Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 5 28.  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)
 05/29/2016   18:19:12   ( -79.06, -20.88) 05/29/2016   18:18:13  ( -79.06, -20.90)    0.29                59
 05/29/2016   19:08:31   (  79.34, 148.48) 05/29/2016   19:08:50  (  79.33, 148.38)    2.18                19
 06/01/2016   10:35:36   ( -79.23,  96.02) 06/01/2016   10:35:02  ( -79.24,  96.13)    2.41                34
 06/01/2016   11:24:55   (  79.50, -94.58) 06/01/2016   11:25:39  (  79.50, -94.54)    0.69                44
 06/04/2016   02:52:04   ( -79.27,-147.84) 06/04/2016   02:51:56  ( -79.27,-147.87)    0.49                 8
 06/04/2016   03:41:24   (  79.49,  21.29) 06/04/2016   03:42:34  (  79.49,  21.18)    2.24                70
 06/06/2016   18:19:09   (  79.13, 159.52) 06/06/2016   18:18:09  (  79.14, 159.66)    3.08                60
 06/06/2016   19:08:31   ( -79.34, -31.51) 06/06/2016   19:08:49  ( -79.33, -31.62)    2.65                18
 06/09/2016   10:35:35   (  79.23, -83.96) 06/09/2016   10:35:01  (  79.24, -83.89)    1.63                34