Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 9 26.  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   02:51:54   ( -79.20,-148.22) 09/27/2017   02:51:30  ( -79.19,-148.27)    1.16                24
 09/27/2017   03:41:12   (  79.51,  21.47) 09/27/2017   03:42:05  (  79.52,  21.60)    2.72                53
 09/29/2017   18:20:16   (  75.64, 145.01) 09/29/2017   18:19:03  (  75.81, 143.85)   37.29                73
 09/29/2017   19:08:23   ( -79.26, -31.96) 09/29/2017   19:08:25  ( -79.25, -32.05)    2.04                 2
 10/02/2017   10:35:32   (  79.02, -85.18) 10/02/2017   10:34:43  (  79.01, -85.31)    3.07                49
 10/02/2017   11:24:51   ( -79.35,  84.51) 10/02/2017   11:25:19  ( -79.34,  84.41)    2.27                28
 10/05/2017   02:51:59   (  79.15,  31.46) 10/05/2017   02:51:36  (  79.14,  31.35)    2.38                23
 10/05/2017   03:41:19   ( -79.43,-159.05) 10/05/2017   03:42:13  ( -79.43,-159.13)    1.81                54
 10/07/2017   18:19:43   ( -77.40, -28.98) 10/07/2017   18:18:29  ( -77.52, -29.54)   18.22                74