Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2011 11 18.  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   17:32:27   (  68.55, -84.56) (  68.55, -84.61)    2.07                71
 11/18/2011   18:23:08   ( -68.41,  82.95) ( -68.43,  82.88)    3.35                 0
 11/18/2011   19:13:50   (  68.18,-109.46) (  68.21,-109.73)   11.80                73
 11/21/2011   09:49:19   (  68.49,  31.29) (  68.51,  31.25)    2.30                44
 11/21/2011   10:40:01   ( -68.40,-161.27) ( -68.39,-161.26)    1.51                28
 11/24/2011   01:15:41   ( -69.29, -21.34) ( -69.20, -19.62)   68.62                68
 11/24/2011   02:06:12   (  68.49, 147.07) (  68.48, 147.12)    2.36                15
 11/24/2011   02:56:53   ( -68.34, -45.43) ( -68.36, -45.38)    3.11                56
 11/26/2011   17:32:20   ( -68.54,  95.46) ( -68.53,  95.44)    1.96                64
 11/26/2011   18:23:04   (  68.43, -97.09) (  68.41, -97.06)    2.43                13
 11/26/2011   19:13:38   ( -67.91,  70.89) ( -67.96,  70.05)   35.79                71
 11/29/2011   09:49:11   ( -68.48,-148.70) ( -68.47,-148.71)    1.31                35
 11/29/2011   10:39:55   (  68.37,  18.76) (  68.35,  18.79)    2.21                42
 12/02/2011   01:15:25   (  68.73, 159.42) (  68.65, 159.79)   17.30                71