Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 3 12.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/12/2013   19:12:13   (  69.03,-110.70) (  68.90,-109.00)   69.48                68
 03/12/2013   20:02:41   ( -68.19,  57.74) ( -68.17,  57.75)    1.30                21
 03/12/2013   20:53:24   (  68.01,-134.73) (  68.01,-134.80)    2.76                54
 03/15/2013   11:28:57   (  68.27,   6.08) (  68.28,   6.11)    1.65                66
 03/15/2013   12:19:38   ( -68.12, 173.58) ( -68.11, 173.55)    1.52                 4
 03/15/2013   13:10:17   (  67.73, -18.62) (  67.78, -19.19)   24.67                72
 03/18/2013   03:45:54   (  68.21, 121.91) (  68.20, 121.89)    1.99                41
 03/18/2013   04:36:35   ( -68.12, -70.65) ( -68.09, -70.60)    3.37                31
 03/20/2013   19:12:19   ( -68.98,  69.36) ( -68.83,  70.90)   63.73                69
 03/20/2013   20:02:50   (  68.17,-122.26) (  68.16,-122.28)    1.07                15
 03/20/2013   20:53:32   ( -68.07,  45.18) ( -68.06,  45.24)    2.67                57
 03/23/2013   11:29:04   ( -68.29,-173.97) ( -68.28,-173.90)    3.20                64
 03/23/2013   12:19:47   (  68.13,  -6.45) (  68.10,  -6.46)    2.59                11
 03/23/2013   13:10:23   ( -67.70, 161.40) ( -67.73, 160.73)   28.18                72
 03/26/2013   03:46:00   ( -68.21, -58.09) ( -68.21, -58.10)    0.75                39
 03/26/2013   04:36:44   (  68.10, 109.36) (  68.09, 109.40)    1.74                38