Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 7 31.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 08/01/2013   02:56:02   (  68.36, 134.52) (  68.37, 134.50)    1.96                52
 08/01/2013   03:46:44   ( -68.27, -58.05) ( -68.26, -58.00)    2.30                20
 08/01/2013   04:37:13   (  67.33, 110.42) (  67.37, 108.62)   77.27                68
 08/03/2013   19:13:01   (  68.36,-109.72) (  68.35,-109.65)    2.64                24
 08/03/2013   20:03:42   ( -68.22,  57.78) ( -68.19,  57.79)    2.95                46
 08/06/2013   10:39:17   ( -68.54,-161.50) ( -68.49,-161.26)   11.53                71
 08/06/2013   11:29:58   (  68.25,   6.18) (  68.26,   6.11)    2.93                 1
 08/06/2013   12:20:40   ( -68.17, 173.61) ( -68.16, 173.63)    0.92                73
 08/09/2013   02:56:13   ( -68.39, -45.54) ( -68.39, -45.50)    1.58                47
 08/09/2013   03:46:56   (  68.21, 122.00) (  68.22, 121.93)    3.08                28
 08/09/2013   04:37:21   ( -67.21, -69.45) ( -67.23, -71.56)   91.11                67
 08/11/2013   18:22:41   (  69.13, -98.09) (  69.05, -96.44)   66.01                68
 08/11/2013   19:13:10   ( -68.34,  70.28) ( -68.34,  70.31)    1.09                20
 08/11/2013   20:03:54   (  68.22,-122.25) (  68.22,-122.19)    2.30                57