Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 2 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)
 02/17/2017   19:08:36   ( -79.54, -29.91) 02/17/2017   19:07:49  ( -79.54, -29.90)    0.27                47
 02/17/2017   19:57:56   (  79.76, 139.32) 02/17/2017   19:58:27  (  79.75, 139.26)    1.29                31
 02/20/2017   11:25:04   ( -79.60,  86.35) 02/20/2017   11:24:40  ( -79.59,  86.31)    1.00                24
 02/20/2017   12:14:24   (  79.81,-104.42) 02/20/2017   12:15:18  (  79.80,-104.54)    2.62                54
 02/23/2017   03:41:33   ( -79.65,-157.39) 02/23/2017   03:41:32  ( -79.64,-157.50)    2.28                 1
 02/23/2017   04:28:54   (  81.73,  57.07) 02/23/2017   04:30:07  (  81.11,  56.43)   70.71                73
 02/25/2017   19:08:38   (  79.57, 150.30) 02/25/2017   19:07:42  (  79.58, 150.40)    2.18                56
 02/25/2017   19:57:59   ( -79.81, -40.31) 02/25/2017   19:58:20  ( -79.81, -40.17)    2.84                21
 02/28/2017   11:25:07   (  79.62, -93.48) 02/28/2017   11:24:34  (  79.62, -93.45)    0.66                33