Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2017 12 18.  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)
 12/21/2017   07:18:48   (  49.89, -75.97) 12/21/2017   07:20:30    (  50.35, -78.26)  171.45            102
 12/21/2017   08:57:41   (  49.89,-100.69) 12/21/2017   09:01:58    (  50.46,-103.59)  215.89            257
 12/23/2017   18:16:59   (  49.99, -80.20) 12/23/2017   18:10:46    (  49.71, -81.81)  119.71            373
 12/23/2017   19:55:52   (  49.98,-104.92) 12/23/2017   19:52:14    (  49.60,-107.14)  164.94            218
 12/23/2017   21:31:02   (  36.69,-125.00) 12/23/2017   21:29:53    (  36.22,-127.64)  241.75             69
 12/26/2017   09:23:55   (  22.47,-113.66) 12/26/2017   09:16:16    (  22.57,-114.18)   55.13            459