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   (  79.36, 148.75) 09/11/2019   19:08:10  (  79.37, 148.88)    3.01                10
 09/11/2019   19:57:42   ( -79.56, -42.28) 09/11/2019   19:58:50  ( -79.56, -42.28)    0.10                68
 09/14/2019   10:35:31   ( -79.03,  94.89) 09/14/2019   10:34:31  ( -79.02,  94.76)    2.87                60
 09/14/2019   11:24:48   (  79.38, -95.28) 09/14/2019   11:25:05  (  79.38, -95.31)    0.66                17
 09/17/2019   02:51:54   ( -79.20,-148.17) 09/17/2019   02:51:20  ( -79.21,-148.17)    0.14                34
 09/17/2019   03:41:12   (  79.50,  21.46) 09/17/2019   03:41:55  (  79.51,  21.57)    2.41                43
 09/19/2019   19:08:18   ( -79.37, -31.21) 09/19/2019   19:08:10  ( -79.38, -31.07)    2.92                 8
 09/19/2019   19:57:39   (  79.55, 137.66) 09/19/2019   19:58:49  (  79.55, 137.63)    0.66                70
 09/22/2019   10:35:27   (  79.05, -85.01) 09/22/2019   10:34:29  (  79.04, -85.12)    2.56                58