Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 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)
 12/29/2021   18:19:03   (  79.36, 161.19) 12/29/2021   18:17:59  (  79.36, 161.18)    0.22                64
 12/29/2021   19:08:22   ( -79.67, -29.02) 12/29/2021   19:08:35  ( -79.67, -28.95)    1.24                13
 01/01/2022   10:35:28   (  79.46, -82.29) 01/01/2022   10:34:48  (  79.45, -82.34)    1.34                40
 01/01/2022   11:24:48   ( -79.72,  87.28) 01/01/2022   11:25:25  ( -79.72,  87.29)    0.31                37
 01/04/2022   02:51:53   (  79.53,  34.14) 01/04/2022   02:51:37  (  79.53,  34.12)    0.35                16
 01/04/2022   03:41:13   ( -79.80,-156.26) 01/04/2022   03:42:14  ( -79.80,-156.19)    1.38                61
 01/06/2022   18:18:58   ( -79.34, -18.92) 01/06/2022   18:17:49  ( -79.34, -18.96)    0.69                69
 01/06/2022   19:08:15   (  79.67, 151.00) 01/06/2022   19:08:23  (  79.68, 151.13)    2.83                 8
 01/09/2022   10:35:22   ( -79.43,  97.55) 01/09/2022   10:34:38  ( -79.42,  97.47)    1.75                44