Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 11.  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)
 04/12/2019   19:58:26   (  79.43, 136.66) 04/12/2019   19:58:03  (  79.42, 136.61)    1.09                23
 04/12/2019   20:47:45   ( -79.72, -53.58) 04/12/2019   20:48:39  ( -79.73, -53.45)    2.86                54
 04/15/2019   11:25:26   ( -79.34,  84.35) 04/15/2019   11:24:18  ( -79.35,  84.48)    2.94                68
 04/15/2019   12:14:46   (  79.57,-106.48) 04/15/2019   12:14:56  (  79.56,-106.51)    0.75                10
 04/18/2019   03:41:49   ( -79.36,-159.59) 04/18/2019   03:41:15  ( -79.36,-159.71)    2.48                34
 04/18/2019   04:31:07   (  79.66,  10.10) 04/18/2019   04:31:50  (  79.66,  10.12)    0.30                43
 04/20/2019   19:58:08   ( -79.50, -42.80) 04/20/2019   19:58:07  ( -79.50, -42.85)    0.93                 1
 04/20/2019   20:45:35   (  81.83, 168.51) 04/20/2019   20:46:48  (  81.21, 168.20)   68.46                73
 04/23/2019   11:25:09   (  79.31, -95.80) 04/23/2019   11:24:24  (  79.30, -95.93)    2.93                45