Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 8 20.  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)
 08/21/2021   02:51:56   ( -79.37,-147.08) 08/21/2021   02:51:26  ( -79.38,-146.98)    2.17                30
 08/21/2021   03:41:16   (  79.59,  22.08) 08/21/2021   03:42:04  (  79.59,  22.09)    0.30                48
 08/23/2021   19:08:22   ( -79.49, -30.36) 08/23/2021   19:08:19  ( -79.50, -30.23)    2.61                 3
 08/23/2021   19:56:47   (  81.32, 156.83) 08/23/2021   19:58:00  (  81.04, 157.64)   33.61                73
 08/26/2021   10:35:29   (  79.29, -83.46) 08/26/2021   10:34:36  (  79.30, -83.37)    2.12                53
 08/26/2021   11:24:52   ( -79.46,  85.31) 08/26/2021   11:25:17  ( -79.45,  85.17)    3.00                25
 08/29/2021   02:51:55   (  79.41,  33.19) 08/29/2021   02:51:29  (  79.42,  33.33)    3.12                26
 08/29/2021   03:41:18   ( -79.58,-158.01) 08/29/2021   03:42:10  ( -79.57,-158.09)    1.87                52
 08/31/2021   18:20:23   ( -75.58, -35.13) 08/31/2021   18:19:09  ( -75.81, -36.30)   40.83                74