Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 3 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)
 03/27/2019   19:58:25   (  79.63, 138.18) 03/27/2019   19:58:06  (  79.63, 138.29)    2.32                19
 03/27/2019   20:47:48   ( -79.78, -53.07) 03/27/2019   20:48:47  ( -79.77, -53.16)    1.94                59
 03/30/2019   11:25:35   ( -79.40,  84.82) 03/30/2019   11:24:21  ( -79.40,  84.83)    0.44                74
 03/30/2019   12:14:53   (  79.70,-105.43) 03/30/2019   12:14:56  (  79.71,-105.29)    2.98                 3
 04/02/2019   03:42:03   ( -79.51,-158.56) 04/02/2019   03:41:11  ( -79.51,-158.50)    1.39                52
 04/02/2019   04:31:24   (  79.69,  10.39) 04/02/2019   04:31:50  (  79.68,  10.27)    2.57                26
 04/04/2019   19:58:31   ( -79.61, -41.95) 04/04/2019   19:58:01  ( -79.62, -41.82)    2.69                30
 04/04/2019   20:47:53   (  79.75, 126.74) 04/04/2019   20:48:41  (  79.75, 126.67)    1.45                48
 04/07/2019   12:15:02   ( -79.60,  73.84) 04/07/2019   12:14:55  ( -79.59,  73.74)    2.19                 7