Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 21.  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)
 12/21/2021   18:19:06   ( -79.36, -18.86) 12/21/2021   18:18:10  ( -79.35, -18.96)    2.12                56
 12/21/2021   19:08:24   (  79.66, 150.86) 12/21/2021   19:08:45  (  79.66, 150.93)    1.74                21
 12/24/2021   10:35:30   ( -79.54,  98.26) 12/24/2021   10:34:56  ( -79.55,  98.40)    3.00                34
 12/24/2021   11:24:51   (  79.72, -92.79) 12/24/2021   11:25:35  (  79.72, -92.77)    0.53                44
 12/27/2021   02:51:59   ( -79.52,-146.01) 12/27/2021   02:51:49  ( -79.51,-146.14)    2.82                10
 12/27/2021   03:41:17   (  79.80,  23.74) 12/27/2021   03:42:24  (  79.81,  23.79)    1.09                67
 12/29/2021   18:19:04   (  79.35, 161.13) 12/29/2021   18:18:00  (  79.35, 161.05)    1.81                64
 12/29/2021   19:08:24   ( -79.63, -29.31) 12/29/2021   19:08:37  ( -79.63, -29.33)    0.50                13
 01/01/2022   10:35:27   (  79.49, -82.04) 01/01/2022   10:34:46  (  79.50, -81.94)    2.15                41