Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 4 24.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/24/2012   04:36:43   (  68.09, 109.48) (  68.11, 109.46)    2.10                65
 04/26/2012   19:12:12   (  68.36,-109.72) (  68.35,-109.67)    2.39                59
 04/26/2012   20:02:52   ( -68.19,  57.82) ( -68.19,  57.78)    1.98                10
 04/26/2012   20:53:27   (  67.56,-134.09) (  67.63,-135.23)   48.93                70
 04/29/2012   11:29:05   (  68.30,   6.13) (  68.29,   6.14)    1.66                37
 04/29/2012   12:19:46   ( -68.18, 173.60) ( -68.19, 173.65)    2.33                34
 05/02/2012   02:55:26   ( -69.02, -46.37) ( -68.94, -44.83)   62.09                69
 05/02/2012   03:45:58   (  68.24, 121.97) (  68.26, 121.99)    2.22                14
 05/02/2012   04:36:39   ( -68.12, -70.55) ( -68.11, -70.56)    1.17                56
 05/04/2012   19:12:06   ( -68.32,  70.34) ( -68.34,  70.31)    2.97                68
 05/04/2012   20:02:51   (  68.24,-122.25) (  68.22,-122.19)    3.10                10
 05/04/2012   20:53:27   ( -67.84,  45.57) ( -67.90,  45.07)   22.13                72
 05/07/2012   11:29:00   ( -68.30,-173.86) ( -68.33,-173.83)    3.30                43
 05/07/2012   12:19:44   (  68.17,  -6.39) (  68.14,  -6.40)    2.76                33