Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 5 7.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2013   19:12:40   ( -68.30,  70.22) ( -68.28,  70.26)    2.80                50
 05/07/2013   20:03:24   (  68.14,-122.29) (  68.16,-122.23)    3.13                27
 05/07/2013   20:53:50   ( -67.22,  46.16) ( -67.27,  44.38)   76.64                69
 05/10/2013   10:39:07   (  69.05,  17.67) (  68.97,  19.38)   68.72                68
 05/10/2013   11:29:35   ( -68.23,-173.93) ( -68.25,-173.88)    2.80                21
 05/10/2013   12:20:19   (  68.08,  -6.44) (  68.08,  -6.44)    0.79                55
 05/13/2013   02:55:49   (  68.29, 134.44) (  68.30, 134.45)    1.14                63
 05/13/2013   03:46:30   ( -68.18, -58.08) ( -68.20, -58.04)    3.19                 8
 05/13/2013   04:37:07   (  67.65, 109.88) (  67.69, 109.01)   36.88                71
 05/15/2013   19:12:43   (  68.25,-109.72) (  68.23,-109.74)    2.20                34
 05/15/2013   20:03:24   ( -68.12,  57.76) ( -68.13,  57.77)    0.62                37
 05/18/2013   10:39:00   ( -68.66,-161.80) ( -68.53,-161.12)   30.85                71
 05/18/2013   11:29:38   (  68.20,   6.11) (  68.18,   6.10)    2.05                 4
 05/18/2013   12:20:19   ( -68.08, 173.59) ( -68.09, 173.62)    1.60                67
 05/21/2013   02:55:49   ( -68.30, -45.55) ( -68.30, -45.50)    1.94                50
 05/21/2013   03:46:33   (  68.17, 121.93) (  68.17, 121.99)    2.62                27