Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 8 12.  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)
 08/13/2018   02:53:37   ( -75.66,-163.22) 08/13/2018   02:52:23  ( -75.87,-164.35)   38.98                74
 08/13/2018   03:41:40   (  79.37,  20.45) 08/13/2018   03:41:41  (  79.38,  20.55)    2.31                 1
 08/15/2018   19:08:47   ( -79.16, -32.63) 08/15/2018   19:08:00  ( -79.17, -32.62)    0.30                47
 08/15/2018   19:58:05   (  79.47, 137.03) 08/15/2018   19:58:35  (  79.48, 137.11)    1.62                30
 08/18/2018   11:25:12   ( -79.27,  83.92) 08/18/2018   11:24:54  ( -79.27,  83.92)    0.16                18
 08/18/2018   12:14:30   (  79.54,-106.65) 08/18/2018   12:15:29  (  79.54,-106.60)    1.18                59
 08/21/2018   02:52:16   (  79.09,  31.04) 08/21/2018   02:51:09  (  79.10,  31.10)    1.37                67
 08/21/2018   03:41:36   ( -79.37,-159.53) 08/21/2018   03:41:47  ( -79.37,-159.55)    0.43                11
 08/23/2018   19:08:41   (  79.19, 147.54) 08/23/2018   19:08:03  (  79.20, 147.60)    1.29                38
 08/23/2018   19:58:02   ( -79.43, -43.25) 08/23/2018   19:58:42  ( -79.43, -43.28)    0.48                40
 08/26/2018   11:25:05   (  79.33, -95.71) 08/26/2018   11:24:56  (  79.33, -95.64)    1.42                 9