Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 4 12.  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)
 04/15/2019   11:25:26   ( -79.34,  84.32) 04/15/2019   11:24:18  ( -79.35,  84.43)    2.63                68
 04/15/2019   12:14:47   (  79.52,-106.77) 04/15/2019   12:14:57  (  79.52,-106.83)    1.12                10
 04/18/2019   03:41:46   ( -79.48,-158.84) 04/18/2019   03:41:11  ( -79.48,-158.70)    3.14                35
 04/18/2019   04:31:07   (  79.66,  10.09) 04/18/2019   04:31:50  (  79.65,  10.07)    0.58                43
 04/20/2019   19:58:08   ( -79.50, -42.80) 04/20/2019   19:58:07  ( -79.49, -42.90)    2.31                 1
 04/20/2019   20:45:47   (  81.84, 163.36) 04/20/2019   20:47:00  (  81.29, 163.45)   61.27                73
 04/23/2019   11:25:07   (  79.39, -95.25) 04/23/2019   11:24:21  (  79.40, -95.19)    1.27                46
 04/23/2019   12:14:29   ( -79.59,  73.74) 04/23/2019   12:15:01  ( -79.59,  73.69)    0.96                32
 04/26/2019   03:41:27   (  79.52,  21.50) 04/26/2019   03:41:14  (  79.53,  21.64)    2.99                13