Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2021 8 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)
 08/21/2021   02:51:56   ( -79.39,-146.93) 08/21/2021   02:51:26  ( -79.40,-146.83)    2.15                30
 08/21/2021   03:41:16   (  79.61,  22.23) 08/21/2021   03:42:04  (  79.61,  22.25)    0.40                48
 08/23/2021   19:08:23   ( -79.48, -30.46) 08/23/2021   19:08:20  ( -79.49, -30.34)    2.61                 3
 08/23/2021   19:56:46   (  81.33, 157.06) 08/23/2021   19:57:59  (  81.05, 157.86)   33.95                73
 08/26/2021   10:35:29   (  79.28, -83.56) 08/26/2021   10:34:36  (  79.28, -83.47)    2.25                53
 08/26/2021   11:24:52   ( -79.45,  85.21) 08/26/2021   11:25:17  ( -79.44,  85.07)    2.93                25
 08/29/2021   02:51:58   (  79.28,  32.33) 08/29/2021   02:51:33  (  79.27,  32.19)    3.04                25
 08/29/2021   03:41:18   ( -79.56,-158.10) 08/29/2021   03:42:10  ( -79.56,-158.18)    1.66                52
 08/31/2021   18:20:21   ( -75.71, -34.74) 08/31/2021   18:19:07  ( -75.93, -35.89)   39.45                74