Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 6 11.  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)
 06/15/2018   07:19:09   (  49.93, -75.97) 06/15/2018   07:20:03    (  50.37, -78.10)  159.11             54
 06/15/2018   08:58:02   (  49.94,-100.69) 06/15/2018   09:01:31    (  50.48,-103.43)  203.55            209
 06/17/2018   18:17:18   (  49.94, -80.15) 06/17/2018   18:10:20    (  49.69, -81.69)  114.17            418
 06/17/2018   19:56:12   (  50.00,-104.89) 06/17/2018   19:51:49    (  49.64,-107.04)  159.32            263
 06/17/2018   21:31:23   (  36.76,-125.00) 06/17/2018   21:29:28    (  36.26,-127.53)  232.95            115
 06/20/2018   09:24:51   (  20.09,-114.21) 06/20/2018   09:16:32    (  20.17,-114.64)   45.02            499