Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 4 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)
 04/20/2018   06:31:56   (  43.62, -66.07) 04/20/2018   06:31:07    (  43.99, -68.06)  165.05             49
 04/20/2018   08:09:03   (  49.92, -88.40) 04/20/2018   08:10:46    (  50.39, -90.82)  180.39            103
 04/20/2018   09:47:56   (  49.92,-113.12) 04/20/2018   09:52:14    (  50.50,-116.14)  224.85            258
 04/22/2018   19:07:09   (  49.95, -92.55) 04/22/2018   19:01:02    (  49.62, -94.38)  136.53            367
 04/22/2018   20:46:02   (  49.95,-117.27) 04/22/2018   20:42:30    (  49.51,-119.71)  181.85            212
 04/28/2018   07:19:29   (  49.92, -76.02) 04/28/2018   07:20:03    (  50.35, -78.15)  159.65             34
 04/28/2018   08:58:22   (  49.92,-100.74) 04/28/2018   09:01:31    (  50.46,-103.48)  204.15            189