Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 6 27.  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)
 06/28/2016   02:51:56   (  79.29,  32.32) 06/28/2016   02:51:50  (  79.30,  32.35)    0.84                 6
 06/28/2016   03:41:15   ( -79.61,-157.92) 06/28/2016   03:42:26  ( -79.61,-157.78)    2.80                71
 06/30/2016   18:19:05   ( -79.02, -21.12) 06/30/2016   18:18:07  ( -79.02, -21.18)    1.40                58
 06/30/2016   19:08:21   (  79.41, 148.95) 06/30/2016   19:08:40  (  79.41, 149.03)    1.73                19
 07/03/2016   10:35:31   ( -79.15,  95.49) 07/03/2016   10:34:58  ( -79.15,  95.47)    0.56                33
 07/03/2016   11:24:48   (  79.48, -94.66) 07/03/2016   11:25:32  (  79.49, -94.54)    2.62                44
 07/06/2016   02:51:57   ( -79.26,-147.88) 07/06/2016   02:51:49  ( -79.27,-147.87)    0.38                 8
 07/06/2016   03:41:17   (  79.48,  21.20) 07/06/2016   03:42:27  (  79.47,  21.06)    2.97                70
 07/08/2016   18:19:04   (  79.05, 159.00) 07/08/2016   18:18:04  (  79.04, 158.96)    1.00                60