Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 1 9.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/11/2012   02:55:39   ( -68.47, -45.45) ( -68.46, -45.43)    1.85                61
 01/11/2012   03:46:23   (  68.34, 122.03) (  68.35, 122.07)    1.88                16
 01/11/2012   04:36:56   ( -67.79, -69.96) ( -67.85, -70.88)   39.29                72
 01/13/2012   19:12:28   ( -68.41,  70.42) ( -68.44,  70.43)    2.78                40
 01/13/2012   20:03:12   (  68.28,-122.11) (  68.26,-122.14)    2.13                36
 01/16/2012   10:38:48   (  69.12,  17.93) (  69.00,  19.38)   59.50                69
 01/16/2012   11:29:18   ( -68.41,-173.79) ( -68.40,-173.73)    2.49                18
 01/16/2012   12:20:01   (  68.22,  -6.25) (  68.22,  -6.30)    2.00                57
 01/19/2012   02:55:25   (  68.48, 134.58) (  68.50, 134.64)    3.08                67
 01/19/2012   03:46:06   ( -68.35, -57.93) ( -68.34, -57.91)    0.93                 3
 01/19/2012   04:36:46   (  68.01, 109.81) (  68.05, 109.39)   18.06                73
 01/21/2012   19:12:14   (  68.43,-109.57) (  68.42,-109.56)    1.13                46
 01/21/2012   20:02:55   ( -68.29,  57.93) ( -68.27,  57.89)    3.02                24
 01/21/2012   20:53:21   (  67.20,-133.43) (  67.24,-135.64)   95.23                67