Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 5 19.  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)
 05/22/2018   06:31:14   (  44.92, -65.57) 05/22/2018   06:30:49    (  45.25, -67.58)  162.35             25
 05/22/2018   08:08:42   (  49.91, -88.35) 05/22/2018   08:10:49    (  50.38, -90.82)  183.17            127
 05/22/2018   09:47:35   (  49.91,-113.07) 05/22/2018   09:52:16    (  50.54,-116.11)  227.60            281
 05/24/2018   19:06:50   (  49.95, -92.51) 05/24/2018   19:01:05    (  49.61, -94.37)  138.73            345
 05/24/2018   20:45:43   (  49.95,-117.23) 05/24/2018   20:42:33    (  49.50,-119.70)  184.05            190