Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 1 13.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2013   20:01:36   (  68.37,-122.28) (  68.31,-122.05)   11.08                71
 01/15/2013   20:52:15   ( -68.14,  45.33) ( -68.15,  45.39)    2.55                 3
 01/15/2013   21:42:59   (  68.00,-147.18) (  67.98,-147.16)    1.82                73
 01/18/2013   12:18:27   (  68.23,  -6.32) (  68.21,  -6.29)    2.43                51
 01/18/2013   13:09:08   ( -68.11, 161.16) ( -68.11, 161.22)    2.62                20
 01/18/2013   13:59:37   (  67.16, -30.38) (  67.21, -32.16)   76.81                68
 01/21/2013   04:35:19   (  68.16, 109.56) (  68.15, 109.52)    1.81                29
 01/21/2013   05:26:00   ( -68.03, -82.96) ( -68.05, -82.97)    2.31                42
 01/23/2013   20:01:34   ( -68.59,  57.47) ( -68.47,  58.14)   30.20                72
 01/23/2013   20:52:12   (  68.14,-134.64) (  68.13,-134.63)    1.19                 5
 01/23/2013   21:42:53   ( -68.01,  32.85) ( -68.03,  32.89)    2.95                66
 01/26/2013   12:18:19   ( -68.20, 173.76) ( -68.21, 173.71)    2.51                59
 01/26/2013   13:09:03   (  68.07, -18.77) (  68.09, -18.79)    1.93                18
 01/26/2013   13:59:35   ( -67.45, 149.31) ( -67.49, 148.15)   49.25                71