Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2017 7 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)
 07/22/2017   06:30:02   (  46.36, -65.03) 07/22/2017   06:30:11    (  46.70, -66.90)  148.73              9
 07/22/2017   08:07:55   (  49.92, -88.33) 07/22/2017   08:10:37    (  50.39, -90.71)  176.86            162
 07/22/2017   09:46:48   (  49.92,-113.05) 07/22/2017   09:52:05    (  50.50,-116.03)  221.30            317
 07/24/2017   19:06:04   (  49.96, -92.51) 07/24/2017   19:00:56    (  49.63, -94.28)  132.34            308
 07/24/2017   20:44:57   (  49.96,-117.23) 07/24/2017   20:42:25    (  49.57,-119.63)  177.66            152
 07/27/2017   10:11:47   (  26.75,-124.97) 07/27/2017   10:05:18    (  26.84,-125.58)   61.28            389
 07/30/2017   07:18:26   (  49.90, -75.98) 07/30/2017   07:20:01    (  50.29, -78.09)  156.92             95