Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 27.  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)
 07/28/2021   02:51:56   (  79.26,  32.18) 07/28/2021   02:51:15  (  79.25,  32.05)    3.06                41
 07/28/2021   03:41:16   ( -79.53,-158.33) 07/28/2021   03:41:52  ( -79.53,-158.42)    2.06                36
 07/30/2021   19:08:20   (  79.45, 149.31) 07/30/2021   19:08:06  (  79.45, 149.39)    1.67                14
 07/30/2021   19:57:41   ( -79.68, -41.39) 07/30/2021   19:58:44  ( -79.69, -41.26)    2.56                63
 08/02/2021   10:35:28   ( -79.26,  96.30) 08/02/2021   10:34:24  ( -79.26,  96.38)    1.90                64
 08/02/2021   11:24:47   (  79.51, -94.34) 08/02/2021   11:25:01  (  79.51, -94.31)    0.55                14
 08/05/2021   02:51:54   ( -79.36,-147.13) 08/05/2021   02:51:18  ( -79.36,-147.08)    1.18                36
 08/05/2021   03:41:14   (  79.58,  21.98) 08/05/2021   03:41:56  (  79.58,  21.98)    0.07                42
 08/07/2021   19:08:20   ( -79.42, -30.84) 08/07/2021   19:08:12  ( -79.43, -30.80)    1.04                 8