Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 9.  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)
 09/09/2019   02:51:55   (  79.21,  31.89) 09/09/2019   02:51:19  (  79.22,  31.91)    0.61                36
 09/09/2019   03:41:16   ( -79.45,-158.93) 09/09/2019   03:41:58  ( -79.44,-159.03)    2.25                42
 09/11/2019   19:08:20   (  79.35, 148.64) 09/11/2019   19:08:10  (  79.36, 148.77)    3.09                10
 09/11/2019   19:57:41   ( -79.58, -42.12) 09/11/2019   19:58:49  ( -79.58, -42.11)    0.29                68
 09/14/2019   10:35:30   ( -79.06,  95.03) 09/14/2019   10:34:30  ( -79.05,  94.91)    2.61                60
 09/14/2019   11:24:47   (  79.40, -95.13) 09/14/2019   11:25:04  (  79.40, -95.15)    0.40                17
 09/17/2019   02:51:54   ( -79.23,-148.03) 09/17/2019   02:51:20  ( -79.23,-148.00)    0.46                34
 09/17/2019   03:41:12   (  79.53,  21.60) 09/17/2019   03:41:55  (  79.53,  21.74)    3.00                43
 09/19/2019   19:08:20   ( -79.28, -31.83) 09/19/2019   19:08:13  ( -79.27, -31.94)    2.42                 7
 09/19/2019   19:57:38   (  79.57, 137.79) 09/19/2019   19:58:48  (  79.57, 137.81)    0.40                70
 09/22/2019   10:35:25   (  79.11, -84.66) 09/22/2019   10:34:27  (  79.10, -84.70)    0.98                58