Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2011 11 17.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 11/18/2011   18:22:34   ( -68.53,  82.95) ( -68.52,  82.99)    2.21                33
 11/18/2011   19:13:17   (  68.36,-109.53) (  68.35,-109.56)    1.46                42
 11/21/2011   10:38:41   ( -68.53,-161.09) ( -68.53,-161.09)    0.47                50
 11/21/2011   11:29:24   (  68.41,   6.37) (  68.42,   6.42)    2.41                27
 11/21/2011   12:19:49   ( -67.46, 174.87) ( -67.52, 173.01)   79.31                68
 11/24/2011   02:54:53   ( -68.55, -45.18) ( -68.55, -45.15)    1.25                60
 11/24/2011   03:45:36   (  68.38, 122.34) (  68.38, 122.29)    2.34                15
 11/24/2011   04:36:09   ( -67.86, -69.68) ( -67.88, -70.68)   41.88                71
 11/26/2011   19:11:11   ( -68.56,  70.73) ( -68.53,  70.73)    3.06                65
 11/26/2011   20:01:54   (  68.39,-121.74) (  68.42,-121.77)    3.06                11
 11/26/2011   20:52:30   ( -68.02,  46.04) ( -68.08,  45.47)   24.66                73
 11/29/2011   11:27:34   ( -68.54,-173.36) ( -68.52,-173.37)    2.45                64
 11/29/2011   12:18:18   (  68.43,  -5.90) (  68.40,  -5.87)    2.91                13
 11/29/2011   13:08:52   ( -67.95, 162.03) ( -68.01, 161.30)   31.35                72