Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2011 12 26.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/28/2011   18:22:26   (  69.02, -97.78) (  68.91, -96.64)   47.18                70
 12/28/2011   19:12:58   ( -68.42,  70.33) ( -68.41,  70.38)    2.22                15
 12/28/2011   20:03:42   (  68.28,-122.18) (  68.25,-122.18)    3.34                61
 12/31/2011   10:39:06   (  68.47,  18.73) (  68.47,  18.70)    1.40                67
 12/31/2011   11:29:46   ( -68.36,-173.80) ( -68.37,-173.80)    1.32                 4
 12/31/2011   12:20:25   (  67.94,  -5.97) (  68.03,  -6.55)   25.99                72
 01/03/2012   02:55:55   (  68.47, 134.51) (  68.46, 134.56)    2.47                46
 01/03/2012   03:46:35   ( -68.30, -57.95) ( -68.30, -57.99)    2.04                23
 01/03/2012   04:37:02   (  67.24, 110.66) (  67.29, 108.48)   93.54                67
 01/05/2012   19:12:44   (  68.43,-109.65) (  68.42,-109.60)    2.27                26
 01/05/2012   20:03:24   ( -68.26,  57.90) ( -68.27,  57.85)    2.35                43
 01/08/2012   10:38:56   ( -68.90,-161.80) ( -68.77,-160.94)   37.95                71
 01/08/2012   11:29:32   (  68.35,   6.25) (  68.37,   6.22)    2.28                 7
 01/08/2012   12:20:13   ( -68.22, 173.73) ( -68.21, 173.67)    2.59                63