Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2017 9 21.  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)
 09/24/2017   06:30:04   (  46.37, -65.04) 09/24/2017   06:31:00    (  46.74, -67.02)  157.01             56
 09/24/2017   08:07:57   (  49.94, -88.34) 09/24/2017   08:11:26    (  50.42, -90.82)  184.47            209
 09/24/2017   09:46:51   (  49.89,-113.09) 09/24/2017   09:52:55    (  50.48,-116.17)  229.25            364
 09/26/2017   19:06:08   (  49.95, -92.54) 09/26/2017   19:01:44    (  49.59, -94.40)  139.31            264
 09/26/2017   20:45:01   (  49.94,-117.26) 09/26/2017   20:43:13    (  49.54,-119.75)  184.62            108
 09/29/2017   08:34:51   (  20.03,-101.89) 09/29/2017   08:26:31    (  20.09,-102.04)   16.54            500
 09/29/2017   10:11:13   (  29.13,-124.40) 09/29/2017   10:05:24    (  29.28,-125.05)   65.25            349