Simultaneous Nadir Overpasses (SNOs) near US between NOAA-19 and NPP
TLE Epoch: 2013 7 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)
 07/21/2013   19:51:17   (  50.00,-103.64) 07/21/2013   19:51:17    (  49.40,-106.91)  244.12              0
 07/22/2013   08:12:16   (  35.57, -91.79) 07/22/2013   08:08:05    (  36.07, -94.41)  243.44            251
 07/22/2013   09:54:56   (  33.52,-117.93) 07/22/2013   09:50:10    (  34.02,-120.41)  235.94            286
 07/22/2013   17:58:14   (  50.00, -75.38) 07/22/2013   17:50:49    (  49.71, -76.90)  114.26            445
 07/22/2013   19:40:18   (  49.97,-100.88) 07/22/2013   19:32:19    (  49.72,-102.28)  104.36            479