Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 4 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)
 04/20/2018   06:31:56   (  43.64, -66.06) 04/20/2018   06:31:07    (  43.98, -68.07)  165.65             49
 04/20/2018   08:09:04   (  49.89, -88.40) 04/20/2018   08:10:46    (  50.38, -90.82)  181.22            102
 04/20/2018   09:47:57   (  49.89,-113.12) 04/20/2018   09:52:14    (  50.49,-116.15)  225.64            257
 04/22/2018   19:07:13   (  49.98, -92.58) 04/22/2018   19:01:03    (  49.63, -94.39)  135.42            370
 04/22/2018   20:46:06   (  49.97,-117.30) 04/22/2018   20:42:32    (  49.58,-119.74)  180.71            214
 04/28/2018   07:19:36   (  49.92, -76.03) 04/28/2018   07:20:03    (  50.34, -78.16)  158.82             27
 04/28/2018   08:58:29   (  49.93,-100.75) 04/28/2018   09:01:31    (  50.45,-103.48)  203.30            182