Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 11 21.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 11/23/2012   11:28:13   (  69.04,   5.20) (  68.92,   6.99)   72.47                68
 11/23/2012   12:18:40   ( -68.15, 173.70) ( -68.15, 173.67)    1.37                23
 11/23/2012   13:09:24   (  68.02, -18.84) (  68.04, -18.81)    1.65                54
 11/26/2012   03:44:53   (  68.23, 122.05) (  68.21, 121.99)    3.13                71
 11/26/2012   04:35:34   ( -68.09, -70.45) ( -68.11, -70.50)    2.93                 0
 11/26/2012   05:26:16   (  67.86,  97.14) (  67.88,  96.88)   11.09                73
 11/28/2012   20:01:47   (  68.19,-122.12) (  68.20,-122.15)    1.25                47
 11/28/2012   20:52:28   ( -68.10,  45.31) ( -68.09,  45.36)    2.40                25
 11/28/2012   21:42:54   (  67.00,-146.07) (  67.02,-148.20)   92.64                67
 12/01/2012   11:28:14   ( -69.24,-175.06) ( -69.16,-172.72)   93.08                66
 12/01/2012   12:18:40   (  68.16,  -6.31) (  68.15,  -6.32)    1.33                23
 12/01/2012   13:09:21   ( -68.02, 161.19) ( -67.99, 161.13)    3.51                47
 12/04/2012   03:44:52   ( -68.37, -58.12) ( -68.30, -57.90)   11.56                72
 12/04/2012   04:35:34   (  68.15, 109.48) (  68.13, 109.54)    3.15                 2
 12/04/2012   05:26:15   ( -68.00, -83.02) ( -67.97, -83.01)    3.17                72