Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 8 11.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2012   03:44:59   ( -68.30, -57.98) ( -68.32, -57.93)    3.01                62
 08/14/2012   04:35:43   (  68.16, 109.50) (  68.15, 109.51)    1.49                14
 08/14/2012   05:26:17   ( -67.66, -82.56) ( -67.72, -83.36)   34.31                72
 08/16/2012   20:01:53   ( -68.27,  57.83) ( -68.28,  57.86)    2.32                47
 08/16/2012   20:52:37   (  68.13,-134.69) (  68.11,-134.69)    2.03                29
 08/16/2012   21:43:01   ( -67.09,  33.89) ( -67.13,  31.83)   89.26                67
 08/19/2012   12:18:47   ( -68.25, 173.62) ( -68.26, 173.66)    2.34                36
 08/19/2012   13:09:31   (  68.11, -18.90) (  68.09, -18.90)    2.07                40
 08/22/2012   03:45:17   (  69.33, 120.62) (  69.22, 123.03)   95.42                66
 08/22/2012   04:35:40   ( -68.23, -70.59) ( -68.26, -70.55)    3.05                29
 08/22/2012   05:26:24   (  68.10,  96.89) (  68.09,  96.90)    1.58                47
 08/24/2012   20:02:09   (  69.22,-123.45) (  69.11,-121.33)   84.84                67
 08/24/2012   20:52:34   ( -68.23,  45.19) ( -68.21,  45.18)    2.44                27
 08/24/2012   21:43:18   (  68.10,-147.34) (  68.09,-147.31)    1.29                50