0.13,-136.03)  121.75                80
 08/11/2012   22:09:48   (   0.39,-134.93) (   1.16,-131.50)  391.23                80
 08/13/2012   10:28:55   (  -0.40,-134.89) (   0.04,-136.77)  214.36                80
 08/14/2012   10:12:51   (  -0.40,-134.86) (  -1.00,-132.24)  298.11                80