Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 12 15.  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   07:35:19   (  49.91, -79.50) 12/22/2012   07:37:07    (  50.55, -82.80)  244.97            108
 12/22/2012   09:17:23   (  49.90,-105.03) 12/22/2012   09:18:36    (  50.54,-108.18)  235.11             73
 12/22/2012   17:25:28   (  49.99, -68.36) 12/22/2012   17:23:59    (  49.62, -70.57)  163.99             89
 12/22/2012   19:07:33   (  50.00, -93.88) 12/22/2012   19:05:29    (  49.63, -95.95)  153.88            124
 12/22/2012   20:49:37   (  49.95,-119.38) 12/22/2012   20:46:59    (  49.63,-121.33)  144.01            158
 12/23/2012   07:30:43   (  28.15, -84.22) 12/23/2012   07:24:25    (  28.45, -85.58)  136.76            378
 12/23/2012   09:13:22   (  26.17,-110.28) 12/23/2012   09:06:30    (  26.40,-111.50)  124.51            412