Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 19.  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)
 03/19/2018   12:15:02   ( -79.69,  74.58) 03/19/2018   12:14:58  ( -79.70,  74.67)    1.95                 4
 03/19/2018   13:04:09   (  80.34,-112.32) 03/19/2018   13:05:23  (  80.26,-112.21)    8.69                74
 03/22/2018   03:42:06   (  79.56,  21.84) 03/22/2018   03:41:12  (  79.56,  21.96)    2.42                54
 03/22/2018   04:31:29   ( -79.72,-169.35) 03/22/2018   04:31:53  ( -79.71,-169.46)    2.16                24
 03/24/2018   19:58:34   (  79.58, 137.86) 03/24/2018   19:58:08  (  79.57, 137.80)    1.28                26
 03/24/2018   20:47:54   ( -79.84, -52.50) 03/24/2018   20:48:45  ( -79.84, -52.45)    0.99                51
 03/27/2018   11:27:10   ( -75.42,  67.93) 03/27/2018   11:25:56  ( -75.69,  66.52)   49.33                74
 03/27/2018   12:14:58   (  79.74,-105.08) 03/27/2018   12:14:59  (  79.74,-104.97)    2.30                 1
 03/30/2018   03:42:07   ( -79.50,-158.58) 03/30/2018   03:41:19  ( -79.49,-158.71)    2.84                48
 03/30/2018   04:31:25   (  79.78,  11.13) 03/30/2018   04:31:54  (  79.78,  11.14)    0.31                29
 04/01/2018   19:58:29   ( -79.68, -41.35) 04/01/2018   19:58:08  ( -79.69, -41.23)    2.62                21