Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 8 11.  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)
 08/12/2017   19:08:17   ( -79.26, -31.98) 08/12/2017   19:07:51  ( -79.26, -31.93)    1.08                26
 08/12/2017   19:57:38   (  79.44, 136.91) 08/12/2017   19:58:30  (  79.44, 136.76)    3.05                52
 08/15/2017   10:36:01   (  77.42, -93.01) 08/15/2017   10:34:47  (  77.56, -93.52)   19.24                74
 08/15/2017   11:24:43   ( -79.35,  84.51) 08/15/2017   11:24:46  ( -79.35,  84.49)    0.51                 3
 08/18/2017   02:51:48   (  79.19,  31.75) 08/18/2017   02:51:02  (  79.20,  31.81)    1.24                46
 08/18/2017   03:41:10   ( -79.40,-159.28) 08/18/2017   03:41:42  ( -79.40,-159.36)    1.58                32
 08/20/2017   19:08:14   (  79.28, 148.17) 08/20/2017   19:07:57  (  79.28, 148.20)    0.61                17
 08/20/2017   19:57:36   ( -79.48, -42.84) 08/20/2017   19:58:37  ( -79.48, -42.94)    2.18                61
 08/23/2017   10:35:21   ( -79.05,  95.01) 08/23/2017   10:34:16  ( -79.05,  94.94)    1.78                65