Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 9.  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)
 04/10/2019   03:42:01   (  79.45,  21.01) 04/10/2019   03:41:06  (  79.45,  21.08)    1.34                55
 04/10/2019   04:31:23   ( -79.64,-170.03) 04/10/2019   04:31:46  ( -79.63,-170.10)    1.57                23
 04/12/2019   19:58:28   (  79.46, 136.97) 04/12/2019   19:57:59  (  79.46, 136.88)    2.01                29
 04/12/2019   20:47:47   ( -79.76, -53.23) 04/12/2019   20:48:35  ( -79.76, -53.15)    1.68                48
 04/15/2019   12:14:52   (  79.58,-106.31) 04/15/2019   12:14:48  (  79.59,-106.24)    1.44                 4
 04/15/2019   13:04:13   ( -79.77,  62.72) 04/15/2019   13:05:27  ( -79.77,  62.66)    1.18                74
 04/18/2019   03:41:58   ( -79.36,-159.57) 04/18/2019   03:41:03  ( -79.35,-159.70)    2.92                55
 04/18/2019   04:31:17   (  79.62,   9.87) 04/18/2019   04:31:39  (  79.62,   9.81)    1.24                22
 04/20/2019   19:58:21   ( -79.52, -42.64) 04/20/2019   19:57:51  ( -79.52, -42.59)    1.19                30