Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 4 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)
 04/04/2017   03:41:46   (  79.35,  20.31) 04/04/2017   03:41:16  (  79.34,  20.18)    2.79                30
 04/04/2017   04:31:06   ( -79.63,-170.15) 04/04/2017   04:31:53  ( -79.63,-170.13)    0.52                47
 04/06/2017   19:58:12   (  79.45, 136.83) 04/06/2017   19:58:09  (  79.45, 136.78)    0.98                 3
 04/06/2017   20:47:17   ( -80.24, -49.29) 04/06/2017   20:48:31  ( -80.17, -49.05)    9.23                74
 04/09/2017   11:25:19   ( -79.28,  83.94) 04/09/2017   11:24:26  ( -79.28,  83.90)    0.77                53
 04/09/2017   12:14:37   (  79.57,-106.43) 04/09/2017   12:15:01  (  79.58,-106.35)    1.74                24
 04/12/2017   03:41:43   ( -79.44,-159.13) 04/12/2017   03:41:17  ( -79.45,-159.00)    2.71                26
 04/12/2017   04:31:04   (  79.61,   9.75) 04/12/2017   04:31:56  (  79.61,   9.69)    1.19                52
 04/14/2017   19:09:58   (  76.10, 133.96) 04/14/2017   19:08:45  (  76.28, 132.76)   37.47                73