Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 5 7.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 05/07/2012   11:28:56   ( -68.32,-173.87) ( -68.30,-173.85)    1.95                47
 05/07/2012   12:19:40   (  68.18,  -6.39) (  68.19,  -6.33)    2.62                30
 05/07/2012   13:10:04   ( -67.14, 162.19) ( -67.19, 160.16)   87.88                68
 05/10/2012   02:55:22   (  69.20, 133.40) (  69.12, 135.42)   80.34                67
 05/10/2012   03:45:48   ( -68.27, -58.04) ( -68.24, -58.04)    3.58                25
 05/10/2012   04:36:32   (  68.14, 109.44) (  68.12, 109.47)    1.61                52
 05/12/2012   19:12:00   (  68.42,-109.77) (  68.37,-109.63)    7.69                71
 05/12/2012   20:02:40   ( -68.24,  57.78) ( -68.22,  57.81)    2.74                 2
 05/12/2012   20:53:23   (  68.05,-134.67) (  68.04,-134.75)    3.52                73
 05/15/2012   11:28:50   (  68.30,   6.17) (  68.28,   6.13)    2.99                51
 05/15/2012   12:19:31   ( -68.17, 173.65) ( -68.18, 173.65)    1.32                20
 05/15/2012   13:10:00   (  67.23, -17.89) (  67.27, -19.74)   79.75                68
 05/18/2012   03:45:40   (  68.24, 122.02) (  68.28, 122.01)    3.48                28
 05/18/2012   04:36:21   ( -68.11, -70.49) ( -68.13, -70.53)    2.49                42
 05/20/2012   19:11:54   ( -68.70,  69.90) ( -68.61,  70.66)   32.22                71
 05/20/2012   20:02:31   (  68.20,-122.15) (  68.21,-122.19)    1.45                 6
 05/20/2012   20:53:13   ( -68.12,  45.28) ( -68.11,  45.34)    2.58                66