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, -96.80) 12/05/2017   10:35:33  (  76.55, -98.00)   36.96                73
 12/05/2017   11:24:56   ( -79.70,  87.09) 12/05/2017   11:24:58  ( -79.70,  87.12)    0.58                 2
 12/08/2017   02:52:05   (  79.50,  33.87) 12/08/2017   02:51:13  (  79.49,  33.80)    1.48                52
 12/08/2017   03:41:24   ( -79.80,-156.29) 12/08/2017   03:41:49  ( -79.80,-156.19)    1.97                25
 12/10/2017   19:08:33   (  79.59, 150.42) 12/10/2017   19:08:04  (  79.60, 150.44)    0.41                29
 12/10/2017   19:57:55   ( -79.79, -40.53) 12/10/2017   19:58:44  ( -79.78, -40.64)    2.42                49
 12/13/2017   11:24:59   (  79.72, -92.78) 12/13/2017   11:24:53  (  79.73, -92.64)    2.87                 6
 12/13/2017   12:14:21   ( -79.91,  76.31) 12/13/2017   12:15:33  ( -79.90,  76.33)    0.38                72
 12/16/2017   02:52:10   ( -79.48,-146.30) 12/16/2017   02:51:11  ( -79.47,-146.39)    1.80                59
 12/16/2017   03:41:29   (  79.73,  23.17) 12/16/2017   03:41:47  (  79.73,  23.15)    0.43                18
 12/18/2017   19:08:36   ( -79.63, -29.33) 12/18/2017   19:08:00  ( -79.64, -29.24)    1.97                36