Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 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)
 04/12/2021   11:25:06   (  79.35, -95.56) 04/12/2021   11:24:03  (  79.36, -95.47)    2.04                63
 04/12/2021   12:14:26   ( -79.62,  73.96) 04/12/2021   12:14:40  ( -79.63,  74.10)    3.03                14
 04/15/2021   03:41:33   (  79.36,  20.39) 04/15/2021   03:40:56  (  79.35,  20.30)    1.92                37
 04/15/2021   04:30:53   ( -79.63,-170.06) 04/15/2021   04:31:33  ( -79.63,-170.10)    0.87                40
 04/17/2021   19:57:57   (  79.52, 137.36) 04/17/2021   19:57:45  (  79.52, 137.41)    1.13                12
 04/17/2021   20:47:18   ( -79.75, -53.30) 04/17/2021   20:48:23  ( -79.76, -53.19)    2.23                65
 04/20/2021   11:25:05   ( -79.31,  84.17) 04/20/2021   11:24:01  ( -79.31,  84.18)    0.38                64
 04/20/2021   12:14:25   (  79.52,-106.74) 04/20/2021   12:14:39  (  79.52,-106.83)    1.73                14
 04/23/2021   03:41:32   ( -79.35,-159.69) 04/23/2021   03:40:54  ( -79.34,-159.78)    1.87                38