Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 3 28.  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, -42.69) 03/29/2017   19:58:04  ( -79.50, -42.75)    1.10                 8
 03/29/2017   20:47:31   (  79.76, 126.79) 03/29/2017   20:48:40  (  79.76, 126.83)    0.92                69
 04/01/2017   11:25:19   (  79.34, -95.58) 04/01/2017   11:24:16  (  79.34, -95.61)    0.64                63
 04/01/2017   12:14:38   ( -79.66,  74.24) 04/01/2017   12:14:52  ( -79.66,  74.36)    2.55                14
 04/04/2017   03:41:48   (  79.37,  20.49) 04/04/2017   03:41:08  (  79.36,  20.37)    2.60                40
 04/04/2017   04:31:07   ( -79.68,-169.68) 04/04/2017   04:31:44  ( -79.68,-169.64)    0.70                37
 04/06/2017   19:58:12   (  79.54, 137.55) 04/06/2017   19:57:54  (  79.55, 137.68)    2.77                18
 04/06/2017   20:47:34   ( -79.74, -53.37) 04/06/2017   20:48:34  ( -79.74, -53.38)    0.38                60
 04/09/2017   11:25:21   ( -79.34,  84.40) 04/09/2017   11:24:09  ( -79.34,  84.45)    1.02                72