Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 7 1.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2013   19:12:40   (  68.34,-109.69) (  68.31,-109.69)    2.51                47
 07/02/2013   20:03:21   ( -68.18,  57.83) ( -68.16,  57.76)    3.18                23
 07/02/2013   20:53:47   (  67.10,-133.55) (  67.14,-135.76)   95.47                66
 07/05/2013   10:39:07   ( -69.32,-162.56) ( -69.17,-160.38)   87.63                67
 07/05/2013   11:29:33   (  68.26,   6.19) (  68.27,   6.14)    2.02                22
 07/05/2013   12:20:15   ( -68.16, 173.64) ( -68.18, 173.66)    2.43                50
 07/08/2013   02:55:44   ( -68.40, -45.52) ( -68.39, -45.47)    2.16                71
 07/08/2013   03:46:27   (  68.24, 121.99) (  68.26, 122.02)    2.24                 5
 07/08/2013   04:37:07   ( -68.03, -70.42) ( -68.06, -70.59)    7.66                73
 07/10/2013   19:12:37   ( -68.33,  70.35) ( -68.31,  70.33)    1.77                46
 07/10/2013   20:03:20   (  68.17,-122.14) (  68.18,-122.19)    2.04                30
 07/10/2013   20:53:44   ( -67.10,  46.49) ( -67.14,  44.27)   96.19                67
 07/13/2013   10:39:00   (  69.07,  17.83) (  68.92,  19.33)   62.21                69
 07/13/2013   11:29:29   ( -68.26,-173.78) ( -68.28,-173.83)    2.61                20
 07/13/2013   12:20:13   (  68.16,  -6.34) (  68.14,  -6.35)    2.47                57