Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 6 17.  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)
 06/17/2017   19:08:27   (  79.26, 148.05) 06/17/2017   19:07:36  (  79.27, 148.16)    2.40                51
 06/17/2017   19:57:47   ( -79.54, -42.46) 06/17/2017   19:58:13  ( -79.55, -42.32)    2.90                26
 06/20/2017   11:24:50   (  79.40, -95.21) 06/20/2017   11:24:26  (  79.40, -95.06)    3.12                24
 06/20/2017   12:14:14   ( -79.52,  73.29) 06/20/2017   12:15:08  ( -79.51,  73.15)    2.87                54
 06/23/2017   02:52:05   ( -78.86,-150.24) 06/23/2017   02:50:51  ( -78.89,-150.34)    3.33                74
 06/23/2017   03:41:18   (  79.37,  20.48) 06/23/2017   03:41:22  (  79.36,  20.39)    2.05                 4
 06/25/2017   19:08:23   ( -79.23, -32.14) 06/25/2017   19:07:36  ( -79.24, -32.11)    0.77                47
 06/25/2017   19:57:42   (  79.48, 137.17) 06/25/2017   19:58:13  (  79.48, 137.16)    0.29                31
 06/28/2017   11:24:46   ( -79.39,  84.77) 06/28/2017   11:24:26  ( -79.40,  84.91)    3.01                20
 06/28/2017   12:14:06   (  79.60,-106.16) 06/28/2017   12:15:04  (  79.60,-106.06)    2.08                58
 07/01/2017   02:51:51   (  79.13,  31.33) 07/01/2017   02:50:42  (  79.12,  31.30)    0.84                69