Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2018 7 28.  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)
 07/30/2018   19:08:53   ( -79.19, -32.39) 07/30/2018   19:07:48  ( -79.19, -32.39)    0.07                65
 07/30/2018   19:58:11   (  79.50, 137.26) 07/30/2018   19:58:23  (  79.51, 137.39)    2.86                12
 08/02/2018   11:25:20   ( -79.24,  83.78) 08/02/2018   11:24:44  ( -79.24,  83.69)    2.00                36
 08/02/2018   12:14:38   (  79.54,-106.56) 08/02/2018   12:15:19  (  79.55,-106.53)    0.67                41
 08/05/2018   03:41:42   ( -79.44,-159.03) 08/05/2018   03:41:34  ( -79.45,-158.91)    2.60                 8
 08/05/2018   04:31:03   (  79.62,   9.88) 08/05/2018   04:32:13  (  79.61,   9.82)    1.39                70
 08/07/2018   19:08:50   (  79.16, 147.39) 08/07/2018   19:07:54  (  79.15, 147.26)    2.79                56
 08/07/2018   19:58:09   ( -79.48, -42.88) 08/07/2018   19:58:30  ( -79.48, -42.84)    1.09                21
 08/10/2018   11:25:13   (  79.35, -95.49) 08/10/2018   11:24:45  (  79.36, -95.39)    1.99                28