Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 10 21.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 10/22/2012   11:28:01   (  69.01,   5.30) (  68.88,   6.95)   67.34                68
 10/22/2012   12:18:29   ( -68.16, 173.74) ( -68.16, 173.70)    1.55                21
 10/22/2012   13:09:13   (  68.04, -18.80) (  68.05, -18.79)    0.93                56
 10/25/2012   03:44:44   (  68.25, 122.07) (  68.25, 122.06)    0.32                66
 10/25/2012   04:35:26   ( -68.16, -70.49) ( -68.15, -70.43)    2.74                 6
 10/25/2012   05:26:04   (  67.71,  97.36) (  67.76,  96.76)   25.95                72
 10/27/2012   20:01:40   (  68.19,-122.10) (  68.21,-122.10)    2.26                40
 10/27/2012   20:52:21   ( -68.04,  45.41) ( -68.06,  45.34)    3.34                30
 10/30/2012   11:28:04   ( -68.89,-174.56) ( -68.77,-173.19)   56.68                70
 10/30/2012   12:18:36   (  68.14,  -6.26) (  68.15,  -6.30)    1.79                14
 10/30/2012   13:09:18   ( -68.04, 161.18) ( -68.05, 161.22)    1.93                58
 11/02/2012   03:44:48   ( -68.24, -57.94) ( -68.23, -57.96)    1.76                63
 11/02/2012   04:35:31   (  68.08, 109.57) (  68.11, 109.54)    3.10                13
 11/02/2012   05:26:06   ( -67.60, -82.52) ( -67.67, -83.33)   35.33                72