Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2017 7 30.  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)
 08/02/2017   02:51:53   (  79.14,  31.42) 08/02/2017   02:50:50  (  79.15,  31.49)    1.72                63
 08/02/2017   03:41:14   ( -79.39,-159.35) 08/02/2017   03:41:29  ( -79.38,-159.43)    1.82                15
 08/04/2017   19:08:20   (  79.17, 147.49) 08/04/2017   19:07:46  (  79.17, 147.41)    1.69                34
 08/04/2017   19:57:39   ( -79.50, -42.74) 08/04/2017   19:58:22  ( -79.50, -42.69)    1.37                43
 08/07/2017   11:24:44   (  79.36, -95.45) 08/07/2017   11:24:38  (  79.36, -95.37)    1.78                 6
 08/07/2017   12:14:06   ( -79.56,  73.59) 08/07/2017   12:15:18  ( -79.56,  73.52)    1.45                72
 08/10/2017   02:51:51   ( -79.20,-148.22) 08/10/2017   02:50:56  ( -79.21,-148.09)    3.10                55
 08/10/2017   03:41:11   (  79.42,  20.84) 08/10/2017   03:41:34  (  79.41,  20.81)    0.69                23
 08/12/2017   19:08:18   ( -79.26, -31.97) 08/12/2017   19:07:52  ( -79.26, -31.92)    1.16                26