Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 9 29.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/01/2012   03:44:39   ( -68.30, -57.96) ( -68.29, -57.98)    1.99                72
 10/01/2012   04:35:23   (  68.18, 109.51) (  68.17, 109.53)    1.07                 5
 10/01/2012   05:26:02   ( -67.94, -82.87) ( -67.95, -83.09)    9.65                72
 10/03/2012   20:01:31   ( -68.25,  57.89) ( -68.27,  57.89)    2.24                46
 10/03/2012   20:52:15   (  68.13,-134.65) (  68.15,-134.60)    3.23                31
 10/03/2012   21:42:38   ( -67.02,  34.01) ( -67.09,  31.83)   94.73                67
 10/06/2012   11:27:54   (  68.99,   5.37) (  68.89,   6.91)   62.62                69
 10/06/2012   12:18:23   ( -68.20, 173.73) ( -68.22, 173.73)    2.19                20
 10/06/2012   13:09:07   (  68.09, -18.82) (  68.10, -18.77)    2.71                57
 10/09/2012   03:44:34   (  68.32, 122.04) (  68.31, 122.09)    2.10                64
 10/09/2012   04:35:15   ( -68.17, -70.45) ( -68.15, -70.46)    2.03                 6
 10/09/2012   05:25:52   (  67.68,  97.47) (  67.75,  96.71)   32.79                71
 10/11/2012   20:01:24   (  68.24,-122.08) (  68.27,-122.07)    2.74                38
 10/11/2012   20:52:05   ( -68.09,  45.43) ( -68.11,  45.38)    2.82                32