Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2020 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)
 12/21/2020   11:24:58   (  79.45, -94.78) 12/21/2020   11:24:11  (  79.45, -94.87)    2.07                47
 12/21/2020   12:14:18   ( -79.72,  74.78) 12/21/2020   12:14:48  ( -79.72,  74.78)    0.13                30
 12/24/2020   03:41:24   (  79.58,  21.94) 12/24/2020   03:41:03  (  79.57,  21.93)    0.34                21
 12/24/2020   04:30:45   ( -79.81,-168.72) 12/24/2020   04:31:41  ( -79.81,-168.63)    1.84                56
 12/26/2020   19:08:33   ( -79.36, -31.30) 12/26/2020   19:07:21  ( -79.36, -31.37)    1.44                72
 12/26/2020   19:57:50   (  79.69, 138.64) 12/26/2020   19:57:55  (  79.69, 138.74)    2.05                 5
 12/29/2020   11:24:58   ( -79.51,  85.61) 12/29/2020   11:24:12  ( -79.52,  85.67)    1.44                46
 12/29/2020   12:14:18   (  79.72,-105.23) 12/29/2020   12:14:50  (  79.72,-105.30)    1.51                32
 01/01/2021   03:41:25   ( -79.54,-158.30) 01/01/2021   03:41:06  ( -79.54,-158.37)    1.52                19