Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 3 27.  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)
 03/29/2017   19:58:12   ( -79.51, -42.65) 03/29/2017   19:58:04  ( -79.51, -42.72)    1.67                 8
 03/29/2017   20:47:31   (  79.77, 126.83) 03/29/2017   20:48:40  (  79.77, 126.85)    0.38                69
 04/01/2017   11:25:21   (  79.28, -95.99) 04/01/2017   11:24:18  (  79.27, -96.11)    2.62                63
 04/01/2017   12:14:40   ( -79.60,  73.81) 04/01/2017   12:14:54  ( -79.60,  73.83)    0.53                14
 04/04/2017   03:41:48   (  79.40,  20.68) 04/04/2017   03:41:07  (  79.40,  20.66)    0.55                41
 04/04/2017   04:31:07   ( -79.71,-169.46) 04/04/2017   04:31:43  ( -79.72,-169.33)    2.73                36
 04/06/2017   19:58:14   (  79.52, 137.36) 04/06/2017   19:57:55  (  79.52, 137.44)    1.65                19
 04/06/2017   20:47:36   ( -79.72, -53.56) 04/06/2017   20:48:35  ( -79.71, -53.62)    1.43                59
 04/09/2017   11:25:23   ( -79.34,  84.40) 04/09/2017   11:24:09  ( -79.35,  84.50)    2.29                74