Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 5 10.  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)
 05/14/2018   07:19:20   (  49.92, -76.00) 05/14/2018   07:20:05    (  50.33, -78.16)  160.56             45
 05/14/2018   08:58:13   (  49.92,-100.72) 05/14/2018   09:01:32    (  50.49,-103.46)  205.04            199
 05/16/2018   18:17:29   (  49.98, -80.17) 05/16/2018   18:10:22    (  49.71, -81.73)  115.78            427
 05/16/2018   19:56:22   (  49.98,-104.89) 05/16/2018   19:51:50    (  49.60,-107.06)  161.01            272
 05/16/2018   21:31:32   (  36.69,-124.99) 05/16/2018   21:29:29    (  36.23,-127.55)  235.19            123
 05/19/2018   09:25:02   (  20.05,-114.24) 05/19/2018   09:16:43    (  19.66,-114.80)   73.09            499