Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 6 28.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/30/2013   02:55:48   (  68.42, 134.42) (  68.40, 134.52)    5.25                71
 06/30/2013   03:46:28   ( -68.23, -58.01) ( -68.24, -58.04)    1.31                 2
 06/30/2013   04:37:11   (  68.05, 109.52) (  68.06, 109.40)    4.92                73
 07/02/2013   19:12:39   (  68.30,-109.64) (  68.30,-109.70)    2.42                48
 07/02/2013   20:03:21   ( -68.21,  57.79) ( -68.20,  57.81)    1.07                24
 07/02/2013   20:53:47   (  67.12,-133.57) (  67.18,-135.70)   92.51                67
 07/05/2013   10:39:06   ( -69.31,-162.54) ( -69.21,-160.33)   87.55                67
 07/05/2013   11:29:33   (  68.29,   6.15) (  68.31,   6.19)    2.32                21
 07/05/2013   12:20:14   ( -68.14, 173.66) ( -68.16, 173.64)    1.64                49
 07/08/2013   02:55:43   ( -68.39, -45.51) ( -68.37, -45.50)    3.02                72
 07/08/2013   03:46:26   (  68.23, 122.01) (  68.24, 121.99)    1.06                 4
 07/08/2013   04:37:06   ( -68.02, -70.41) ( -68.03, -70.62)    8.72                72
 07/10/2013   19:12:36   ( -68.33,  70.35) ( -68.34,  70.35)    0.57                46
 07/10/2013   20:03:20   (  68.23,-122.20) (  68.20,-122.16)    3.05                31
 07/10/2013   20:53:43   ( -67.10,  46.49) ( -67.16,  44.29)   95.34                67