Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 11 18.  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)
 11/19/2014   05:43:23   ( -67.06, 140.06) 11/19/2014   05:42:09  ( -67.26, 139.02)   49.70                74
 11/19/2014   06:29:31   (  77.40, -31.33) 11/19/2014   06:29:30  (  77.41, -31.22)    2.82                 1
 11/19/2014   07:17:11   ( -81.25, 165.64) 11/19/2014   07:18:25  ( -80.96, 166.25)   34.21                74
 11/21/2014   21:56:44   ( -76.81, -85.32) 11/21/2014   21:55:53  ( -76.82, -85.24)    2.20                51
 11/21/2014   22:45:54   (  77.52,  85.04) 11/21/2014   22:46:21  (  77.52,  85.02)    0.42                27
 11/24/2014   14:13:01   ( -77.14,  31.79) 11/24/2014   14:12:39  ( -77.15,  31.84)    1.27                22
 11/24/2014   15:02:12   (  77.79,-157.93) 11/24/2014   15:03:08  (  77.79,-157.96)    0.68                56
 11/27/2014   05:40:09   (  76.50, -22.24) 11/27/2014   05:39:01  (  76.50, -22.26)    0.59                68
 11/27/2014   06:29:20   ( -77.29, 148.29) 11/27/2014   06:29:29  ( -77.28, 148.19)    2.56                 9
 11/29/2014   21:56:20   (  76.91,  95.10) 11/29/2014   21:55:44  (  76.90,  95.05)    1.54                36
 11/29/2014   22:45:26   ( -77.91, -93.22) 11/29/2014   22:46:06  ( -77.91, -93.11)    2.65                40
 12/02/2014   13:28:46   ( -58.74,  17.56) 12/02/2014   13:27:34  ( -58.96,  15.97)   95.11                72
 12/02/2014   14:12:27   (  77.46,-146.85) 12/02/2014   14:12:24  (  77.46,-146.83)    0.58                 3