Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 29.  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)
 05/01/2021   03:41:26   (  79.37,  20.53) 05/01/2021   03:40:49  (  79.37,  20.46)    1.67                37
 05/01/2021   04:30:46   ( -79.65,-169.93) 05/01/2021   04:31:26  ( -79.65,-169.91)    0.40                40
 05/03/2021   19:57:51   (  79.52, 137.38) 05/03/2021   19:57:42  (  79.52, 137.43)    0.90                 9
 05/03/2021   20:47:12   ( -79.75, -53.29) 05/03/2021   20:48:20  ( -79.76, -53.14)    3.00                68
 05/06/2021   11:24:59   ( -79.32,  84.29) 05/06/2021   11:24:01  ( -79.32,  84.32)    0.69                58
 05/06/2021   12:14:19   (  79.54,-106.60) 05/06/2021   12:14:39  (  79.53,-106.69)    1.92                20
 05/09/2021   03:41:25   ( -79.41,-159.23) 05/09/2021   03:40:56  ( -79.41,-159.27)    0.95                29
 05/09/2021   04:30:43   (  79.70,  10.43) 05/09/2021   04:31:31  (  79.70,  10.57)    2.89                48
 05/11/2021   19:57:50   ( -79.49, -42.81) 05/11/2021   19:57:50  ( -79.48, -42.87)    1.40                 0