Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 7.  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)
 04/07/2021   03:41:34   ( -79.42,-159.22) 04/07/2021   03:40:58  ( -79.42,-159.23)    0.25                36
 04/07/2021   04:30:54   (  79.64,   9.98) 04/07/2021   04:31:36  (  79.63,   9.88)    2.16                42
 04/09/2021   19:58:00   ( -79.52, -42.66) 04/09/2021   19:57:49  ( -79.52, -42.61)    1.11                11
 04/09/2021   20:47:21   (  79.70, 126.27) 04/09/2021   20:48:28  (  79.70, 126.23)    0.75                67
 04/12/2021   11:25:05   (  79.37, -95.42) 04/12/2021   11:24:02  (  79.38, -95.32)    2.08                63
 04/12/2021   12:14:26   ( -79.61,  73.87) 04/12/2021   12:14:40  ( -79.62,  74.01)    2.99                14
 04/15/2021   03:41:33   (  79.38,  20.53) 04/15/2021   03:40:56  (  79.37,  20.45)    2.00                37
 04/15/2021   04:30:54   ( -79.62,-170.16) 04/15/2021   04:31:34  ( -79.62,-170.21)    1.03                40
 04/17/2021   19:57:57   (  79.50, 137.24) 04/17/2021   19:57:45  (  79.50, 137.28)    0.83                12
 04/17/2021   20:47:18   ( -79.74, -53.40) 04/17/2021   20:48:23  ( -79.75, -53.31)    1.90                65
 04/20/2021   11:25:05   ( -79.29,  84.06) 04/20/2021   11:24:01  ( -79.29,  84.05)    0.27                64