Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 9 24.  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)
 09/27/2017   02:51:55   ( -79.17,-148.36) 09/27/2017   02:51:31  ( -79.17,-148.41)    1.08                24
 09/27/2017   03:41:12   (  79.52,  21.58) 09/27/2017   03:42:05  (  79.53,  21.72)    2.84                53
 09/29/2017   18:20:14   (  75.76, 145.36) 09/29/2017   18:19:01  (  75.92, 144.22)   36.10                73
 09/29/2017   19:08:23   ( -79.27, -31.86) 09/29/2017   19:08:25  ( -79.27, -31.94)    1.92                 2
 10/02/2017   10:35:31   (  79.04, -85.08) 10/02/2017   10:34:42  (  79.03, -85.20)    2.73                49
 10/02/2017   11:24:51   ( -79.33,  84.36) 10/02/2017   11:25:19  ( -79.32,  84.27)    2.00                28
 10/05/2017   02:51:58   (  79.16,  31.55) 10/05/2017   02:51:35  (  79.16,  31.47)    1.85                23
 10/05/2017   03:41:18   ( -79.45,-158.95) 10/05/2017   03:42:12  ( -79.44,-159.01)    1.32                54
 10/07/2017   18:19:39   ( -77.60, -28.16) 10/07/2017   18:18:25  ( -77.70, -28.65)   16.01                74