Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 10.  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)
 09/11/2019   19:08:20   (  79.35, 148.65) 09/11/2019   19:08:10  (  79.36, 148.78)    2.99                10
 09/11/2019   19:57:42   ( -79.55, -42.38) 09/11/2019   19:58:50  ( -79.55, -42.38)    0.28                68
 09/14/2019   10:35:30   ( -79.06,  95.05) 09/14/2019   10:34:30  ( -79.05,  94.92)    2.94                60
 09/14/2019   11:24:48   (  79.37, -95.37) 09/14/2019   11:25:05  (  79.37, -95.41)    0.79                17
 09/17/2019   02:51:55   ( -79.19,-148.25) 09/17/2019   02:51:21  ( -79.19,-148.26)    0.33                34
 09/17/2019   03:41:12   (  79.53,  21.63) 09/17/2019   03:41:55  (  79.53,  21.74)    2.24                43
 09/19/2019   19:08:18   ( -79.36, -31.28) 09/19/2019   19:08:10  ( -79.37, -31.16)    2.68                 8
 09/19/2019   19:57:39   (  79.54, 137.58) 09/19/2019   19:58:49  (  79.54, 137.53)    0.92                70
 09/22/2019   10:35:27   (  79.04, -85.08) 09/22/2019   10:34:29  (  79.03, -85.21)    2.92                58