Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 11.  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)
 07/12/2021   02:51:55   (  79.25,  32.15) 07/12/2021   02:51:04  (  79.24,  32.06)    2.13                51
 07/12/2021   03:41:15   ( -79.53,-158.38) 07/12/2021   03:41:41  ( -79.53,-158.40)    0.41                26
 07/14/2021   19:08:21   (  79.39, 148.92) 07/14/2021   19:07:57  (  79.39, 148.93)    0.34                24
 07/14/2021   19:57:41   ( -79.66, -41.55) 07/14/2021   19:58:34  ( -79.66, -41.46)    1.94                53
 07/17/2021   10:35:35   ( -78.98,  94.58) 07/17/2021   10:34:21  ( -79.00,  94.49)    2.85                74
 07/17/2021   11:24:49   (  79.44, -94.85) 07/17/2021   11:24:53  (  79.43, -94.98)    2.90                 4
 07/20/2021   02:51:55   ( -79.34,-147.26) 07/20/2021   02:51:08  ( -79.35,-147.13)    2.79                47
 07/20/2021   03:41:15   (  79.56,  21.88) 07/20/2021   03:41:46  (  79.57,  21.92)    1.02                31
 07/22/2021   19:08:22   ( -79.39, -31.08) 07/22/2021   19:08:03  ( -79.39, -31.05)    0.80                19