Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2016 9 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)
 09/21/2016   06:29:50   (  46.32, -65.04) 09/21/2016   06:30:53    (  46.70, -66.96)  152.61             63
 09/21/2016   08:07:43   (  49.88, -88.35) 09/21/2016   08:11:19    (  50.38, -90.76)  180.67            216
 09/21/2016   09:46:36   (  49.89,-113.07) 09/21/2016   09:52:47    (  50.50,-116.09)  225.14            371
 09/23/2016   19:05:51   (  49.98, -92.52) 09/23/2016   19:01:39    (  49.69, -94.34)  134.72            252
 09/23/2016   20:44:44   (  49.98,-117.24) 09/23/2016   20:43:07    (  49.58,-119.67)  180.00             97
 09/26/2016   08:34:17   (  20.89,-101.66) 09/26/2016   08:26:11    (  20.93,-101.76)   11.78            486
 09/26/2016   10:10:39   (  29.98,-124.14) 09/26/2016   10:05:04    (  30.13,-124.75)   60.50            335
 09/29/2016   07:18:11   (  49.89, -75.97) 09/29/2016   07:20:43    (  50.31, -78.15)  161.89            152
 09/29/2016   08:57:04   (  49.90,-100.69) 09/29/2016   09:02:11    (  50.42,-103.47)  206.44            307