Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2019 9 11.  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)
 09/14/2019   10:35:30   ( -79.06,  95.06) 09/14/2019   10:34:30  ( -79.05,  94.94)    2.80                60
 09/14/2019   11:24:48   (  79.37, -95.34) 09/14/2019   11:25:05  (  79.37, -95.37)    0.65                17
 09/17/2019   02:51:54   ( -79.19,-148.24) 09/17/2019   02:51:20  ( -79.20,-148.24)    0.27                34
 09/17/2019   03:41:11   (  79.53,  21.65) 09/17/2019   03:41:54  (  79.54,  21.78)    2.59                43
 09/19/2019   19:08:21   ( -79.24, -32.04) 09/19/2019   19:08:14  ( -79.23, -32.19)    3.09                 7
 09/19/2019   19:57:39   (  79.54, 137.58) 09/19/2019   19:58:49  (  79.54, 137.56)    0.39                70
 09/22/2019   10:35:26   (  79.07, -84.85) 09/22/2019   10:34:28  (  79.07, -84.94)    1.96                58
 09/22/2019   11:24:45   ( -79.40,  84.89) 09/22/2019   11:25:04  ( -79.40,  84.91)    0.49                19
 09/25/2019   02:51:49   (  79.27,  32.27) 09/25/2019   02:51:17  (  79.28,  32.37)    2.16                32