Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2012 3 9.  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)
 03/15/2012   09:01:48   (  49.92,-101.85) 03/15/2012   09:07:17    (  50.57,-105.14)  244.93            329
 03/15/2012   18:49:49   (  42.51, -87.63) 03/15/2012   18:51:59    (  42.05, -89.89)  192.88            130
 03/15/2012   20:32:30   (  44.56,-113.91) 03/15/2012   20:34:05    (  44.14,-116.02)  173.87             95
 03/16/2012   07:11:06   (  42.64, -76.58) 03/16/2012   07:08:58    (  42.93, -78.09)  127.46            128
 03/16/2012   08:53:46   (  40.65,-102.80) 03/16/2012   08:51:03    (  40.89,-104.18)  118.78            163
 03/16/2012   18:41:15   (  49.95, -87.95) 03/16/2012   18:35:13    (  49.88, -88.22)   21.12            362
 03/16/2012   20:23:21   (  49.99,-113.48) 03/16/2012   20:16:44    (  49.94,-113.62)   10.91            397