Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 7 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)
 07/27/2017   19:08:21   ( -79.19, -32.42) 07/27/2017   19:07:39  ( -79.19, -32.44)    0.37                42
 07/27/2017   19:57:38   (  79.52, 137.45) 07/27/2017   19:58:13  (  79.53, 137.58)    2.92                35
 07/30/2017   11:24:46   ( -79.34,  84.47) 07/30/2017   11:24:32  ( -79.35,  84.55)    1.80                14
 07/30/2017   12:14:07   (  79.52,-106.67) 07/30/2017   12:15:11  (  79.52,-106.74)    1.40                64
 08/02/2017   02:51:52   (  79.17,  31.58) 08/02/2017   02:50:49  (  79.17,  31.66)    1.68                63
 08/02/2017   03:41:14   ( -79.38,-159.41) 08/02/2017   03:41:29  ( -79.37,-159.50)    2.01                15
 08/04/2017   19:08:20   (  79.20, 147.67) 08/04/2017   19:07:46  (  79.19, 147.58)    1.89                34
 08/04/2017   19:57:39   ( -79.53, -42.53) 08/04/2017   19:58:22  ( -79.53, -42.48)    1.06                43
 08/07/2017   11:24:44   (  79.35, -95.52) 08/07/2017   11:24:38  (  79.35, -95.45)    1.39                 6