Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 5 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)
 05/14/2021   11:24:59   (  79.33, -95.61) 05/14/2021   11:24:07  (  79.33, -95.63)    0.48                52
 05/14/2021   12:14:19   ( -79.61,  73.91) 05/14/2021   12:14:44  ( -79.61,  74.01)    2.19                25
 05/17/2021   03:41:24   (  79.44,  20.99) 05/17/2021   03:41:00  (  79.44,  21.03)    0.89                24
 05/17/2021   04:30:47   ( -79.60,-170.25) 05/17/2021   04:31:41  ( -79.60,-170.39)    2.80                54
 05/19/2021   19:08:32   ( -79.25, -32.06) 05/19/2021   19:07:19  ( -79.24, -32.07)    0.27                73
 05/19/2021   19:57:50   (  79.54, 137.57) 05/19/2021   19:57:54  (  79.55, 137.70)    2.88                 4
 05/22/2021   11:24:57   ( -79.38,  84.72) 05/22/2021   11:24:12  ( -79.39,  84.83)    2.32                45
 05/22/2021   12:14:17   (  79.60,-106.14) 05/22/2021   12:14:50  (  79.59,-106.18)    0.96                33
 05/25/2021   03:41:24   ( -79.44,-159.02) 05/25/2021   03:41:08  ( -79.44,-159.06)    0.84                16
 05/25/2021   04:30:42   (  79.73,  10.66) 05/25/2021   04:31:43  (  79.73,  10.77)    2.35                61
 05/27/2021   19:08:28   (  79.28, 148.16) 05/27/2021   19:07:23  (  79.28, 148.17)    0.16                65