Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 8 13.  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)
 08/13/2021   02:51:55   (  79.36,  32.86) 08/13/2021   02:51:22  (  79.36,  32.91)    1.16                33
 08/13/2021   03:41:15   ( -79.63,-157.61) 08/13/2021   03:41:59  ( -79.64,-157.51)    2.11                44
 08/15/2021   19:08:23   (  79.42, 149.12) 08/15/2021   19:08:17  (  79.42, 149.14)    0.51                 6
 08/15/2021   19:57:43   ( -79.69, -41.31) 08/15/2021   19:58:54  ( -79.69, -41.24)    1.44                71
 08/18/2021   10:35:29   ( -79.29,  96.52) 08/18/2021   10:34:32  ( -79.29,  96.60)    1.77                57
 08/18/2021   11:24:49   (  79.51, -94.37) 08/18/2021   11:25:10  (  79.51, -94.37)    0.08                21
 08/21/2021   02:51:56   ( -79.38,-147.00) 08/21/2021   02:51:26  ( -79.38,-146.92)    1.65                30
 08/21/2021   03:41:16   (  79.60,  22.12) 08/21/2021   03:42:04  (  79.59,  22.12)    0.12                48
 08/23/2021   19:08:23   ( -79.47, -30.52) 08/23/2021   19:08:20  ( -79.47, -30.44)    1.84                 3
 08/23/2021   19:56:51   (  81.24, 155.40) 08/23/2021   19:58:04  (  80.98, 156.21)   31.43                73
 08/26/2021   10:35:30   (  79.26, -83.65) 08/26/2021   10:34:37  (  79.27, -83.60)    1.22                53