Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 5 25.  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)
 05/27/2016   02:52:03   (  79.28,  32.23) 05/27/2016   02:51:57  (  79.27,  32.17)    1.47                 6
 05/27/2016   03:41:22   ( -79.55,-158.30) 05/27/2016   03:42:33  ( -79.55,-158.32)    0.44                71
 05/29/2016   18:19:08   ( -79.08, -20.75) 05/29/2016   18:18:12  ( -79.08, -20.80)    1.12                56
 05/29/2016   19:08:27   (  79.35, 148.59) 05/29/2016   19:08:49  (  79.34, 148.47)    2.85                22
 06/01/2016   10:35:33   ( -79.15,  95.56) 06/01/2016   10:35:05  ( -79.15,  95.48)    1.60                28
 06/01/2016   11:24:49   (  79.53, -94.31) 06/01/2016   11:25:38  (  79.54, -94.16)    3.17                49
 06/04/2016   02:05:32   (  70.25,  18.18) 06/04/2016   02:04:19  (  70.61,  16.10)   86.98                73
 06/04/2016   02:51:56   ( -79.29,-147.68) 06/04/2016   02:51:56  ( -79.29,-147.72)    1.02                 0
 06/06/2016   18:19:00   (  79.09, 159.33) 06/06/2016   18:18:11  (  79.09, 159.31)    0.46                49