Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 5 30.  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)
 06/01/2017   19:08:34   (  79.27, 148.08) 06/01/2017   19:07:37  (  79.28, 148.18)    2.09                57
 06/01/2017   19:57:57   ( -79.43, -43.25) 06/01/2017   19:58:18  ( -79.42, -43.39)    3.16                21
 06/04/2017   11:25:01   (  79.32, -95.75) 06/04/2017   11:24:31  (  79.31, -95.77)    0.61                30
 06/04/2017   12:14:21   ( -79.59,  73.74) 06/04/2017   12:15:08  ( -79.59,  73.76)    0.45                47
 06/07/2017   03:41:27   (  79.36,  20.38) 06/07/2017   03:41:24  (  79.35,  20.26)    2.64                 3
 06/07/2017   04:30:47   ( -79.63,-170.09) 06/07/2017   04:32:01  ( -79.62,-170.17)    1.91                74
 06/09/2017   19:08:34   ( -79.17, -32.60) 06/09/2017   19:07:40  ( -79.16, -32.72)    2.78                54
 06/09/2017   19:57:50   (  79.54, 137.52) 06/09/2017   19:58:13  (  79.55, 137.63)    2.30                23
 06/12/2017   11:24:57   ( -79.35,  84.48) 06/12/2017   11:24:29  ( -79.36,  84.59)    2.48                28