Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 7 11.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/13/2013   10:39:00   (  69.12,  17.76) (  69.03,  19.47)   68.88                68
 07/13/2013   11:29:28   ( -68.28,-173.79) ( -68.31,-173.78)    3.39                21
 07/13/2013   12:20:12   (  68.16,  -6.34) (  68.13,  -6.35)    3.30                55
 07/16/2013   02:55:40   (  68.37, 134.55) (  68.38, 134.56)    0.62                66
 07/16/2013   03:46:21   ( -68.22, -57.94) ( -68.22, -58.00)    2.33                 4
 07/16/2013   04:37:00   (  67.84, 109.85) (  67.88, 109.24)   25.76                72
 07/18/2013   19:12:33   (  68.33,-109.60) (  68.33,-109.61)    0.80                40
 07/18/2013   20:03:14   ( -68.17,  57.91) ( -68.18,  57.84)    2.79                30
 07/21/2013   10:38:54   ( -69.03,-162.07) ( -68.96,-160.59)   59.50                69
 07/21/2013   11:29:26   (  68.28,   6.24) (  68.27,   6.22)    1.16                14
 07/21/2013   12:20:08   ( -68.18, 173.69) ( -68.18, 173.74)    2.09                58
 07/24/2013   02:55:35   ( -68.40, -45.44) ( -68.39, -45.40)    1.61                63
 07/24/2013   03:46:18   (  68.24, 122.08) (  68.26, 122.09)    2.55                13
 07/24/2013   04:36:53   ( -67.76, -70.00) ( -67.83, -70.78)   33.55                72