Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 8 13.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2013   10:39:26   (  68.39,  18.67) (  68.38,  18.60)    2.98                65
 08/14/2013   11:30:07   ( -68.26,-173.85) ( -68.28,-173.89)    2.31                 6
 08/14/2013   12:20:45   (  67.80,  -5.96) (  67.83,  -6.77)   34.43                71
 08/17/2013   02:56:24   (  68.35, 134.48) (  68.36, 134.46)    1.60                37
 08/17/2013   03:47:06   ( -68.28, -58.10) ( -68.26, -58.03)    3.27                35
 08/19/2013   18:22:47   ( -68.93,  82.16) ( -68.85,  83.28)   45.73                70
 08/19/2013   19:13:22   (  68.32,-109.71) (  68.34,-109.70)    2.52                 9
 08/19/2013   20:04:03   ( -68.19,  57.78) ( -68.18,  57.75)    1.26                61
 08/22/2013   10:39:35   ( -68.42,-161.38) ( -68.42,-161.36)    1.08                58
 08/22/2013   11:30:19   (  68.28,   6.10) (  68.30,   6.14)    2.80                19
 08/22/2013   12:20:50   ( -67.61, 174.26) ( -67.65, 173.01)   53.21                70
 08/25/2013   02:56:33   ( -68.38, -45.57) ( -68.38, -45.54)    1.34                30
 08/25/2013   03:47:17   (  68.25, 121.91) (  68.26, 121.96)    2.34                47