Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 3 13.  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)
 03/13/2018   18:17:41   (  49.98, -80.20) 03/13/2018   18:10:06    (  49.70, -81.68)  111.00            455
 03/13/2018   19:56:34   (  49.97,-104.92) 03/13/2018   19:51:34    (  49.59,-107.01)  156.23            300
 03/13/2018   21:31:43   (  36.61,-124.98) 03/13/2018   21:29:12    (  36.16,-127.49)  230.20            151
 03/19/2018   06:32:06   (  42.98, -66.25) 03/19/2018   06:31:08    (  43.35, -68.27)  168.99             58
 03/19/2018   08:09:02   (  49.94, -88.34) 03/19/2018   08:10:36    (  50.39, -90.79)  181.69             94
 03/19/2018   09:47:56   (  49.88,-113.09) 03/19/2018   09:52:04    (  50.50,-116.12)  226.42            248
 03/21/2018   19:07:13   (  49.99, -92.58) 03/21/2018   19:00:54    (  49.70, -94.39)  133.44            379
 03/21/2018   20:46:06   (  49.99,-117.30) 03/21/2018   20:42:22    (  49.59,-119.71)  178.70            224