Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 6 14.  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)
 06/15/2021   11:24:48   (  79.47, -94.65) 06/15/2021   11:24:26  (  79.48, -94.53)    2.63                22
 06/15/2021   12:14:11   ( -79.62,  74.07) 06/15/2021   12:15:07  ( -79.62,  74.04)    0.63                56
 06/18/2021   02:51:57   ( -79.22,-148.07) 06/18/2021   02:50:46  ( -79.21,-148.12)    1.24                71
 06/18/2021   03:41:15   (  79.52,  21.59) 06/18/2021   03:41:21  (  79.53,  21.67)    1.53                 6
 06/20/2021   19:08:24   ( -79.31, -31.61) 06/20/2021   19:07:41  ( -79.30, -31.70)    2.10                43
 06/20/2021   19:57:42   (  79.61, 138.08) 06/20/2021   19:58:16  (  79.61, 138.12)    0.92                34
 06/23/2021   11:24:51   ( -79.40,  84.84) 06/23/2021   11:24:36  ( -79.39,  84.73)    2.47                15
 06/23/2021   12:14:09   (  79.69,-105.46) 06/23/2021   12:15:11  (  79.69,-105.42)    0.80                62
 06/26/2021   02:51:56   (  79.27,  32.25) 06/26/2021   02:50:51  (  79.27,  32.32)    1.53                65