Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 3 26.  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)
 03/27/2018   11:27:24   ( -74.70,  66.02) 03/27/2018   11:26:11  ( -74.95,  64.30)   57.70                73
 03/27/2018   12:14:59   (  79.69,-105.41) 03/27/2018   12:15:00  (  79.69,-105.40)    0.25                 1
 03/30/2018   03:42:05   ( -79.56,-158.12) 03/30/2018   03:41:16  ( -79.56,-158.09)    0.60                49
 03/30/2018   04:31:26   (  79.74,  10.82) 03/30/2018   04:31:55  (  79.73,  10.69)    2.92                29
 04/01/2018   19:58:32   ( -79.60, -41.93) 04/01/2018   19:58:11  ( -79.60, -42.01)    1.70                21
 04/01/2018   20:47:51   (  79.85, 127.58) 04/01/2018   20:48:47  (  79.85, 127.63)    0.99                56
 04/04/2018   11:25:37   (  79.44, -94.79) 04/04/2018   11:24:26  (  79.44, -94.83)    0.70                71
 04/04/2018   12:14:56   ( -79.75,  75.05) 04/04/2018   12:15:02  ( -79.76,  75.19)    3.04                 6
 04/07/2018   03:42:02   (  79.52,  21.58) 04/07/2018   03:41:19  (  79.51,  21.48)    2.13                43
 04/07/2018   04:31:21   ( -79.82,-168.55) 04/07/2018   04:31:55  ( -79.82,-168.45)    1.98                34
 04/09/2018   19:58:28   (  79.58, 137.93) 04/09/2018   19:58:13  (  79.57, 137.79)    2.98                15