Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 1 24.  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)
 01/25/2018   03:41:55   ( -79.73,-156.79) 01/25/2018   03:41:25  ( -79.73,-156.68)    2.10                30
 01/25/2018   04:31:17   (  79.88,  11.98) 01/25/2018   04:32:05  (  79.88,  11.96)    0.44                48
 01/27/2018   19:58:24   ( -79.72, -40.97) 01/27/2018   19:58:18  ( -79.71, -41.08)    2.25                 6
 01/27/2018   20:47:43   (  79.97, 128.63) 01/27/2018   20:48:54  (  79.98, 128.73)    2.06                71
 01/30/2018   11:25:30   (  79.59, -93.70) 01/30/2018   11:24:30  (  79.59, -93.72)    0.40                60
 01/30/2018   12:14:51   ( -79.82,  75.64) 01/30/2018   12:15:08  ( -79.82,  75.65)    0.38                17
 02/02/2018   03:41:56   (  79.72,  23.12) 02/02/2018   03:41:19  (  79.73,  23.26)    3.01                37
 02/02/2018   04:31:20   ( -79.83,-168.34) 02/02/2018   04:32:01  ( -79.83,-168.48)    2.88                41
 02/04/2018   19:58:24   (  79.76, 139.36) 02/04/2018   19:58:11  (  79.76, 139.39)    0.56                13
 02/04/2018   20:47:46   ( -79.95, -51.50) 02/04/2018   20:48:50  ( -79.96, -51.46)    0.86                64
 02/07/2018   11:25:31   ( -79.60,  86.39) 02/07/2018   11:24:24  ( -79.60,  86.38)    0.35                67