Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 4 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)
 04/28/2018   11:25:38   ( -79.36,  84.50) 04/28/2018   11:24:34  ( -79.36,  84.53)    0.62                64
 04/28/2018   12:14:57   (  79.63,-105.99) 04/28/2018   12:15:10  (  79.63,-105.92)    1.48                13
 05/01/2018   03:42:04   ( -79.42,-159.19) 05/01/2018   03:41:28  ( -79.42,-159.25)    1.40                36
 05/01/2018   04:31:24   (  79.65,  10.05) 05/01/2018   04:32:05  (  79.65,  10.03)    0.40                41
 05/03/2018   19:58:30   ( -79.48, -42.91) 05/03/2018   19:58:22  ( -79.47, -43.04)    2.92                 8
 05/03/2018   20:47:50   (  79.71, 126.33) 05/03/2018   20:48:59  (  79.70, 126.25)    1.62                69
 05/06/2018   11:25:35   (  79.30, -95.87) 05/06/2018   11:24:37  (  79.30, -95.96)    2.00                58
 05/06/2018   12:14:53   ( -79.65,  74.14) 05/06/2018   12:15:12  ( -79.65,  74.26)    2.45                19
 05/09/2018   03:41:59   (  79.39,  20.59) 05/09/2018   03:41:29  (  79.38,  20.48)    2.32                30