Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2013 3 29.  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   (  68.25,   6.06) (  68.28,   6.09)    2.95                58
 03/31/2013   12:19:53   ( -68.12, 173.55) ( -68.12, 173.53)    0.98                12
 03/31/2013   13:10:27   (  67.45, -18.32) (  67.50, -19.53)   52.26                70
 04/03/2013   03:46:09   (  68.22, 121.86) (  68.20, 121.87)    3.04                33
 04/03/2013   04:36:50   ( -68.08, -70.64) ( -68.09, -70.62)    1.32                38
 04/05/2013   19:12:29   ( -68.70,  69.70) ( -68.61,  70.60)   37.82                71
 04/05/2013   20:03:05   (  68.15,-122.27) (  68.16,-122.30)    2.13                 8
 04/05/2013   20:53:47   ( -68.06,  45.15) ( -68.06,  45.22)    2.56                64
 04/08/2013   11:29:18   ( -68.25,-173.95) ( -68.24,-173.98)    1.88                59
 04/08/2013   12:20:02   (  68.13,  -6.48) (  68.12,  -6.47)    1.03                18
 04/08/2013   13:10:33   ( -67.45, 161.67) ( -67.52, 160.47)   51.87                70
 04/11/2013   03:46:13   ( -68.19, -58.10) ( -68.19, -58.16)    2.51                34
 04/11/2013   04:36:57   (  68.07, 109.37) (  68.07, 109.34)    1.14                43