Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2018 6 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)
 06/23/2018   06:30:59   (  45.26, -65.44) 06/23/2018   06:30:40    (  45.58, -67.41)  158.21             19
 06/23/2018   08:08:34   (  49.89, -88.35) 06/23/2018   08:10:47    (  50.36, -90.78)  180.91            133
 06/23/2018   09:47:27   (  49.90,-113.07) 06/23/2018   09:52:14    (  50.52,-116.08)  225.33            287
 06/25/2018   19:06:44   (  49.99, -92.53) 06/25/2018   19:01:03    (  49.64, -94.34)  135.75            341
 06/25/2018   20:45:37   (  49.99,-117.25) 06/25/2018   20:42:32    (  49.59,-119.69)  181.00            185
 06/28/2018   10:12:28   (  26.67,-125.00) 06/28/2018   10:05:58    (  24.71,-126.17)  247.65            390