Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 17.  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)
 12/19/2021   02:51:58   (  79.56,  34.26) 12/19/2021   02:51:57  (  79.55,  34.19)    1.67                 1
 12/19/2021   03:40:03   ( -81.68,-129.90) 12/19/2021   03:41:17  ( -81.29,-129.55)   43.66                74
 12/21/2021   18:19:08   ( -79.31, -19.20) 12/21/2021   18:18:12  ( -79.30, -19.34)    3.05                56
 12/21/2021   19:08:25   (  79.64, 150.75) 12/21/2021   19:08:46  (  79.65, 150.78)    0.89                21
 12/24/2021   10:35:33   ( -79.47,  97.74) 12/24/2021   10:34:59  ( -79.47,  97.75)    0.48                34
 12/24/2021   11:24:53   (  79.68, -93.09) 12/24/2021   11:25:37  (  79.68, -93.18)    2.01                44
 12/27/2021   02:51:59   ( -79.54,-145.88) 12/27/2021   02:51:48  ( -79.53,-145.95)    1.37                11
 12/27/2021   03:41:17   (  79.82,  23.85) 12/27/2021   03:42:23  (  79.83,  23.98)    2.58                66
 12/29/2021   18:19:03   (  79.43, 161.65) 12/29/2021   18:17:57  (  79.44, 161.79)    3.03                66