Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 4 12.  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)
 04/12/2021   11:25:06   (  79.35, -95.58) 04/12/2021   11:24:03  (  79.35, -95.49)    2.02                63
 04/12/2021   12:14:26   ( -79.62,  73.94) 04/12/2021   12:14:40  ( -79.63,  74.08)    3.05                14
 04/15/2021   03:41:33   (  79.36,  20.38) 04/15/2021   03:40:56  (  79.35,  20.29)    2.01                37
 04/15/2021   04:30:53   ( -79.63,-170.08) 04/15/2021   04:31:33  ( -79.63,-170.12)    0.92                40
 04/17/2021   19:57:57   (  79.52, 137.35) 04/17/2021   19:57:45  (  79.52, 137.40)    0.95                12
 04/17/2021   20:47:18   ( -79.75, -53.31) 04/17/2021   20:48:23  ( -79.76, -53.21)    2.08                65
 04/20/2021   11:25:05   ( -79.30,  84.16) 04/20/2021   11:24:01  ( -79.31,  84.16)    0.10                64
 04/20/2021   12:14:25   (  79.52,-106.75) 04/20/2021   12:14:39  (  79.52,-106.84)    2.03                14
 04/23/2021   03:41:32   ( -79.34,-159.70) 04/23/2021   03:40:54  ( -79.34,-159.81)    2.31                38
 04/23/2021   04:30:49   (  79.67,  10.20) 04/23/2021   04:31:28  (  79.67,  10.29)    1.99                39
 04/25/2021   19:57:54   ( -79.53, -42.54) 04/25/2021   19:57:41  ( -79.54, -42.43)    2.27                13