Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 3 30.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 03/31/2013   11:29:12   (  68.24,   6.08) (  68.23,   6.03)    2.05                59
 03/31/2013   12:19:53   ( -68.10, 173.57) ( -68.12, 173.54)    2.77                12
 03/31/2013   13:10:27   (  67.43, -18.30) (  67.51, -19.52)   52.95                70
 04/03/2013   03:46:09   (  68.21, 121.88) (  68.20, 121.87)    1.32                33
 04/03/2013   04:36:50   ( -68.07, -70.62) ( -68.09, -70.62)    2.68                38
 04/05/2013   19:12:29   ( -68.68,  69.72) ( -68.60,  70.59)   36.21                71
 04/05/2013   20:03:06   (  68.18,-122.32) (  68.15,-122.31)    3.28                 7
 04/05/2013   20:53:47   ( -68.04,  45.18) ( -68.05,  45.20)    1.44                64
 04/08/2013   11:29:18   ( -68.28,-173.99) ( -68.27,-173.94)    2.66                57
 04/08/2013   12:20:01   (  68.10,  -6.45) (  68.09,  -6.50)    2.48                18
 04/08/2013   13:10:32   ( -67.43, 161.70) ( -67.49, 160.44)   54.30                70
 04/11/2013   03:46:14   ( -68.21, -58.13) ( -68.20, -58.15)    1.49                32
 04/11/2013   04:36:58   (  68.09, 109.34) (  68.08, 109.35)    1.13                45
 04/13/2013   19:12:32   (  68.45,-109.98) (  68.38,-109.69)   14.16                72