Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 5 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)
 05/14/2021   11:24:59   (  79.31, -95.78) 05/14/2021   11:24:07  (  79.31, -95.82)    0.68                52
 05/14/2021   12:14:18   ( -79.62,  74.01) 05/14/2021   12:14:43  ( -79.63,  74.10)    1.93                25
 05/17/2021   03:41:25   (  79.42,  20.83) 05/17/2021   03:41:01  (  79.42,  20.84)    0.27                24
 05/17/2021   04:30:45   ( -79.69,-169.60) 05/17/2021   04:31:38  ( -79.70,-169.46)    2.93                53
 05/19/2021   19:08:33   ( -79.23, -32.18) 05/19/2021   19:07:20  ( -79.22, -32.25)    1.57                73
 05/19/2021   19:57:51   (  79.52, 137.43) 05/19/2021   19:57:55  (  79.53, 137.50)    1.58                 4
 05/22/2021   11:24:59   ( -79.33,  84.38) 05/22/2021   11:24:14  ( -79.34,  84.39)    0.31                45
 05/22/2021   12:14:19   (  79.55,-106.51) 05/22/2021   12:14:52  (  79.54,-106.65)    3.10                33
 05/25/2021   03:41:23   ( -79.47,-158.81) 05/25/2021   03:41:06  ( -79.48,-158.70)    2.37                17