Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 1 7.  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)
 01/09/2021   03:41:21   (  79.60,  22.13) 01/09/2021   03:41:05  (  79.60,  22.15)    0.50                16
 01/09/2021   04:30:43   ( -79.79,-168.81) 01/09/2021   04:31:45  ( -79.78,-168.96)    3.12                62
 01/11/2021   19:08:29   ( -79.39, -31.09) 01/11/2021   19:07:23  ( -79.38, -31.21)    2.53                66
 01/11/2021   19:57:47   (  79.68, 138.60) 01/11/2021   19:57:58  (  79.68, 138.62)    0.44                11
 01/14/2021   11:24:53   ( -79.50,  85.59) 01/14/2021   11:24:14  ( -79.50,  85.50)    2.06                39
 01/14/2021   12:14:11   (  79.79,-104.69) 01/14/2021   12:14:49  (  79.79,-104.64)    0.98                38
 01/17/2021   03:41:18   ( -79.61,-157.74) 01/17/2021   03:41:06  ( -79.61,-157.79)    1.00                12
 01/17/2021   04:30:37   (  79.86,  11.73) 01/17/2021   04:31:42  (  79.86,  11.83)    2.08                65
 01/19/2021   19:08:24   (  79.40, 149.02) 01/19/2021   19:07:22  (  79.39, 148.92)    2.21                62