Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 3.  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)
 09/03/2019   19:08:23   ( -79.34, -31.46) 09/03/2019   19:08:12  ( -79.34, -31.44)    0.55                11
 09/03/2019   19:57:42   (  79.60, 138.00) 09/03/2019   19:58:48  (  79.61, 138.11)    2.47                66
 09/06/2019   10:35:30   (  79.08, -84.83) 09/06/2019   10:34:28  (  79.08, -84.89)    1.36                62
 09/06/2019   11:24:48   ( -79.44,  85.12) 09/06/2019   11:25:03  ( -79.45,  85.21)    2.03                15
 09/09/2019   02:51:55   (  79.22,  31.93) 09/09/2019   02:51:19  (  79.22,  31.96)    0.68                36
 09/09/2019   03:41:17   ( -79.43,-159.10) 09/09/2019   03:41:59  ( -79.42,-159.22)    2.42                42
 09/11/2019   19:08:20   (  79.36, 148.68) 09/11/2019   19:08:10  (  79.37, 148.83)    3.20                10
 09/11/2019   19:57:42   ( -79.56, -42.30) 09/11/2019   19:58:50  ( -79.56, -42.30)    0.07                68
 09/14/2019   10:35:30   ( -79.07,  95.10) 09/14/2019   10:34:30  ( -79.06,  94.98)    2.64                60
 09/14/2019   11:24:47   (  79.41, -95.09) 09/14/2019   11:25:04  (  79.41, -95.10)    0.33                17
 09/17/2019   02:51:53   ( -79.24,-147.97) 09/17/2019   02:51:19  ( -79.24,-147.94)    0.59                34