Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 6 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)
 06/15/2018   07:19:10   (  49.91, -75.98) 06/15/2018   07:20:04    (  50.35, -78.11)  159.21             54
 06/15/2018   08:58:03   (  49.92,-100.70) 06/15/2018   09:01:32    (  50.46,-103.44)  203.67            209
 06/17/2018   18:17:18   (  49.96, -80.16) 06/17/2018   18:10:20    (  49.71, -81.70)  114.17            418
 06/17/2018   19:56:11   (  49.96,-104.88) 06/17/2018   19:51:48    (  49.60,-107.02)  159.40            263
 06/17/2018   21:31:22   (  36.72,-124.99) 06/17/2018   21:29:27    (  36.22,-127.52)  233.03            115
 06/20/2018   09:24:51   (  20.07,-114.22) 06/20/2018   09:16:32    (  20.15,-114.64)   45.05            499