Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 16.  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)
 07/17/2018   11:25:23   ( -79.28,  84.00) 07/17/2018   11:24:30  ( -79.28,  84.07)    1.54                53
 07/17/2018   12:14:43   (  79.50,-106.88) 07/17/2018   12:15:08  (  79.50,-106.90)    0.50                25
 07/20/2018   03:41:50   ( -79.34,-159.72) 07/20/2018   03:41:23  ( -79.33,-159.76)    0.89                27
 07/20/2018   04:31:10   (  79.56,   9.40) 07/20/2018   04:32:01  (  79.54,   9.26)    3.14                51
 07/22/2018   19:58:17   ( -79.39, -43.47) 07/22/2018   19:58:16  ( -79.38, -43.60)    3.02                 1
 07/22/2018   20:45:51   (  81.84, 164.32) 07/22/2018   20:47:04  (  81.28, 164.35)   62.62                73
 07/25/2018   11:25:22   (  79.24, -96.25) 07/25/2018   11:24:29  (  79.24, -96.27)    0.45                53
 07/25/2018   12:14:42   ( -79.52,  73.29) 07/25/2018   12:15:06  ( -79.53,  73.36)    1.56                24
 07/28/2018   03:41:48   (  79.29,  19.95) 07/28/2018   03:41:21  (  79.28,  19.84)    2.39                27