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,  32.54) 08/29/2021   02:51:32  (  79.30,  32.42)    2.73                25
 08/29/2021   03:41:17   ( -79.58,-157.94) 08/29/2021   03:42:09  ( -79.58,-157.99)    1.07                52
 08/31/2021   18:20:09   ( -76.27, -33.03) 08/31/2021   18:18:55  ( -76.46, -34.02)   33.63                74
 08/31/2021   19:08:22   (  79.45, 149.37) 08/31/2021   19:08:24  (  79.45, 149.37)    0.23                 2
 09/03/2021   10:35:30   ( -79.25,  96.29) 09/03/2021   10:34:42  ( -79.25,  96.27)    0.38                48
 09/03/2021   11:24:50   (  79.47, -94.62) 09/03/2021   11:25:20  (  79.46, -94.76)    2.87                30
 09/06/2021   02:51:56   ( -79.30,-147.50) 09/06/2021   02:51:36  ( -79.30,-147.60)    2.14                20
 09/06/2021   03:41:13   (  79.63,  22.40) 09/06/2021   03:42:10  (  79.64,  22.48)    1.77                57
 09/08/2021   18:18:59   (  79.21, 160.16) 09/08/2021   18:17:49  (  79.21, 160.22)    1.50                70
 09/08/2021   19:08:22   ( -79.38, -31.08) 09/08/2021   19:08:30  ( -79.38, -31.21)    2.88                 8
 09/11/2021   10:35:24   (  79.32, -83.24) 09/11/2021   10:34:42  (  79.32, -83.16)    1.57                42