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   02:51:55   ( -79.16,-148.44) 09/27/2017   02:51:31  ( -79.16,-148.49)    1.18                24
 09/27/2017   03:41:12   (  79.51,  21.51) 09/27/2017   03:42:05  (  79.52,  21.64)    2.72                53
 09/29/2017   18:20:16   (  75.65, 145.03) 09/29/2017   18:19:03  (  75.82, 143.87)   37.21                73
 09/29/2017   19:08:23   ( -79.26, -31.93) 09/29/2017   19:08:25  ( -79.25, -32.02)    2.09                 2
 10/02/2017   10:35:32   (  79.03, -85.14) 10/02/2017   10:34:43  (  79.02, -85.27)    3.08                49
 10/02/2017   11:24:51   ( -79.35,  84.55) 10/02/2017   11:25:19  ( -79.34,  84.45)    2.34                28
 10/05/2017   02:51:59   (  79.15,  31.50) 10/05/2017   02:51:36  (  79.15,  31.40)    2.42                23
 10/05/2017   03:41:18   ( -79.44,-159.01) 10/05/2017   03:42:12  ( -79.43,-159.09)    1.89                54
 10/07/2017   18:19:44   ( -77.37, -29.13) 10/07/2017   18:18:30  ( -77.48, -29.69)   18.60                74
 10/07/2017   19:08:25   (  79.27, 148.12) 10/07/2017   19:08:28  (  79.27, 148.07)    1.10                 3
 10/10/2017   10:35:33   ( -79.12,  95.42) 10/10/2017   10:34:44  ( -79.13,  95.51)    1.96                49