Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 5 5.  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)
 05/06/2017   03:41:29   (  79.42,  20.80) 05/06/2017   03:41:22  (  79.42,  20.76)    1.03                 7
 05/06/2017   04:30:49   ( -79.68,-169.72) 05/06/2017   04:31:59  ( -79.69,-169.63)    2.08                70
 05/08/2017   19:08:37   ( -79.25, -32.07) 05/08/2017   19:07:38  ( -79.25, -32.08)    0.27                59
 05/08/2017   19:57:55   (  79.56, 137.64) 05/08/2017   19:58:13  (  79.56, 137.76)    2.39                18
 05/11/2017   11:25:02   ( -79.39,  84.73) 05/11/2017   11:24:28  ( -79.40,  84.87)    3.01                34
 05/11/2017   12:14:23   (  79.58,-106.32) 05/11/2017   12:15:07  (  79.58,-106.34)    0.49                44
 05/14/2017   03:41:31   ( -79.42,-159.24) 05/14/2017   03:41:23  ( -79.42,-159.24)    0.04                 8
 05/14/2017   04:30:52   (  79.60,   9.71) 05/14/2017   04:32:02  (  79.59,   9.55)    3.22                70
 05/16/2017   19:08:37   (  79.27, 148.07) 05/16/2017   19:07:37  (  79.28, 148.14)    1.48                60
 05/16/2017   19:58:00   ( -79.44, -43.22) 05/16/2017   19:58:18  ( -79.43, -43.36)    2.86                18
 05/19/2017   11:25:06   (  79.29, -95.94) 05/19/2017   11:24:32  (  79.29, -95.99)    1.09                34