Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 1 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/31/2013   10:25:15   (  -0.08,-134.30) (   0.08,-135.14)   95.83                80
 02/01/2013   10:03:52   (  -0.08,-134.24) (  -0.92,-130.62)  413.84                80
 02/02/2013   22:25:49   (   0.08,-134.11) (  -0.35,-135.91)  205.47                80
 02/03/2013   22:09:45   (   0.07,-134.05) (   0.65,-131.38)  303.98                80
 02/05/2013   10:31:35   (  -0.07,-133.99) (   0.55,-136.65)  303.16                80
 02/06/2013   10:10:11   (  -0.07,-133.93) (  -0.45,-132.12)  205.49                80
 02/07/2013   22:32:09   (   0.06,-133.78) (  -0.77,-137.42)  415.78                80
 02/08/2013   22:16:06   (   0.06,-133.71) (   0.23,-132.89)   92.95                80
 02/11/2013   10:19:13   (  -0.05,-133.59) (  -0.07,-133.65)    6.64                80