Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 6 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)
 06/07/2017   03:41:27   (  79.38,  20.52) 06/07/2017   03:41:24  (  79.37,  20.42)    2.19                 3
 06/07/2017   04:30:47   ( -79.64,-169.99) 06/07/2017   04:32:01  ( -79.64,-170.04)    1.28                74
 06/09/2017   19:08:34   ( -79.18, -32.49) 06/09/2017   19:07:40  ( -79.18, -32.58)    1.98                54
 06/09/2017   19:57:51   (  79.52, 137.40) 06/09/2017   19:58:14  (  79.53, 137.53)    2.96                23
 06/12/2017   11:24:59   ( -79.25,  83.84) 06/12/2017   11:24:32  ( -79.24,  83.71)    2.96                27
 06/12/2017   12:14:16   (  79.59,-106.26) 06/12/2017   12:15:06  (  79.60,-106.16)    2.24                50
 06/15/2017   03:41:21   ( -79.47,-158.82) 06/15/2017   03:41:20  ( -79.48,-158.68)    3.04                 1
 06/17/2017   19:08:26   (  79.28, 148.17) 06/17/2017   19:07:35  (  79.29, 148.31)    3.06                51