Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2017 5 17.  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)
 05/19/2017   06:30:21   (  46.33, -65.08) 05/19/2017   06:30:18    (  46.67, -67.00)  151.76              3
 05/19/2017   08:08:14   (  49.90, -88.38) 05/19/2017   08:10:44    (  50.35, -90.80)  179.64            150
 05/19/2017   09:47:07   (  49.90,-113.10) 05/19/2017   09:52:11    (  50.52,-116.10)  224.05            304
 05/21/2017   19:06:23   (  49.95, -92.55) 05/21/2017   19:01:00    (  49.63, -94.35)  134.15            323
 05/21/2017   20:45:16   (  49.95,-117.27) 05/21/2017   20:42:28    (  49.52,-119.68)  179.45            168
 05/24/2017   10:12:04   (  26.85,-124.99) 05/24/2017   10:05:37    (  25.76,-125.92)  152.53            387
 05/27/2017   07:18:46   (  49.93, -76.01) 05/27/2017   07:19:59    (  50.34, -78.12)  156.60             73