Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 6 29.  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)
 07/01/2017   02:53:33   (  74.74,  14.34) 07/01/2017   02:52:20  (  74.97,  12.89)   48.97                73
 07/01/2017   03:41:18   ( -79.43,-159.12) 07/01/2017   03:41:19  ( -79.43,-159.07)    1.08                 1
 07/03/2017   19:08:26   (  79.17, 147.44) 07/03/2017   19:07:36  (  79.16, 147.35)    1.94                50
 07/03/2017   19:57:46   ( -79.46, -43.04) 07/03/2017   19:58:13  ( -79.45, -43.10)    1.37                27
 07/06/2017   11:24:50   (  79.35, -95.53) 07/06/2017   11:24:25  (  79.35, -95.41)    2.48                25
 07/06/2017   12:14:11   ( -79.59,  73.81) 07/06/2017   12:15:03  ( -79.60,  73.96)    3.17                52
 07/09/2017   02:53:48   ( -73.96,-167.52) 07/09/2017   02:52:34  ( -74.25,-169.04)   56.11                74
 07/09/2017   03:41:16   (  79.40,  20.73) 07/09/2017   03:41:17  (  79.41,  20.78)    1.05                 1
 07/11/2017   19:08:23   ( -79.25, -32.05) 07/11/2017   19:07:32  ( -79.25, -31.95)    2.05                51