Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 12 16.  Predictions up to the next  10.0 days:

Date(NOAA-19)     Time(NOAA-19)   NOAA-19 Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 12/22/2012   07:35:17   (  49.94, -79.48) 12/22/2012   07:37:04    (  50.62, -82.76)  244.64            107
 12/22/2012   09:17:22   (  49.93,-105.01) 12/22/2012   09:18:35    (  50.55,-108.16)  234.80             73
 12/22/2012   17:25:27   (  49.96, -68.34) 12/22/2012   17:23:57    (  49.56, -70.54)  163.99             90
 12/22/2012   19:07:32   (  49.97, -93.87) 12/22/2012   19:05:28    (  49.62, -95.94)  153.87            124
 12/22/2012   20:49:37   (  49.98,-119.39) 12/22/2012   20:46:58    (  49.63,-121.32)  143.74            159
 12/23/2012   07:30:43   (  28.12, -84.23) 12/23/2012   07:24:25    (  28.39, -85.59)  136.56            378
 12/23/2012   09:13:23   (  26.07,-110.30) 12/23/2012   09:06:30    (  26.33,-111.51)  124.28            413