Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 12 24.  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)
 12/26/2016   10:35:21   ( -79.40,  97.28) 12/26/2016   10:34:30  ( -79.39,  97.15)    2.75                51
 12/26/2016   11:24:39   (  79.70, -92.97) 12/26/2016   11:25:05  (  79.69, -92.97)    0.37                26
 12/29/2016   02:51:49   ( -79.47,-146.32) 12/29/2016   02:51:22  ( -79.47,-146.44)    2.55                27
 12/29/2016   03:41:07   (  79.77,  23.46) 12/29/2016   03:41:57  (  79.77,  23.47)    0.30                50
 12/31/2016   19:08:16   ( -79.58, -29.68) 12/31/2016   19:08:13  ( -79.58, -29.75)    1.49                 3
 12/31/2016   19:57:12   (  80.59, 146.81) 12/31/2016   19:58:26  (  80.47, 147.03)   13.72                74
 01/03/2017   10:35:22   (  79.41, -82.64) 01/03/2017   10:34:26  (  79.40, -82.71)    1.57                56
 01/03/2017   11:24:42   ( -79.68,  86.92) 01/03/2017   11:25:03  ( -79.68,  86.94)    0.45                21
 01/06/2017   02:51:48   (  79.54,  34.16) 01/06/2017   02:51:16  (  79.55,  34.22)    1.39                32