Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2020 12 18.  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)
 12/18/2020   19:08:30   (  79.44, 149.21) 12/18/2020   19:07:16  (  79.45, 149.35)    3.11                74
 12/18/2020   19:57:52   ( -79.63, -41.78) 12/18/2020   19:57:56  ( -79.63, -41.84)    1.42                 4
 12/21/2020   11:24:59   (  79.45, -94.82) 12/21/2020   11:24:12  (  79.44, -94.92)    2.05                47
 12/21/2020   12:14:19   ( -79.72,  74.75) 12/21/2020   12:14:49  ( -79.72,  74.74)    0.08                30
 12/24/2020   03:41:24   (  79.57,  21.89) 12/24/2020   03:41:03  (  79.57,  21.88)    0.27                21
 12/24/2020   04:30:45   ( -79.80,-168.76) 12/24/2020   04:31:41  ( -79.81,-168.67)    1.86                56
 12/26/2020   19:08:33   ( -79.35, -31.34) 12/26/2020   19:07:21  ( -79.35, -31.41)    1.42                72
 12/26/2020   19:57:50   (  79.68, 138.59) 12/26/2020   19:57:55  (  79.69, 138.69)    2.10                 5
 12/29/2020   11:24:58   ( -79.51,  85.56) 12/29/2020   11:24:12  ( -79.51,  85.63)    1.53                46