Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 9 16.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 09/17/2012   20:01:42   ( -68.27,  57.84) ( -68.29,  57.87)    2.78                49
 09/17/2012   20:52:26   (  68.13,-134.69) (  68.12,-134.68)    1.63                27
 09/17/2012   21:42:51   ( -67.14,  33.83) ( -67.23,  31.94)   82.12                68
 09/20/2012   11:28:09   (  69.15,   5.11) (  69.04,   7.06)   78.14                68
 09/20/2012   12:18:35   ( -68.21, 173.68) ( -68.21, 173.67)    0.56                25
 09/20/2012   13:09:19   (  68.08, -18.85) (  68.09, -18.83)    1.64                52
 09/23/2012   03:44:47   (  68.29, 122.03) (  68.28, 122.00)    1.71                71
 09/23/2012   04:35:28   ( -68.16, -70.48) ( -68.18, -70.49)    2.59                 0
 09/23/2012   05:26:10   (  67.92,  97.12) (  67.95,  96.89)   10.20                73
 09/25/2012   20:01:40   (  68.24,-122.13) (  68.24,-122.17)    1.40                46
 09/25/2012   20:52:22   ( -68.16,  45.30) ( -68.14,  45.35)    2.77                26
 09/25/2012   21:42:47   (  67.01,-146.01) (  67.06,-148.22)   96.24                67
 09/28/2012   11:28:05   ( -69.21,-174.97) ( -69.09,-172.88)   83.99                67
 09/28/2012   12:18:32   (  68.19,  -6.29) (  68.19,  -6.34)    2.10                21
 09/28/2012   13:09:14   ( -68.10, 161.14) ( -68.09, 161.17)    1.82                51