Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 7 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)
 07/12/2019   10:36:21   ( -77.16,  85.95) 07/12/2019   10:35:07  ( -77.31,  85.23)   23.88                74
 07/12/2019   11:24:55   (  79.37, -95.34) 07/12/2019   11:24:58  (  79.37, -95.45)    2.48                 3
 07/15/2019   02:52:01   ( -79.25,-147.92) 07/15/2019   02:51:13  ( -79.24,-147.95)    0.59                48
 07/15/2019   03:41:21   (  79.47,  21.17) 07/15/2019   03:41:51  (  79.46,  21.09)    1.80                30
 07/17/2019   19:08:26   ( -79.34, -31.44) 07/17/2019   19:08:05  ( -79.34, -31.41)    0.60                21
 07/17/2019   19:57:45   (  79.59, 137.94) 07/17/2019   19:58:42  (  79.59, 137.91)    0.68                57
 07/20/2019   10:35:31   (  79.18, -84.24) 07/20/2019   10:34:20  (  79.18, -84.17)    1.62                71
 07/20/2019   11:24:51   ( -79.47,  85.29) 07/20/2019   11:24:57  ( -79.47,  85.39)    2.24                 6
 07/23/2019   02:51:59   (  79.18,  31.68) 07/23/2019   02:51:16  (  79.18,  31.55)    2.82                43