Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 25.  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)
 04/26/2019   03:41:46   (  79.37,  20.44) 04/26/2019   03:41:19  (  79.36,  20.30)    3.07                27
 04/26/2019   04:31:05   ( -79.67,-169.81) 04/26/2019   04:31:55  ( -79.68,-169.76)    1.11                50
 04/28/2019   19:10:21   ( -75.16, -48.73) 04/28/2019   19:09:07  ( -75.42, -50.09)   48.08                74
 04/28/2019   19:58:10   (  79.52, 137.35) 04/28/2019   19:58:11  (  79.52, 137.39)    0.84                 1
 05/01/2019   11:25:15   ( -79.41,  84.81) 05/01/2019   11:24:27  ( -79.41,  84.95)    2.99                48
 05/01/2019   12:14:36   (  79.59,-106.27) 05/01/2019   12:15:06  (  79.58,-106.33)    1.45                30
 05/04/2019   03:41:40   ( -79.48,-158.83) 05/04/2019   03:41:21  ( -79.48,-158.79)    0.90                19
 05/04/2019   04:30:59   (  79.73,  10.64) 05/04/2019   04:31:57  (  79.74,  10.78)    3.00                58
 05/06/2019   19:08:45   (  79.30, 148.25) 05/06/2019   19:07:37  (  79.31, 148.32)    1.52                68