Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 7 3.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 07/05/2012   03:44:58   (  68.30, 122.06) (  68.28, 122.02)    3.17                69
 07/05/2012   04:35:39   ( -68.15, -70.42) ( -68.16, -70.48)    3.08                 2
 07/05/2012   05:26:19   (  67.82,  97.30) (  67.89,  96.84)   20.65                72
 07/07/2012   20:01:53   (  68.25,-122.11) (  68.26,-122.12)    1.14                44
 07/07/2012   20:52:35   ( -68.15,  45.33) ( -68.15,  45.38)    1.95                28
 07/10/2012   11:28:20   ( -69.18,-174.89) ( -69.07,-172.89)   80.05                67
 07/10/2012   12:18:48   (  68.21,  -6.30) (  68.24,  -6.28)    2.63                19
 07/10/2012   13:09:29   ( -68.06, 161.22) ( -68.07, 161.16)    2.86                51
 07/13/2012   03:44:59   ( -68.29, -57.93) ( -68.31, -57.96)    3.00                71
 07/13/2012   04:35:43   (  68.18, 109.51) (  68.20, 109.55)    2.68                 6
 07/13/2012   05:26:22   ( -67.92, -82.84) ( -67.98, -83.07)   12.05                73
 07/15/2012   20:01:53   ( -68.26,  57.87) ( -68.27,  57.87)    0.86                46
 07/15/2012   20:52:37   (  68.15,-134.69) (  68.15,-134.63)    2.55                31
 07/15/2012   21:43:00   ( -67.02,  33.99) ( -67.10,  31.82)   94.60                67