Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2013 1 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 01/26/2013   10:16:14   (  -0.08,-134.55) (  -0.27,-133.62)  105.71                80
 01/28/2013   22:19:29   (   0.08,-134.38) (   0.06,-134.39)    2.38                80
 01/31/2013   10:25:16   (  -0.08,-134.28) (   0.09,-135.15)   98.51                80
 02/01/2013   10:03:52   (  -0.08,-134.22) (  -0.91,-130.62)  410.82                80
 02/02/2013   22:25:50   (   0.08,-134.09) (  -0.31,-135.92)  208.79                80
 02/03/2013   22:09:47   (   0.07,-134.02) (   0.69,-131.39)  300.37                80
 02/05/2013   10:31:36   (  -0.07,-133.96) (   0.53,-136.66)  307.41                80
 02/06/2013   10:10:13   (  -0.07,-133.89) (  -0.46,-132.13)  200.89                80
 02/07/2013   22:32:11   (   0.06,-133.74) (  -0.76,-137.44)  420.68                80
 02/08/2013   22:16:08   (   0.06,-133.67) (   0.24,-132.91)   87.74                80