Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 12 30.  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)
 12/31/2016   19:08:16   ( -79.56, -29.81) 12/31/2016   19:08:13  ( -79.56, -29.88)    1.61                 3
 12/31/2016   19:57:13   (  80.55, 146.38) 12/31/2016   19:58:27  (  80.44, 146.58)   12.93                74
 01/03/2017   10:35:23   (  79.40, -82.71) 01/03/2017   10:34:27  (  79.39, -82.81)    2.14                56
 01/03/2017   11:24:43   ( -79.66,  86.81) 01/03/2017   11:25:04  ( -79.67,  86.80)    0.25                21
 01/06/2017   02:51:49   (  79.53,  34.10) 01/06/2017   02:51:17  (  79.53,  34.11)    0.24                32
 01/06/2017   03:41:09   ( -79.80,-156.32) 01/06/2017   03:41:54  ( -79.80,-156.22)    2.05                45
 01/08/2017   19:08:17   (  79.55, 150.10) 01/08/2017   19:08:10  (  79.54, 149.95)    3.17                 7
 01/08/2017   19:57:37   ( -79.81, -40.31) 01/08/2017   19:58:47  ( -79.81, -40.38)    1.55                70
 01/11/2017   10:35:22   ( -79.49,  97.94) 01/11/2017   10:34:21  ( -79.50,  98.07)    2.91                61