Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 5 30.  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)
 06/02/2018   03:41:55   ( -79.39,-159.36) 06/02/2018   03:41:30  ( -79.39,-159.46)    2.21                25
 06/02/2018   04:31:13   (  79.69,  10.35) 06/02/2018   04:32:05  (  79.70,  10.48)    2.83                52
 06/04/2018   19:10:04   (  76.37, 134.90) 06/04/2018   19:08:51  (  76.54, 133.76)   35.31                73
 06/04/2018   19:58:20   ( -79.50, -42.78) 06/04/2018   19:58:22  ( -79.49, -42.85)    1.77                 2
 06/07/2018   11:25:25   (  79.31, -95.77) 06/07/2018   11:24:37  (  79.31, -95.81)    0.72                48
 06/07/2018   12:14:46   ( -79.56,  73.53) 06/07/2018   12:15:15  ( -79.56,  73.49)    0.82                29
 06/10/2018   03:41:48   (  79.44,  20.98) 06/10/2018   03:41:27  (  79.45,  21.03)    1.11                21
 06/10/2018   04:31:09   ( -79.69,-169.66) 06/10/2018   04:32:05  ( -79.68,-169.62)    0.77                56
 06/12/2018   19:08:56   ( -79.20, -32.34) 06/12/2018   19:07:45  ( -79.19, -32.47)    3.07                71