Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 3 6.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/07/2012   02:55:33   (  68.49, 134.39) (  68.45, 134.56)    8.31                71
 03/07/2012   03:46:13   ( -68.29, -58.02) ( -68.28, -58.01)    1.19                 2
 03/07/2012   04:36:56   (  68.12, 109.50) (  68.12, 109.44)    2.32                73
 03/09/2012   19:12:25   (  68.38,-109.69) (  68.38,-109.64)    2.00                48
 03/09/2012   20:03:06   ( -68.23,  57.82) ( -68.21,  57.79)    2.17                22
 03/09/2012   20:53:33   (  67.20,-133.61) (  67.26,-135.65)   88.03                67
 03/12/2012   10:38:53   ( -69.40,-162.62) ( -69.29,-160.26)   93.45                67
 03/12/2012   11:29:19   (  68.33,   6.14) (  68.35,   6.20)    3.22                23
 03/12/2012   12:20:00   ( -68.18, 173.65) ( -68.18, 173.64)    0.69                47
 03/15/2012   02:55:31   ( -68.51, -45.63) ( -68.47, -45.42)   10.08                72
 03/15/2012   03:46:12   (  68.24, 122.02) (  68.24, 121.96)    2.67                 0
 03/15/2012   04:36:54   ( -68.14, -70.53) ( -68.13, -70.53)    0.43                72
 03/17/2012   19:12:23   ( -68.37,  70.31) ( -68.34,  70.32)    3.04                50
 03/17/2012   20:03:06   (  68.21,-122.17) (  68.23,-122.17)    2.22                26
 03/17/2012   20:53:32   ( -67.25,  46.32) ( -67.34,  44.45)   81.02                68