Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 1 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/25/2013   10:37:38   (  -0.08,-134.60) (   0.69,-138.16)  404.34                80
 01/26/2013   10:16:13   (  -0.08,-134.55) (  -0.26,-133.61)  106.03                80
 01/28/2013   22:19:28   (   0.08,-134.38) (   0.07,-134.40)    1.46                80
 01/31/2013   10:25:14   (  -0.08,-134.28) (   0.09,-135.14)   97.65                80
 02/01/2013   10:03:50   (  -0.08,-134.22) (  -0.86,-130.60)  411.83                80
 02/02/2013   22:25:48   (   0.08,-134.09) (  -0.32,-135.91)  207.73                80
 02/03/2013   22:09:44   (   0.07,-134.03) (   0.69,-131.39)  301.61                80
 02/05/2013   10:31:33   (  -0.07,-133.97) (   0.54,-136.65)  305.62                80
 02/06/2013   10:10:09   (  -0.07,-133.90) (  -0.48,-132.12)  202.94                80