Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 12 4.  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)
 12/05/2017   10:36:46   (  76.37, -96.81) 12/05/2017   10:35:33  (  76.55, -98.01)   36.97                73
 12/05/2017   11:24:56   ( -79.70,  87.08) 12/05/2017   11:24:58  ( -79.70,  87.11)    0.53                 2
 12/08/2017   02:52:05   (  79.50,  33.86) 12/08/2017   02:51:13  (  79.49,  33.79)    1.54                52
 12/08/2017   03:41:24   ( -79.80,-156.29) 12/08/2017   03:41:49  ( -79.80,-156.20)    1.87                25
 12/10/2017   19:08:33   (  79.59, 150.41) 12/10/2017   19:08:04  (  79.60, 150.42)    0.26                29
 12/10/2017   19:57:55   ( -79.79, -40.53) 12/10/2017   19:58:44  ( -79.78, -40.65)    2.61                49
 12/13/2017   11:25:00   (  79.72, -92.78) 12/13/2017   11:24:54  (  79.73, -92.66)    2.62                 6
 12/13/2017   12:14:23   ( -79.87,  76.03) 12/13/2017   12:15:35  ( -79.87,  76.02)    0.23                72
 12/16/2017   02:52:10   ( -79.48,-146.30) 12/16/2017   02:51:11  ( -79.47,-146.40)    2.20                59