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   (  79.61, 138.09) 03/27/2019   19:58:06  (  79.62, 138.20)    2.33                19
 03/27/2019   20:47:48   ( -79.76, -53.16) 03/27/2019   20:48:47  ( -79.76, -53.25)    1.91                59
 03/30/2019   11:25:35   ( -79.42,  84.99) 03/30/2019   11:24:21  ( -79.42,  85.01)    0.53                74
 03/30/2019   12:14:53   (  79.72,-105.25) 03/30/2019   12:14:56  (  79.73,-105.10)    3.15                 3
 04/02/2019   03:42:02   ( -79.53,-158.40) 04/02/2019   03:41:10  ( -79.53,-158.32)    1.83                52
 04/02/2019   04:31:24   (  79.68,  10.29) 04/02/2019   04:31:50  (  79.67,  10.18)    2.17                26
 04/04/2019   19:58:33   ( -79.52, -42.60) 04/04/2019   19:58:04  ( -79.51, -42.73)    2.95                29
 04/04/2019   20:47:52   (  79.77, 126.90) 04/04/2019   20:48:40  (  79.77, 126.87)    0.71                48
 04/07/2019   12:15:01   ( -79.62,  73.98) 04/07/2019   12:14:54  ( -79.61,  73.93)    1.02                 7