Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 2 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/08/2012   10:36:12   (   0.00,-135.05) (   0.69,-138.18)  356.62                80
 02/09/2012   10:20:07   (   0.00,-135.08) (  -0.31,-133.65)  162.55                80
 02/10/2012   22:42:05   (  -0.00,-135.11) (  -0.86,-138.97)  440.06                80
 02/11/2012   22:20:40   (  -0.00,-135.13) (   0.15,-134.44)   78.59                80
 02/14/2012   10:26:24   (  -0.00,-135.20) (   0.02,-135.19)    3.31                80
 02/16/2012   22:29:37   (   0.01,-135.23) (  -0.17,-135.98)   85.17                80
 02/17/2012   22:08:12   (   0.01,-135.25) (   0.84,-131.45)  432.53                80
 02/19/2012   10:30:01   (  -0.02,-135.29) (   0.33,-136.72)  164.49                80
 02/20/2012   10:13:57   (  -0.02,-135.30) (  -0.74,-132.21)  353.30                80