Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 2 2.  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   (  79.74, 139.19) 02/04/2018   19:58:12  (  79.74, 139.18)    0.20                13
 02/04/2018   20:47:46   ( -79.96, -51.44) 02/04/2018   20:48:50  ( -79.96, -51.43)    0.31                64
 02/07/2018   11:25:32   ( -79.57,  86.21) 02/07/2018   11:24:25  ( -79.57,  86.15)    1.31                67
 02/07/2018   12:14:52   (  79.79,-104.58) 02/07/2018   12:15:03  (  79.78,-104.70)    2.51                11
 02/10/2018   03:41:57   ( -79.73,-156.76) 02/10/2018   03:41:13  ( -79.74,-156.62)    2.92                44
 02/10/2018   04:31:18   (  79.90,  12.20) 02/10/2018   04:31:52  (  79.91,  12.30)    2.03                34
 02/12/2018   19:58:25   ( -79.77, -40.56) 02/12/2018   19:58:05  ( -79.77, -40.50)    1.25                20
 02/12/2018   20:47:46   (  79.94, 128.39) 02/12/2018   20:48:44  (  79.94, 128.41)    0.60                58
 02/15/2018   11:25:31   (  79.61, -93.53) 02/15/2018   11:24:18  (  79.61, -93.50)    0.42                73