Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 9 29.  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)
 09/30/2021   02:52:12   (  79.28,  32.37) 09/30/2021   02:51:45  (  79.28,  32.28)    2.04                27
 09/30/2021   03:41:31   ( -79.59,-157.87) 09/30/2021   03:42:21  ( -79.60,-157.81)    1.16                50
 10/02/2021   19:08:38   (  79.38, 148.88) 10/02/2021   19:08:37  (  79.38, 148.82)    1.48                 1
 10/02/2021   19:56:25   ( -81.79,  -8.48) 10/02/2021   19:57:38  ( -81.30,  -7.98)   54.84                73
 10/05/2021   10:35:47   ( -79.17,  95.74) 10/05/2021   10:34:55  ( -79.16,  95.63)    2.34                52
 10/05/2021   11:25:04   (  79.51, -94.38) 10/05/2021   11:25:29  (  79.50, -94.38)    0.19                25
 10/08/2021   02:52:12   ( -79.33,-147.35) 10/08/2021   02:51:46  ( -79.33,-147.35)    0.20                26
 10/08/2021   03:41:30   (  79.62,  22.32) 10/08/2021   03:42:21  (  79.63,  22.44)    2.33                51
 10/10/2021   18:21:55   (  71.50, 136.01) 10/10/2021   18:20:42  (  71.85, 133.98)   80.27                73
 10/10/2021   19:08:37   ( -79.48, -30.45) 10/10/2021   19:08:37  ( -79.48, -30.31)    2.97                 0