Simultaneous Nadir Overpasses (SNOs) between NOAA-19 and NPP over region 
TLE Epoch: 2012 12 7.  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)
 12/09/2012   15:10:42   (  22.60, 159.66) 12/09/2012   15:14:17    (  27.02, 156.67)  576.82            215
 12/10/2012   02:26:17   (  19.65, 163.88) 12/10/2012   02:27:09    (  19.01, 160.96)  313.98             52
 12/10/2012   04:06:43   (  13.89, 139.75) 12/10/2012   04:07:01    (  13.26, 136.95)  310.39             18
 12/10/2012   15:03:17   (  10.55, 159.47) 12/10/2012   14:59:49    (  10.96, 157.51)  218.97            208
 12/22/2012   03:37:49   (  11.86, 147.35) 12/22/2012   03:40:55    (  11.03, 143.84)  393.82            186
 12/22/2012   16:14:44   (  18.53, 142.98) 12/22/2012   16:13:33    (  19.05, 140.41)  276.61             71
 12/23/2012   03:30:03   (  22.65, 147.45) 12/23/2012   03:26:26    (  27.04, 144.69)  561.96            217
 01/03/2013   15:45:10   (  22.59, 151.14) 01/03/2013   15:46:48    (  23.31, 147.85)  345.74             98
 01/04/2013   03:01:41   (  22.65, 154.58) 01/04/2013   02:59:30    (  22.16, 152.34)  237.43            131