Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 6 22.  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)
 06/23/2015   08:57:35   (  78.60, -62.95) 06/23/2015   08:57:22  (  78.60, -62.96)    0.30                13
 06/23/2015   09:46:51   ( -79.07, 107.30) 06/23/2015   09:47:55  ( -79.07, 107.39)    2.09                64
 06/26/2015   00:24:44   ( -78.38,-115.85) 06/26/2015   00:23:37  ( -78.39,-115.73)    2.98                67
 06/26/2015   01:14:03   (  78.67,  53.28) 06/26/2015   01:14:14  (  78.67,  53.20)    1.86                11
 06/28/2015   16:41:14   ( -78.35,  -0.14) 06/28/2015   16:40:32  ( -78.34,  -0.26)    2.89                42
 06/28/2015   17:30:28   (  78.84, 170.11) 06/28/2015   17:31:03  (  78.84, 170.05)    1.57                35
 07/01/2015   08:57:38   ( -78.56, 116.78) 07/01/2015   08:57:20  ( -78.56, 116.75)    0.70                18
 07/01/2015   09:46:53   (  79.00, -73.12) 07/01/2015   09:47:52  (  79.00, -73.09)    0.69                59
 07/04/2015   00:24:44   (  78.30,  63.71) 07/04/2015   00:23:33  (  78.30,  63.74)    0.61                71