Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 3.  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)
 02/04/2018   19:58:25   (  79.73, 139.13) 02/04/2018   19:58:12  (  79.73, 139.11)    0.30                13
 02/04/2018   20:47:46   ( -79.95, -51.51) 02/04/2018   20:48:50  ( -79.95, -51.50)    0.19                64
 02/07/2018   11:25:33   ( -79.56,  86.15) 02/07/2018   11:24:26  ( -79.56,  86.08)    1.44                67
 02/07/2018   12:14:53   (  79.78,-104.63) 02/07/2018   12:15:04  (  79.77,-104.76)    2.64                11
 02/10/2018   03:41:57   ( -79.72,-156.82) 02/10/2018   03:41:13  ( -79.73,-156.69)    2.68                44
 02/10/2018   04:31:18   (  79.89,  12.14) 02/10/2018   04:31:52  (  79.90,  12.23)    1.80                34
 02/12/2018   19:58:25   ( -79.76, -40.62) 02/12/2018   19:58:05  ( -79.76, -40.57)    0.87                20
 02/12/2018   20:47:46   (  79.93, 128.34) 02/12/2018   20:48:44  (  79.93, 128.34)    0.33                58
 02/15/2018   11:25:31   (  79.60, -93.57) 02/15/2018   11:24:18  (  79.60, -93.58)    0.23                73