Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 7 12.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/13/2012   03:44:59   ( -68.30, -57.95) ( -68.30, -57.97)    0.96                70
 07/13/2012   04:35:43   (  68.18, 109.51) (  68.19, 109.55)    2.03                 7
 07/13/2012   05:26:21   ( -67.87, -82.79) ( -67.91, -83.15)   15.64                72
 07/15/2012   20:01:54   ( -68.26,  57.87) ( -68.28,  57.89)    2.62                44
 07/15/2012   20:52:38   (  68.14,-134.67) (  68.11,-134.66)    2.78                32
 07/18/2012   11:28:19   (  68.95,   5.40) (  68.85,   6.83)   58.39                69
 07/18/2012   12:18:48   ( -68.21, 173.69) ( -68.24, 173.72)    3.28                18
 07/18/2012   13:09:32   (  68.09, -18.85) (  68.07, -18.84)    2.86                58
 07/21/2012   03:45:01   (  68.26, 122.08) (  68.28, 122.02)    3.29                64
 07/21/2012   04:35:43   ( -68.17, -70.48) ( -68.18, -70.47)    1.51                 8
 07/21/2012   05:26:20   (  67.67,  97.44) (  67.72,  96.65)   33.84                72
 07/23/2012   20:01:57   (  68.27,-122.17) (  68.25,-122.13)    2.48                36
 07/23/2012   20:52:38   ( -68.12,  45.34) ( -68.10,  45.32)    2.72                34