Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2016 5 12.  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)
 05/13/2016   18:19:17   ( -79.14, -20.45) 05/13/2016   18:18:11  ( -79.15, -20.32)    2.91                66
 05/13/2016   19:08:37   (  79.37, 148.67) 05/13/2016   19:08:49  (  79.37, 148.72)    1.13                12
 05/16/2016   10:35:43   ( -79.22,  95.95) 05/16/2016   10:35:04  ( -79.23,  96.04)    1.78                39
 05/16/2016   11:25:03   (  79.45, -94.92) 05/16/2016   11:25:42  (  79.45, -94.91)    0.23                39
 05/19/2016   02:52:08   ( -79.29,-147.70) 05/19/2016   02:51:56  ( -79.30,-147.63)    1.61                12
 05/19/2016   03:41:27   (  79.56,  21.70) 05/19/2016   03:42:33  (  79.55,  21.71)    0.25                66
 05/21/2016   18:19:13   (  79.11, 159.39) 05/21/2016   18:18:11  (  79.12, 159.47)    1.92                62
 05/21/2016   19:08:32   ( -79.43, -30.89) 05/21/2016   19:08:47  ( -79.44, -30.77)    2.43                15
 05/24/2016   10:35:40   (  79.13, -84.64) 05/24/2016   10:35:06  (  79.12, -84.76)    2.70                34