Simultaneous Nadir Overpasses (SNOs) near US between AQUA and NPP
TLE Epoch: 2012 5 16.  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)
 05/21/2012   06:31:58   (  41.71, -66.72) 05/21/2012   06:30:36    (  42.09, -68.84)  180.82             82
 05/21/2012   08:08:33   (  49.91, -88.40) 05/21/2012   08:09:42    (  50.40, -90.91)  186.95             69
 05/21/2012   09:47:26   (  49.91,-113.12) 05/21/2012   09:51:10    (  50.51,-116.24)  231.41            224
 05/23/2012   19:06:38   (  49.96, -92.54) 05/23/2012   18:59:56    (  49.65, -94.43)  140.50            402
 05/23/2012   20:45:31   (  49.96,-117.26) 05/23/2012   20:41:24    (  49.54,-119.76)  185.80            247