Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 2 14.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 02/14/2013   05:26:27   (  67.15,  97.94) (  67.23,  96.14)   78.15                68
 02/16/2013   19:11:48   ( -69.26,  69.07) ( -69.15,  71.40)   92.41                66
 02/16/2013   20:02:14   (  68.18,-122.17) (  68.15,-122.20)    3.08                23
 02/16/2013   20:52:55   ( -68.03,  45.33) ( -68.05,  45.31)    1.85                48
 02/19/2013   11:28:26   ( -68.25,-173.81) ( -68.26,-173.84)    1.51                71
 02/19/2013   12:19:10   (  68.13,  -6.35) (  68.14,  -6.33)    1.14                 6
 02/19/2013   13:09:49   ( -67.88, 161.29) ( -67.93, 161.05)   11.47                73
 02/22/2013   03:45:23   ( -68.21, -57.99) ( -68.21, -58.02)    1.25                43
 02/22/2013   04:36:07   (  68.10, 109.46) (  68.09, 109.49)    1.95                34
 02/24/2013   19:11:48   (  68.83,-110.35) (  68.71,-109.15)   50.20                69
 02/24/2013   20:02:20   ( -68.19,  57.80) ( -68.17,  57.82)    2.22                15
 02/24/2013   20:53:03   (  68.02,-134.68) (  68.05,-134.68)    2.59                61
 02/27/2013   11:28:34   (  68.23,   6.20) (  68.24,   6.16)    2.64                60
 02/27/2013   12:19:16   ( -68.12, 173.66) ( -68.14, 173.67)    2.87                12
 02/27/2013   13:09:50   (  67.47, -18.24) (  67.52, -19.40)   49.88                70