Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2012 6 6.  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)
 06/08/2012   16:02:01   (  22.62, 146.32) 06/08/2012   16:05:37    (  26.57, 143.84)  505.73            216
 06/09/2012   03:18:03   (  20.57, 150.27) 06/09/2012   03:18:39    (  20.04, 148.02)  242.39             36
 06/09/2012   15:54:51   (  10.01, 145.98) 06/09/2012   15:51:14    (  10.17, 144.63)  149.11            217
 06/21/2012   02:48:57   (  14.43, 158.62) 06/21/2012   02:51:18    (  13.79, 155.88)  303.57            141
 06/21/2012   15:25:50   (  15.94, 154.22) 06/21/2012   15:23:54    (  16.33, 152.44)  195.89            116
 07/03/2012   14:56:40   (  22.23, 162.63) 07/03/2012   14:56:32    (  22.70, 160.36)  239.68              8
 07/04/2012   03:55:09   (  22.68, 140.66) 07/04/2012   03:51:33    (  25.72, 138.73)  390.73            216