Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 1 1.  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)
 01/03/2017   10:35:22   (  79.38, -82.80) 01/03/2017   10:34:26  (  79.38, -82.89)    2.05                56
 01/03/2017   11:24:41   ( -79.69,  86.97) 01/03/2017   11:25:02  ( -79.68,  86.98)    0.08                21
 01/06/2017   02:51:48   (  79.52,  34.00) 01/06/2017   02:51:16  (  79.52,  34.01)    0.35                32
 01/06/2017   03:41:08   ( -79.78,-156.44) 01/06/2017   03:41:53  ( -79.79,-156.34)    2.21                45
 01/08/2017   19:08:16   (  79.57, 150.24) 01/08/2017   19:08:09  (  79.56, 150.10)    3.09                 7
 01/08/2017   19:57:37   ( -79.79, -40.45) 01/08/2017   19:58:47  ( -79.79, -40.52)    1.41                70
 01/11/2017   10:35:20   ( -79.50,  98.04) 01/11/2017   10:34:19  ( -79.51,  98.18)    2.99                61
 01/11/2017   11:24:41   (  79.69, -93.02) 01/11/2017   11:24:58  (  79.69, -92.99)    0.54                17
 01/14/2017   02:51:48   ( -79.55,-145.79) 01/14/2017   02:51:12  ( -79.55,-145.76)    0.59                36