Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 7 14.  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)
 07/14/2021   19:08:22   (  79.35, 148.68) 07/14/2021   19:07:58  (  79.35, 148.66)    0.45                24
 07/14/2021   19:57:41   ( -79.66, -41.56) 07/14/2021   19:58:34  ( -79.66, -41.49)    1.39                53
 07/17/2021   10:35:43   ( -78.65,  92.74) 07/17/2021   10:34:29  ( -78.70,  92.53)    6.90                74
 07/17/2021   11:24:48   (  79.48, -94.55) 07/17/2021   11:24:51  (  79.49, -94.45)    2.07                 3
 07/20/2021   02:51:56   ( -79.31,-147.46) 07/20/2021   02:51:09  ( -79.31,-147.43)    0.53                47
 07/20/2021   03:41:16   (  79.54,  21.69) 07/20/2021   03:41:47  (  79.53,  21.62)    1.42                31
 07/22/2021   19:08:24   ( -79.33, -31.49) 07/22/2021   19:08:05  ( -79.32, -31.62)    2.75                19
 07/22/2021   19:57:41   (  79.66, 138.44) 07/22/2021   19:58:39  (  79.66, 138.54)    2.02                58
 07/25/2021   10:35:29   (  79.20, -84.05) 07/25/2021   10:34:20  (  79.20, -84.05)    0.08                69
 07/25/2021   11:24:49   ( -79.49,  85.47) 07/25/2021   11:24:57  ( -79.49,  85.52)    0.91                 8
 07/28/2021   02:51:57   (  79.24,  32.10) 07/28/2021   02:51:16  (  79.24,  32.00)    2.07                41