Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2012 2 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/06/2012   22:14:23   (  -0.01,-134.99) (   0.48,-132.91)  237.61                80
 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)  162.57                80
 02/10/2012   22:42:05   (  -0.00,-135.11) (  -0.85,-138.97)  440.00                80
 02/11/2012   22:20:40   (  -0.00,-135.13) (   0.16,-134.44)   78.70                80
 02/14/2012   10:26:24   (  -0.00,-135.20) (  -0.01,-135.19)    1.33                80
 02/16/2012   22:29:36   (   0.01,-135.23) (  -0.17,-135.97)   84.79                80
 02/17/2012   22:08:11   (   0.01,-135.25) (   0.84,-131.44)  432.99                80
 02/19/2012   10:30:00   (  -0.02,-135.29) (   0.31,-136.72)  163.88                80