Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 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)
 05/30/2017   03:41:29   ( -79.41,-159.24) 05/30/2017   03:41:23  ( -79.41,-159.23)    0.20                 6
 05/30/2017   04:30:50   (  79.61,   9.73) 05/30/2017   04:32:02  (  79.60,   9.64)    1.97                72
 06/01/2017   19:08:34   (  79.27, 148.06) 06/01/2017   19:07:37  (  79.28, 148.15)    2.08                57
 06/01/2017   19:57:54   ( -79.54, -42.48) 06/01/2017   19:58:14  ( -79.55, -42.33)    3.16                20
 06/04/2017   11:25:01   (  79.31, -95.78) 06/04/2017   11:24:31  (  79.31, -95.80)    0.39                30
 06/04/2017   12:14:21   ( -79.59,  73.72) 06/04/2017   12:15:08  ( -79.59,  73.75)    0.52                47
 06/07/2017   03:41:27   (  79.35,  20.35) 06/07/2017   03:41:24  (  79.35,  20.24)    2.14                 3
 06/07/2017   04:30:47   ( -79.63,-170.11) 06/07/2017   04:32:01  ( -79.62,-170.18)    1.42                74
 06/09/2017   19:08:33   ( -79.20, -32.38) 06/09/2017   19:07:39  ( -79.19, -32.46)    1.86                54