Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 5 25.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/26/2013   10:39:09   (  68.99,  17.77) (  68.87,  19.25)   60.71                69
 05/26/2013   11:29:38   ( -68.23,-173.90) ( -68.26,-173.87)    2.81                19
 05/26/2013   12:20:22   (  68.09,  -6.41) (  68.09,  -6.42)    1.15                57
 05/29/2013   02:55:51   (  68.33, 134.42) (  68.32, 134.44)    2.05                67
 05/29/2013   03:46:32   ( -68.21, -58.10) ( -68.21, -58.06)    1.74                 4
 05/29/2013   04:37:11   (  67.80, 109.73) (  67.87, 109.19)   23.77                72
 05/31/2013   19:12:45   (  68.27,-109.72) (  68.30,-109.71)    2.95                44
 05/31/2013   20:03:26   ( -68.15,  57.76) ( -68.14,  57.73)    1.64                26
 06/03/2013   10:39:12   ( -69.25,-162.57) ( -69.15,-160.42)   85.60                67
 06/03/2013   11:29:40   (  68.27,   6.06) (  68.26,   6.11)    2.38                20
 06/03/2013   12:20:20   ( -68.08, 173.62) ( -68.10, 173.56)    3.01                49
 06/06/2013   02:55:51   ( -68.40, -45.63) ( -68.37, -45.52)    5.73                72
 06/06/2013   03:46:34   (  68.22, 121.91) (  68.19, 121.91)    3.02                 3
 06/06/2013   04:37:15   ( -68.08, -70.60) ( -68.10, -70.57)    1.80                74