Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2015 4 21.  Predictions up to the next  10.0 days:

Date(AQUA)     Time(AQUA)   AQUA Lat/Lon   Date(NPP)     Time(NPP)    NPP Lat/Lon    Distance (km)   Time Diff(sec)
 04/22/2015   18:18:06   (  49.99, -80.25) 04/22/2015   18:15:28    (  49.73, -81.62)  103.11            158
 04/22/2015   19:56:59   (  49.98,-104.96) 04/22/2015   19:56:56    (  49.62,-106.95)  148.29              3
 04/22/2015   21:29:44   (  27.98,-122.69) 04/22/2015   21:32:05    (  27.49,-124.98)  231.57            141
 04/25/2015   07:46:47   (  20.02, -89.59) 04/25/2015   07:40:09    (  19.95, -89.30)   32.02            398
 04/25/2015   09:21:30   (  35.06,-110.49) 04/25/2015   09:17:20    (  35.09,-110.62)   12.24            250
 04/28/2015   06:31:23   (  46.59, -65.02) 04/28/2015   06:35:15    (  46.94, -66.88)  146.54            232
 04/28/2015   08:09:20   (  49.91, -88.42) 04/28/2015   08:15:45    (  50.39, -90.78)  176.22            385
 04/30/2015   19:07:27   (  50.00, -92.59) 04/30/2015   19:05:58    (  49.73, -94.28)  124.53             89
 04/30/2015   20:45:17   (  46.26,-115.83) 04/30/2015   20:46:20    (  45.82,-118.03)  176.90             63