Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 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)
 08/15/2017   10:36:01   (  77.41, -93.04) 08/15/2017   10:34:47  (  77.55, -93.56)   19.32                74
 08/15/2017   11:24:43   ( -79.34,  84.45) 08/15/2017   11:24:46  ( -79.34,  84.43)    0.61                 3
 08/18/2017   02:51:48   (  79.19,  31.71) 08/18/2017   02:51:02  (  79.19,  31.75)    0.88                46
 08/18/2017   03:41:10   ( -79.39,-159.33) 08/18/2017   03:41:42  ( -79.39,-159.42)    1.91                32
 08/20/2017   19:08:14   (  79.27, 148.14) 08/20/2017   19:07:57  (  79.27, 148.14)    0.06                17
 08/20/2017   19:57:36   ( -79.47, -42.88) 08/20/2017   19:58:37  ( -79.47, -43.01)    2.78                61
 08/23/2017   10:35:23   ( -79.01,  94.74) 08/23/2017   10:34:18  ( -79.00,  94.62)    2.73                65
 08/23/2017   11:24:40   (  79.35, -95.45) 08/23/2017   11:24:52  (  79.35, -95.48)    0.54                12
 08/26/2017   02:51:47   ( -79.13,-148.65) 08/26/2017   02:51:11  ( -79.12,-148.78)    2.94                36