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   19:08:21   (  79.37, 148.83) 07/14/2021   19:07:57  (  79.37, 148.82)    0.34                24
 07/14/2021   19:57:41   ( -79.64, -41.66) 07/14/2021   19:58:34  ( -79.65, -41.60)    1.37                53
 07/17/2021   10:35:44   ( -78.59,  92.43) 07/17/2021   10:34:30  ( -78.65,  92.20)    7.70                74
 07/17/2021   11:24:47   (  79.51, -94.39) 07/17/2021   11:24:50  (  79.51, -94.30)    1.84                 3
 07/20/2021   02:51:56   ( -79.30,-147.55) 07/20/2021   02:51:09  ( -79.30,-147.56)    0.25                47
 07/20/2021   03:41:16   (  79.52,  21.58) 07/20/2021   03:41:47  (  79.51,  21.48)    2.14                31
 07/22/2021   19:08:22   ( -79.43, -30.82) 07/22/2021   19:08:02  ( -79.43, -30.72)    2.20                20
 07/22/2021   19:57:42   (  79.64, 138.34) 07/22/2021   19:58:40  (  79.64, 138.36)    0.55                58
 07/25/2021   10:35:31   (  79.15, -84.39) 07/25/2021   10:34:22  (  79.14, -84.49)    2.35                69