Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 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)
 07/20/2021   02:51:56   ( -79.30,-147.52) 07/20/2021   02:51:09  ( -79.30,-147.51)    0.33                47
 07/20/2021   03:41:16   (  79.53,  21.66) 07/20/2021   03:41:47  (  79.52,  21.58)    1.77                31
 07/22/2021   19:08:25   ( -79.32, -31.56) 07/22/2021   19:08:06  ( -79.31, -31.70)    3.04                19
 07/22/2021   19:57:41   (  79.65, 138.41) 07/22/2021   19:58:39  (  79.66, 138.48)    1.58                58
 07/25/2021   10:35:29   (  79.20, -84.08) 07/25/2021   10:34:20  (  79.20, -84.10)    0.44                69
 07/25/2021   11:24:49   ( -79.48,  85.42) 07/25/2021   11:24:57  ( -79.48,  85.44)    0.51                 8
 07/28/2021   02:51:57   (  79.24,  32.07) 07/28/2021   02:51:16  (  79.23,  31.95)    2.66                41
 07/28/2021   03:41:17   ( -79.52,-158.40) 07/28/2021   03:41:53  ( -79.52,-158.49)    1.83                36
 07/30/2021   19:08:21   (  79.43, 149.23) 07/30/2021   19:08:07  (  79.44, 149.32)    2.00                14
 07/30/2021   19:57:42   ( -79.67, -41.43) 07/30/2021   19:58:45  ( -79.68, -41.30)    2.76                63
 08/02/2021   10:35:29   ( -79.25,  96.28) 08/02/2021   10:34:25  ( -79.26,  96.37)    2.00                64