Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 9 9.  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)
 09/11/2021   10:35:36   (  79.26, -83.69) 09/11/2021   10:34:44  (  79.26, -83.63)    1.37                52
 09/11/2021   11:24:58   ( -79.46,  85.30) 09/11/2021   11:25:24  ( -79.45,  85.17)    2.71                26
 09/14/2021   02:52:06   (  79.28,  32.34) 09/14/2021   02:51:40  (  79.27,  32.20)    3.04                26
 09/14/2021   03:41:26   ( -79.56,-158.13) 09/14/2021   03:42:17  ( -79.56,-158.16)    0.62                51
 09/16/2021   19:08:33   (  79.42, 149.11) 09/16/2021   19:08:32  (  79.41, 149.09)    0.50                 1
 09/16/2021   19:56:17   ( -81.81,  -7.18) 09/16/2021   19:57:30  ( -81.30,  -6.76)   56.61                73
 09/19/2021   10:35:41   ( -79.25,  96.24) 09/19/2021   10:34:48  ( -79.25,  96.24)    0.27                53
 09/19/2021   11:24:59   (  79.54, -94.14) 09/19/2021   11:25:23  (  79.55, -94.01)    2.63                24
 09/22/2021   02:52:11   ( -79.26,-147.82) 09/22/2021   02:51:44  ( -79.25,-147.94)    2.76                27