Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 10 15.  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)
 10/15/2017   19:08:17   ( -79.62, -29.49) 10/15/2017   19:08:15  ( -79.62, -29.46)    0.75                 2
 10/15/2017   19:55:56   (  81.83, 177.14) 10/15/2017   19:57:09  (  81.31, 177.16)   58.53                73
 10/18/2017   10:35:23   (  79.46, -82.39) 10/18/2017   10:34:30  (  79.46, -82.38)    0.37                53
 10/18/2017   11:24:45   ( -79.66,  86.71) 10/18/2017   11:25:09  ( -79.66,  86.67)    0.76                24
 10/21/2017   02:51:50   (  79.53,  34.00) 10/21/2017   02:51:23  (  79.53,  33.99)    0.25                27
 10/21/2017   03:41:12   ( -79.74,-156.86) 10/21/2017   03:42:02  ( -79.73,-156.94)    1.50                50
 10/23/2017   19:08:16   (  79.63, 150.63) 10/23/2017   19:08:15  (  79.63, 150.62)    0.28                 1
 10/23/2017   19:56:27   ( -81.64, -15.53) 10/23/2017   19:57:41  ( -81.27, -15.15)   41.01                74
 10/26/2017   10:35:23   ( -79.46,  97.61) 10/26/2017   10:34:30  ( -79.46,  97.60)    0.12                53
 10/26/2017   11:24:41   (  79.73, -92.77) 10/26/2017   11:25:06  (  79.73, -92.74)    0.61                25
 10/29/2017   02:51:48   ( -79.59,-145.59) 10/29/2017   02:51:21  ( -79.59,-145.53)    1.20                27