Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 7 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)
 07/06/2017   11:24:50   (  79.35, -95.52) 07/06/2017   11:24:25  (  79.35, -95.43)    2.00                25
 07/06/2017   12:14:11   ( -79.59,  73.77) 07/06/2017   12:15:03  ( -79.60,  73.90)    2.90                52
 07/09/2017   02:53:51   ( -73.80,-167.87) 07/09/2017   02:52:38  ( -74.05,-169.55)   58.15                73
 07/09/2017   03:41:16   (  79.41,  20.75) 07/09/2017   03:41:17  (  79.40,  20.77)    0.48                 1
 07/11/2017   19:08:24   ( -79.21, -32.30) 07/11/2017   19:07:33  ( -79.21, -32.24)    1.45                51
 07/11/2017   19:57:43   (  79.46, 137.00) 07/11/2017   19:58:10  (  79.46, 136.97)    0.61                27
 07/14/2017   11:24:50   ( -79.30,  84.17) 07/14/2017   11:24:25  ( -79.30,  84.22)    1.06                25
 07/14/2017   12:14:10   (  79.51,-106.77) 07/14/2017   12:15:03  (  79.51,-106.83)    1.08                53
 07/17/2017   02:53:34   (  74.53,  13.81) 07/17/2017   02:52:21  (  74.75,  12.33)   50.57                73
 07/17/2017   03:41:16   ( -79.39,-159.36) 07/17/2017   03:41:17  ( -79.39,-159.31)    1.28                 1
 07/19/2017   19:08:21   (  79.17, 147.49) 07/19/2017   19:07:31  (  79.18, 147.51)    0.63                50