Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 10.  Predictions up to the next  14.0 days:

     Date     Time(AURA) AURA Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/12/2016   02:52:02   (  79.25,  32.00) 06/12/2016   02:51:55  (  79.24,  31.92)    1.95                 7
 06/12/2016   03:41:22   ( -79.52,-158.53) 06/12/2016   03:42:32  ( -79.52,-158.56)    0.74                70
 06/14/2016   18:19:08   ( -79.10, -20.66) 06/14/2016   18:18:09  ( -79.11, -20.60)    1.35                59
 06/14/2016   19:08:27   (  79.37, 148.69) 06/14/2016   19:08:46  (  79.37, 148.64)    0.98                19
 06/17/2016   10:35:32   ( -79.26,  96.22) 06/17/2016   10:34:59  ( -79.27,  96.37)    3.07                33
 06/17/2016   11:24:52   (  79.48, -94.66) 06/17/2016   11:25:37  (  79.49, -94.62)    0.80                45
 06/20/2016   02:52:00   ( -79.26,-147.93) 06/20/2016   02:51:54  ( -79.26,-147.96)    0.78                 6
 06/20/2016   03:41:19   (  79.51,  21.43) 06/20/2016   03:42:31  (  79.50,  21.29)    3.11                72
 06/22/2016   18:19:03   (  79.11, 159.39) 06/22/2016   18:18:06  (  79.11, 159.44)    1.07                57