Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 10 15.  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)
 10/15/2017   19:08:16   ( -79.65, -29.27) 10/15/2017   19:08:14  ( -79.65, -29.18)    1.82                 2
 10/15/2017   19:55:55   (  81.83, 177.55) 10/15/2017   19:57:08  (  81.30, 177.55)   58.96                73
 10/18/2017   10:35:23   (  79.45, -82.41) 10/18/2017   10:34:30  (  79.46, -82.38)    0.92                53
 10/18/2017   11:24:44   ( -79.69,  86.92) 10/18/2017   11:25:08  ( -79.69,  86.95)    0.70                24
 10/21/2017   02:51:49   (  79.56,  34.22) 10/21/2017   02:51:22  (  79.56,  34.26)    0.80                27
 10/21/2017   03:41:10   ( -79.80,-156.39) 10/21/2017   03:42:00  ( -79.80,-156.37)    0.36                50
 10/23/2017   19:08:15   (  79.66, 150.83) 10/23/2017   19:08:14  (  79.66, 150.90)    1.44                 1
 10/23/2017   19:56:11   ( -81.79,  -9.01) 10/23/2017   19:57:25  ( -81.34,  -8.88)   49.89                74
 10/26/2017   10:35:21   ( -79.51,  98.03) 10/26/2017   10:34:28  ( -79.52,  98.14)    2.51                53
 10/26/2017   11:24:40   (  79.75, -92.59) 10/26/2017   11:25:05  (  79.76, -92.46)    2.83                25
 10/29/2017   02:51:49   ( -79.53,-145.98) 10/29/2017   02:51:23  ( -79.52,-146.07)    1.97                26