Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 12 9.  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)
 12/10/2014   14:13:04   ( -77.06,  31.55) 12/10/2014   14:12:25  ( -77.06,  31.45)    2.57                39
 12/10/2014   15:02:09   (  78.00,-156.93) 12/10/2014   15:02:47  (  78.00,-156.90)    0.82                38
 12/13/2014   06:29:23   ( -77.37, 148.63) 12/13/2014   06:29:10  ( -77.36, 148.52)    2.81                13
 12/13/2014   07:18:29   (  78.24, -39.88) 12/13/2014   07:19:33  (  78.24, -39.85)    0.83                64
 12/15/2014   21:56:29   (  76.95,  95.28) 12/15/2014   21:55:26  (  76.94,  95.23)    1.49                63
 12/15/2014   22:45:40   ( -77.70, -94.07) 12/15/2014   22:45:54  ( -77.70, -94.17)    2.52                14
 12/18/2014   14:12:44   (  77.33,-147.35) 12/18/2014   14:12:09  (  77.33,-147.39)    1.14                35
 12/18/2014   15:01:56   ( -78.02,  23.26) 12/18/2014   15:02:38  ( -78.02,  23.20)    1.69                42
 12/21/2014   06:28:56   (  77.74, -29.73) 12/21/2014   06:28:50  (  77.74, -29.74)    0.28                 6
 12/21/2014   07:18:10   ( -78.33, 140.64) 12/21/2014   07:19:21  ( -78.33, 140.62)    0.35                71
 12/23/2014   21:56:03   ( -77.21, -83.62) 12/23/2014   21:55:10  ( -77.21, -83.69)    1.92                53