Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 3 5.  Predictions up to the next  30.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 03/06/2013   14:44:10   (  16.15, 165.58) 03/06/2013   14:45:55    (  18.10, 162.26)  414.17            105
 03/06/2013   16:24:24   (  22.59, 141.66) 03/06/2013   16:25:55    (  23.38, 138.19)  365.52             91
 03/07/2013   03:40:54   (  22.64, 145.10) 03/07/2013   03:38:39    (  22.12, 142.65)  258.21            135
 03/19/2013   03:10:44   (  17.95, 153.53) 03/19/2013   03:12:05    (  17.14, 150.17)  367.63             81
 03/19/2013   15:47:37   (  12.50, 149.18) 03/19/2013   15:44:42    (  13.05, 146.75)  270.41            175
 03/31/2013   15:15:51   (  22.59, 158.92) 03/31/2013   15:16:37    (  23.32, 155.54)  355.54             46
 04/01/2013   02:32:16   (  22.67, 162.38) 04/01/2013   02:29:20    (  22.16, 160.01)  250.08            176