Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 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)
 08/21/2018   02:52:16   (  79.10,  31.12) 08/21/2018   02:51:09  (  79.11,  31.20)    1.83                67
 08/21/2018   03:41:36   ( -79.38,-159.50) 08/21/2018   03:41:47  ( -79.38,-159.48)    0.30                11
 08/23/2018   19:08:40   (  79.24, 147.85) 08/23/2018   19:08:02  (  79.24, 147.96)    2.31                38
 08/23/2018   19:58:01   ( -79.47, -42.97) 08/23/2018   19:58:41  ( -79.47, -42.93)    0.78                40
 08/26/2018   11:25:07   (  79.21, -96.43) 08/26/2018   11:24:59  (  79.20, -96.58)    3.18                 8
 08/26/2018   12:14:25   ( -79.56,  73.54) 08/26/2018   12:15:34  ( -79.57,  73.62)    1.67                69
 08/29/2018   02:52:13   ( -79.03,-149.31) 08/29/2018   02:51:17  ( -79.02,-149.45)    3.05                56
 08/29/2018   03:41:31   (  79.34,  20.27) 08/29/2018   03:41:52  (  79.34,  20.19)    1.87                21
 08/31/2018   19:08:37   ( -79.16, -32.65) 08/31/2018   19:08:10  ( -79.16, -32.72)    1.55                27