Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 8 20.  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)
 08/23/2016   02:51:44   ( -79.23,-148.06) 08/23/2016   02:51:27  ( -79.23,-148.05)    0.16                17
 08/23/2016   03:41:04   (  79.46,  21.06) 08/23/2016   03:42:05  (  79.44,  20.92)    3.08                61
 08/25/2016   18:18:51   (  78.98, 158.67) 08/25/2016   18:17:42  (  78.98, 158.65)    0.40                69
 08/25/2016   19:08:09   ( -79.35, -31.39) 08/25/2016   19:08:17  ( -79.35, -31.33)    1.31                 8
 08/28/2016   10:35:14   (  79.14, -84.51) 08/28/2016   10:34:30  (  79.15, -84.43)    1.82                44
 08/28/2016   11:24:36   ( -79.35,  84.47) 08/28/2016   11:25:10  ( -79.34,  84.34)    3.05                34
 08/31/2016   02:51:41   (  79.17,  31.56) 08/31/2016   02:51:23  (  79.17,  31.49)    1.55                18
 08/31/2016   03:41:00   ( -79.49,-158.67) 08/31/2016   03:41:59  ( -79.49,-158.67)    0.23                59
 09/02/2016   18:18:48   ( -78.97, -21.41) 09/02/2016   18:17:38  ( -78.96, -21.48)    1.69                70