Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2020 1 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)
 01/23/2020   03:41:30   (  79.51,  21.60) 01/23/2020   03:40:53  (  79.51,  21.48)    2.48                37
 01/23/2020   04:30:50   ( -79.78,-168.82) 01/23/2020   04:31:30  ( -79.78,-168.83)    0.25                40
 01/25/2020   19:57:56   (  79.61, 138.12) 01/25/2020   19:57:42  (  79.60, 138.05)    1.47                14
 01/25/2020   20:47:16   ( -79.87, -52.25) 01/25/2020   20:48:19  ( -79.87, -52.20)    0.86                63
 01/28/2020   11:25:05   ( -79.40,  84.95) 01/28/2020   11:23:57  ( -79.39,  84.80)    3.09                68
 01/28/2020   12:14:22   (  79.73,-105.09) 01/28/2020   12:14:31  (  79.73,-105.09)    0.19                 9
 01/31/2020   03:41:31   ( -79.53,-158.31) 01/31/2020   03:40:46  ( -79.52,-158.38)    1.49                45
 01/31/2020   04:30:49   (  79.81,  11.42) 01/31/2020   04:31:21  (  79.81,  11.51)    1.84                32
 02/02/2020   19:57:57   ( -79.65, -41.58) 02/02/2020   19:57:35  ( -79.65, -41.55)    0.53                22