Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2015 2 21.  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)
 02/23/2015   07:19:02   ( -77.92, 138.68) 02/23/2015   07:17:51  ( -77.91, 138.56)    3.00                71
 02/23/2015   08:08:13   (  78.56, -50.55) 02/23/2015   08:08:19  (  78.55, -50.61)    1.43                 6
 02/25/2015   23:35:31   ( -78.24,-103.95) 02/25/2015   23:34:36  ( -78.24,-103.92)    0.66                55
 02/26/2015   00:24:44   (  78.78,  66.52) 02/26/2015   00:25:06  (  78.79,  66.61)    2.12                22
 02/28/2015   15:52:10   ( -78.33,  12.32) 02/28/2015   15:51:27  ( -78.33,  12.33)    0.35                43
 02/28/2015   16:41:23   (  78.86,-177.17) 02/28/2015   16:41:57  (  78.87,-177.10)    1.55                34
 03/03/2015   08:08:52   ( -78.48, 128.92) 03/03/2015   08:08:16  ( -78.49, 129.01)    2.13                36
 03/03/2015   08:58:06   (  78.97, -60.73) 03/03/2015   08:58:47  (  78.98, -60.59)    3.07                41
 03/06/2015   00:25:42   ( -78.45,-115.44) 03/06/2015   00:25:09  ( -78.45,-115.44)    0.14                33