Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 19.  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   (  79.55,  34.20) 12/19/2021   02:51:57  (  79.54,  34.12)    1.62                 1
 12/19/2021   03:40:02   ( -81.68,-129.61) 12/19/2021   03:41:16  ( -81.29,-129.28)   44.06                74
 12/21/2021   18:19:07   ( -79.33, -19.04) 12/21/2021   18:18:11  ( -79.32, -19.16)    2.57                56
 12/21/2021   19:08:24   (  79.67, 150.93) 12/21/2021   19:08:45  (  79.67, 150.99)    1.29                21
 12/24/2021   10:35:32   ( -79.48,  97.87) 12/24/2021   10:34:58  ( -79.49,  97.94)    1.59                34
 12/24/2021   11:24:52   (  79.70, -92.94) 12/24/2021   11:25:36  (  79.70, -92.98)    0.90                44
 12/27/2021   02:51:59   ( -79.55,-145.79) 12/27/2021   02:51:48  ( -79.55,-145.76)    0.71                11
 12/27/2021   03:41:19   (  79.76,  23.41) 12/27/2021   03:42:26  (  79.76,  23.32)    1.81                67
 12/29/2021   18:19:04   (  79.36, 161.18) 12/29/2021   18:17:59  (  79.36, 161.17)    0.16                65
 12/29/2021   19:08:24   ( -79.64, -29.25) 12/29/2021   19:08:36  ( -79.64, -29.20)    1.10                12
 01/01/2022   10:35:29   (  79.48, -82.11) 01/01/2022   10:34:47  (  79.49, -82.04)    1.41                42