Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 9 2.  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)
 09/03/2018   11:25:07   ( -79.28,  84.01) 09/03/2018   11:25:02  ( -79.28,  84.03)    0.45                 5
 09/03/2018   12:14:26   (  79.56,-106.51) 09/03/2018   12:15:38  (  79.56,-106.44)    1.65                72
 09/06/2018   02:52:13   (  79.11,  31.15) 09/06/2018   02:51:18  (  79.11,  31.20)    1.09                55
 09/06/2018   03:41:34   ( -79.35,-159.70) 09/06/2018   03:41:57  ( -79.34,-159.75)    1.05                23
 09/08/2018   19:08:39   (  79.20, 147.63) 09/08/2018   19:08:12  (  79.20, 147.64)    0.29                27
 09/08/2018   19:58:00   ( -79.44, -43.18) 09/08/2018   19:58:51  ( -79.43, -43.28)    2.18                51
 09/11/2018   10:37:27   ( -74.31,  77.38) 09/11/2018   10:36:13  ( -74.57,  75.98)   50.91                74
 09/11/2018   11:25:05   (  79.29, -95.91) 09/11/2018   11:25:06  (  79.29, -95.92)    0.33                 1
 09/14/2018   02:52:13   ( -79.04,-149.29) 09/14/2018   02:51:25  ( -79.03,-149.40)    2.63                48
 09/14/2018   03:41:30   (  79.38,  20.53) 09/14/2018   03:41:59  (  79.38,  20.52)    0.35                29
 09/16/2018   19:08:39   ( -79.12, -32.88) 09/16/2018   19:08:19  ( -79.12, -33.01)    2.73                20