Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 18.  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)
 08/18/2018   11:25:12   ( -79.26,  83.87) 08/18/2018   11:24:54  ( -79.26,  83.87)    0.09                18
 08/18/2018   12:14:31   (  79.53,-106.68) 08/18/2018   12:15:30  (  79.54,-106.62)    1.38                59
 08/21/2018   02:52:15   (  79.12,  31.25) 08/21/2018   02:51:08  (  79.13,  31.34)    1.91                67
 08/21/2018   03:41:36   ( -79.36,-159.60) 08/21/2018   03:41:47  ( -79.36,-159.59)    0.14                11
 08/23/2018   19:08:40   (  79.22, 147.73) 08/23/2018   19:08:02  (  79.23, 147.83)    2.32                38
 08/23/2018   19:58:01   ( -79.46, -43.08) 08/23/2018   19:58:41  ( -79.46, -43.05)    0.60                40
 08/26/2018   11:25:04   (  79.35, -95.55) 08/26/2018   11:24:55  (  79.36, -95.40)    3.14                 9
 08/26/2018   12:14:26   ( -79.55,  73.42) 08/26/2018   12:15:35  ( -79.55,  73.49)    1.44                69
 08/29/2018   02:52:10   ( -79.17,-148.46) 08/29/2018   02:51:13  ( -79.18,-148.32)    2.98                57
 08/29/2018   03:41:31   (  79.36,  20.39) 08/29/2018   03:41:52  (  79.35,  20.30)    2.08                21
 08/31/2018   19:08:36   ( -79.18, -32.53) 08/31/2018   19:08:09  ( -79.17, -32.62)    1.98                27