Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 8 28.  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)
 08/29/2021   02:51:57   (  79.31,  32.53) 08/29/2021   02:51:32  (  79.30,  32.41)    2.88                25
 08/29/2021   03:41:17   ( -79.58,-157.94) 08/29/2021   03:42:09  ( -79.58,-158.00)    1.31                52
 08/31/2021   18:20:16   ( -75.94, -34.08) 08/31/2021   18:19:02  ( -76.14, -35.16)   37.15                74
 08/31/2021   19:08:23   (  79.42, 149.14) 08/31/2021   19:08:25  (  79.42, 149.09)    1.05                 2
 09/03/2021   10:35:32   ( -79.19,  95.88) 09/03/2021   10:34:44  ( -79.18,  95.76)    2.66                48
 09/03/2021   11:24:48   (  79.56, -94.00) 09/03/2021   11:25:17  (  79.56, -93.93)    1.32                29
 09/06/2021   02:51:55   ( -79.37,-147.07) 09/06/2021   02:51:34  ( -79.37,-147.05)    0.26                21
 09/06/2021   03:41:15   (  79.58,  22.04) 09/06/2021   03:42:12  (  79.57,  21.94)    2.26                57
 09/08/2021   18:19:00   (  79.21, 160.18) 09/08/2021   18:17:49  (  79.22, 160.26)    1.73                71