Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 5 14.  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)
 05/17/2018   03:42:01   ( -79.40,-159.33) 05/17/2018   03:41:30  ( -79.39,-159.45)    2.55                31
 05/17/2018   04:31:20   (  79.67,  10.17) 05/17/2018   04:32:06  (  79.66,  10.17)    0.06                46
 05/19/2018   19:58:26   ( -79.53, -42.58) 05/19/2018   19:58:21  ( -79.53, -42.50)    1.72                 5
 05/19/2018   20:47:47   (  79.71, 126.39) 05/19/2018   20:49:00  (  79.71, 126.32)    1.62                73
 05/22/2018   11:25:33   (  79.30, -95.87) 05/22/2018   11:24:38  (  79.29, -95.97)    2.10                55
 05/22/2018   12:14:53   ( -79.57,  73.63) 05/22/2018   12:15:15  ( -79.58,  73.63)    0.26                22
 05/25/2018   03:41:58   (  79.38,  20.52) 05/25/2018   03:41:30  (  79.37,  20.40)    2.67                28
 05/25/2018   04:31:18   ( -79.65,-169.92) 05/25/2018   04:32:07  ( -79.65,-169.96)    0.85                49
 05/27/2018   19:58:24   (  79.45, 136.90) 05/27/2018   19:58:23  (  79.45, 136.77)    2.68                 1