Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 17.  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)
 08/18/2018   11:25:12   ( -79.26,  83.84) 08/18/2018   11:24:54  ( -79.26,  83.84)    0.23                18
 08/18/2018   12:14:31   (  79.53,-106.71) 08/18/2018   12:15:30  (  79.53,-106.66)    1.35                59
 08/21/2018   02:52:16   (  79.12,  31.22) 08/21/2018   02:51:09  (  79.12,  31.30)    1.82                67
 08/21/2018   03:41:37   ( -79.36,-159.63) 08/21/2018   03:41:48  ( -79.36,-159.63)    0.25                11
 08/23/2018   19:08:40   (  79.22, 147.70) 08/23/2018   19:08:02  (  79.22, 147.80)    2.18                38
 08/23/2018   19:58:01   ( -79.45, -43.11) 08/23/2018   19:58:41  ( -79.46, -43.09)    0.62                40
 08/26/2018   11:25:04   (  79.35, -95.58) 08/26/2018   11:24:55  (  79.35, -95.44)    2.90                 9
 08/26/2018   12:14:26   ( -79.54,  73.39) 08/26/2018   12:15:35  ( -79.55,  73.45)    1.34                69
 08/29/2018   02:52:10   ( -79.17,-148.49) 08/29/2018   02:51:13  ( -79.17,-148.36)    2.75                57