Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2011 12 8.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2011   02:05:52   (  68.54, 147.02) (  68.55, 147.08)    2.58                70
 12/10/2011   02:56:32   ( -68.37, -45.44) ( -68.39, -45.49)    2.94                 1
 12/10/2011   03:47:14   (  68.12, 122.19) (  68.17, 121.89)   13.41                72
 12/12/2011   18:22:43   (  68.51, -97.16) (  68.49, -97.13)    2.76                52
 12/12/2011   19:13:24   ( -68.40,  70.31) ( -68.39,  70.38)    3.03                19
 12/12/2011   20:03:54   (  67.50,-121.27) (  67.55,-122.95)   71.79                69
 12/15/2011   10:39:33   (  68.44,  18.71) (  68.46,  18.70)    1.99                34
 12/15/2011   11:30:14   ( -68.32,-173.82) ( -68.35,-173.79)    3.43                37
 12/18/2011   02:05:52   ( -69.20, -33.84) ( -69.11, -32.25)   63.73                69
 12/18/2011   02:56:24   (  68.42, 134.51) (  68.44, 134.56)    2.75                14
 12/18/2011   03:47:05   ( -68.30, -58.02) ( -68.28, -58.00)    2.47                56
 12/20/2011   18:22:29   ( -68.49,  82.89) ( -68.51,  82.87)    1.64                72
 12/20/2011   19:13:14   (  68.41,-109.70) (  68.39,-109.63)    3.69                 6
 12/20/2011   20:03:53   ( -68.18,  57.92) ( -68.18,  57.75)    6.79                73