Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 5 31.  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   (  79.28, 148.14) 06/01/2017   19:07:37  (  79.29, 148.24)    2.16                57
 06/01/2017   19:57:57   ( -79.44, -43.19) 06/01/2017   19:58:18  ( -79.43, -43.33)    3.03                21
 06/04/2017   11:25:01   (  79.29, -95.94) 06/04/2017   11:24:31  (  79.29, -95.97)    0.53                30
 06/04/2017   12:14:21   ( -79.56,  73.53) 06/04/2017   12:15:08  ( -79.56,  73.56)    0.59                47
 06/07/2017   03:41:27   (  79.37,  20.45) 06/07/2017   03:41:24  (  79.36,  20.33)    2.48                 3
 06/07/2017   04:30:48   ( -79.60,-170.29) 06/07/2017   04:32:02  ( -79.60,-170.38)    1.71                74
 06/09/2017   19:08:34   ( -79.18, -32.54) 06/09/2017   19:07:40  ( -79.17, -32.65)    2.54                54
 06/09/2017   19:57:51   (  79.51, 137.33) 06/09/2017   19:58:14  (  79.52, 137.44)    2.51                23
 06/12/2017   11:24:57   ( -79.36,  84.55) 06/12/2017   11:24:29  ( -79.37,  84.68)    2.75                28