Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2013 1 26.  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)
 01/28/2013   03:43:05   (  10.07, 146.49) 01/28/2013   03:46:41    (   8.42, 142.85)  440.43            216
 01/28/2013   14:40:18   (  11.47, 165.58) 01/28/2013   14:40:32    (  12.12, 162.57)  336.61             14
 01/28/2013   16:19:30   (  21.56, 142.50) 01/28/2013   16:19:11    (  22.16, 139.59)  307.53             19
 01/29/2013   03:35:48   (  22.67, 146.18) 01/29/2013   03:32:11    (  24.26, 143.82)  298.41            217
 02/09/2013   15:50:30   (  22.62, 149.99) 02/09/2013   15:53:44    (  23.46, 146.20)  399.64            194
 02/10/2013   03:07:05   (  22.65, 153.41) 02/10/2013   03:06:29    (  22.08, 150.65)  291.01             36
 02/10/2013   15:43:12   (  10.04, 149.69) 02/10/2013   15:39:35    (   6.39, 146.92)  507.32            217
 02/22/2013   02:35:06   (  11.64, 163.35) 02/22/2013   02:38:14    (  10.81, 159.61)  418.35            188
 02/22/2013   15:11:48   (  19.07, 159.09) 02/22/2013   15:10:46    (  19.69, 156.28)  302.71             62