Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 12 20.  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   ( -79.35, -18.88) 12/21/2021   18:18:10  ( -79.35, -18.97)    1.97                56
 12/21/2021   19:08:23   (  79.69, 151.10) 12/21/2021   19:08:44  (  79.69, 151.19)    1.89                21
 12/24/2021   10:35:33   ( -79.42,  97.45) 12/24/2021   10:35:00  ( -79.41,  97.31)    3.08                33
 12/24/2021   11:24:51   (  79.71, -92.83) 12/24/2021   11:25:35  (  79.72, -92.79)    0.84                44
 12/27/2021   02:51:59   ( -79.51,-146.04) 12/27/2021   02:51:49  ( -79.51,-146.15)    2.39                10
 12/27/2021   03:41:17   (  79.80,  23.71) 12/27/2021   03:42:24  (  79.80,  23.78)    1.53                67
 12/29/2021   18:19:04   (  79.35, 161.10) 12/29/2021   18:18:00  (  79.35, 161.04)    1.19                64
 12/29/2021   19:08:24   ( -79.63, -29.34) 12/29/2021   19:08:37  ( -79.63, -29.34)    0.16                13
 01/01/2022   10:35:26   (  79.53, -81.81) 01/01/2022   10:34:45  (  79.53, -81.67)    2.95                41