Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 10 19.  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)
 10/21/2018   10:35:27   (  79.33, -83.26) 10/21/2018   10:34:25  (  79.33, -83.31)    1.02                62
 10/21/2018   11:24:48   ( -79.57,  86.03) 10/21/2018   11:25:03  ( -79.57,  85.96)    1.56                15
 10/24/2018   02:51:50   (  79.51,  33.84) 10/24/2018   02:51:14  (  79.52,  33.96)    2.54                36
 10/24/2018   03:41:12   ( -79.71,-157.07) 10/24/2018   03:41:53  ( -79.72,-156.98)    1.98                41
 10/26/2018   19:08:17   (  79.53, 149.88) 10/26/2018   19:08:08  (  79.53, 149.88)    0.27                 9
 10/26/2018   19:57:38   ( -79.77, -40.73) 10/26/2018   19:58:46  ( -79.77, -40.75)    0.48                68
 10/29/2018   10:35:23   ( -79.34,  96.83) 10/29/2018   10:34:23  ( -79.34,  96.75)    1.77                60
 10/29/2018   11:24:42   (  79.59, -93.84) 10/29/2018   11:25:00  (  79.58, -93.93)    1.96                18
 11/01/2018   02:51:46   ( -79.51,-146.14) 11/01/2018   02:51:12  ( -79.52,-146.01)    2.95                34