Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 10 20.  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   (  79.34, -83.18) 10/21/2018   10:34:25  (  79.34, -83.22)    0.98                62
 10/21/2018   11:24:48   ( -79.58,  86.11) 10/21/2018   11:25:03  ( -79.58,  86.04)    1.50                15
 10/24/2018   02:51:50   (  79.52,  33.92) 10/24/2018   02:51:14  (  79.53,  34.05)    2.75                36
 10/24/2018   03:41:12   ( -79.72,-157.00) 10/24/2018   03:41:53  ( -79.73,-156.90)    2.18                41
 10/26/2018   19:08:16   (  79.54, 149.95) 10/26/2018   19:08:07  (  79.55, 149.98)    0.63                 9
 10/26/2018   19:57:37   ( -79.78, -40.67) 10/26/2018   19:58:45  ( -79.78, -40.67)    0.07                68
 10/29/2018   10:35:23   ( -79.35,  96.88) 10/29/2018   10:34:23  ( -79.35,  96.84)    0.93                60
 10/29/2018   11:24:41   (  79.63, -93.51) 10/29/2018   11:24:59  (  79.63, -93.56)    1.13                18
 11/01/2018   02:51:48   ( -79.44,-146.63) 11/01/2018   02:51:15  ( -79.43,-146.73)    2.11                33
 11/01/2018   03:41:07   (  79.68,  22.73) 11/01/2018   03:41:52  (  79.68,  22.62)    2.30                45
 11/03/2018   19:08:13   ( -79.52, -30.16) 11/03/2018   19:08:07  ( -79.51, -30.29)    2.74                 6