Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 4 20.  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)
 04/22/2018   19:07:10   (  49.99, -92.57) 04/22/2018   19:01:03    (  49.66, -94.40)  136.48            367
 04/22/2018   20:46:03   (  49.99,-117.29) 04/22/2018   20:42:31    (  49.55,-119.72)  181.77            212
 04/28/2018   07:19:29   (  49.93, -76.01) 04/28/2018   07:20:03    (  50.37, -78.15)  159.62             34
 04/28/2018   08:58:22   (  49.93,-100.73) 04/28/2018   09:01:31    (  50.48,-103.47)  204.10            189
 04/30/2018   18:17:35   (  49.96, -80.17) 04/30/2018   18:10:19    (  49.66, -81.71)  115.50            436
 04/30/2018   19:56:28   (  49.96,-104.89) 04/30/2018   19:51:48    (  49.61,-107.06)  160.75            280