Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 18.  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)
 04/20/2021   11:25:04   ( -79.32,  84.27) 04/20/2021   11:24:00  ( -79.32,  84.27)    0.21                64
 04/20/2021   12:14:24   (  79.54,-106.59) 04/20/2021   12:14:38  (  79.53,-106.70)    2.32                14
 04/23/2021   03:41:31   ( -79.36,-159.61) 04/23/2021   03:40:53  ( -79.35,-159.72)    2.46                38
 04/23/2021   04:30:49   (  79.65,  10.05) 04/23/2021   04:31:28  (  79.66,  10.13)    1.74                39
 04/25/2021   19:57:55   ( -79.50, -42.75) 04/25/2021   19:57:42  ( -79.51, -42.65)    2.13                13
 04/25/2021   20:47:15   (  79.71, 126.41) 04/25/2021   20:48:20  (  79.71, 126.40)    0.13                65
 04/28/2021   11:25:00   (  79.28, -96.00) 04/28/2021   11:23:56  (  79.28, -96.03)    0.61                64
 04/28/2021   12:14:20   ( -79.56,  73.57) 04/28/2021   12:14:33  ( -79.57,  73.61)    0.93                13
 05/01/2021   03:41:25   (  79.37,  20.51) 05/01/2021   03:40:47  (  79.37,  20.45)    1.37                38