Simultaneous Nadir Overpasses (SNOs) between AURA and NPP
TLE Epoch: 2014 5 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)
 05/19/2014   08:08:47   ( -77.18, 122.97) 05/19/2014   08:08:41  ( -77.18, 122.94)    0.73                 6
 05/19/2014   08:57:57   (  77.90, -66.42) 05/19/2014   08:59:08  (  77.90, -66.31)    2.74                71
 05/21/2014   23:36:03   (  76.62,  69.18) 05/21/2014   23:35:06  (  76.62,  69.14)    1.00                57
 05/22/2014   00:25:15   ( -77.35,-120.50) 05/22/2014   00:25:35  ( -77.34,-120.54)    1.19                20
 05/24/2014   15:52:30   (  76.95,-173.79) 05/24/2014   15:51:57  (  76.96,-173.72)    2.25                33
 05/24/2014   16:41:43   ( -77.62,  -3.53) 05/24/2014   16:42:27  ( -77.63,  -3.44)    2.23                44
 05/27/2014   08:09:06   (  76.92, -58.07) 05/27/2014   08:08:57  (  76.91, -58.18)    3.07                 9
 05/27/2014   08:58:20   ( -77.55, 112.01) 05/27/2014   08:59:28  ( -77.54, 111.90)    2.96                68
 05/29/2014   23:36:27   ( -76.45,-111.52) 05/29/2014   23:35:22  ( -76.44,-111.53)    0.17                65