Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2017 12 30.  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)
 12/31/2017   19:06:29   (  49.98, -92.56) 12/31/2017   19:01:25    (  49.64, -94.46)  141.36            304
 12/31/2017   20:45:22   (  49.97,-117.28) 12/31/2017   20:42:53    (  49.53,-119.78)  186.66            149
 01/03/2018   10:12:15   (  26.66,-125.00) 01/03/2018   10:05:45    (  26.73,-125.79)   79.20            390
 01/06/2018   07:18:56   (  49.89, -75.97) 01/06/2018   07:20:22    (  50.34, -78.25)  169.70             86
 01/06/2018   08:57:49   (  49.89,-100.69) 01/06/2018   09:01:50    (  50.45,-103.57)  214.16            241
 01/08/2018   18:17:06   (  49.97, -80.19) 01/08/2018   18:10:37    (  49.68, -81.78)  118.06            389
 01/08/2018   19:55:59   (  49.96,-104.91) 01/08/2018   19:52:05    (  49.57,-107.10)  163.31            234