Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 29.  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)
 01/30/2018   11:25:31   (  79.57, -93.85) 01/30/2018   11:24:31  (  79.57, -93.88)    0.69                60
 01/30/2018   12:14:51   ( -79.83,  75.73) 01/30/2018   12:15:08  ( -79.83,  75.74)    0.23                17
 02/02/2018   03:41:56   (  79.73,  23.25) 02/02/2018   03:41:19  (  79.74,  23.38)    2.70                37
 02/02/2018   04:31:20   ( -79.85,-168.23) 02/02/2018   04:32:01  ( -79.84,-168.38)    3.13                41
 02/04/2018   19:58:24   (  79.75, 139.23) 02/04/2018   19:58:11  (  79.75, 139.24)    0.17                13
 02/04/2018   20:47:45   ( -79.97, -51.37) 02/04/2018   20:48:49  ( -79.97, -51.34)    0.59                64
 02/07/2018   11:25:32   ( -79.58,  86.26) 02/07/2018   11:24:25  ( -79.58,  86.23)    0.71                67
 02/07/2018   12:14:52   (  79.79,-104.54) 02/07/2018   12:15:03  (  79.79,-104.63)    1.86                11
 02/10/2018   03:42:00   ( -79.63,-157.53) 02/10/2018   03:41:17  ( -79.62,-157.64)    2.43                43
 02/10/2018   04:31:17   (  79.94,  12.51) 02/10/2018   04:31:51  (  79.94,  12.67)    3.10                34
 02/12/2018   19:58:25   ( -79.78, -40.52) 02/12/2018   19:58:05  ( -79.78, -40.39)    2.82                20