Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 6 23.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 06/24/2012   11:28:17   ( -68.99,-174.61) ( -68.85,-173.14)   60.77                69
 06/24/2012   12:18:48   (  68.19,  -6.24) (  68.19,  -6.31)    2.66                15
 06/24/2012   13:09:30   ( -68.09, 161.19) ( -68.08, 161.20)    0.83                57
 06/27/2012   03:44:56   ( -68.31, -57.92) ( -68.33, -57.92)    2.26                70
 06/27/2012   04:35:39   (  68.15, 109.59) (  68.16, 109.53)    2.97                 5
 06/27/2012   05:26:19   ( -67.94, -82.84) ( -68.00, -83.03)   10.41                74
 06/29/2012   20:01:47   ( -68.26,  57.91) ( -68.28,  57.90)    2.68                50
 06/29/2012   20:52:31   (  68.16,-134.65) (  68.17,-134.59)    2.90                27
 06/29/2012   21:42:57   ( -67.19,  33.84) ( -67.23,  31.97)   80.70                68
 07/02/2012   11:28:14   (  69.34,   4.93) (  69.28,   7.39)   97.07                66
 07/02/2012   12:18:37   ( -68.21, 173.75) ( -68.23, 173.71)    2.48                30
 07/02/2012   13:09:21   (  68.11, -18.81) (  68.12, -18.78)    1.33                47
 07/05/2012   03:44:52   (  68.60, 121.72) (  68.49, 122.27)   25.26                72
 07/05/2012   04:35:29   ( -68.22, -70.47) ( -68.22, -70.42)    2.13                 8
 07/05/2012   05:26:12   (  68.07,  97.03) (  68.05,  97.02)    2.44                67