Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2012 4 26.  Predictions up to the next  14.0 days:

     Date     Time(NPP)   NPP Lat/Lon  TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 04/26/2012   19:12:11   (  68.34,-109.69) (  68.34,-109.68)    0.66                60
 04/26/2012   20:02:52   ( -68.22,  57.78) ( -68.23,  57.83)    2.23                11
 04/26/2012   20:53:27   (  67.59,-134.13) (  67.67,-135.18)   45.08                71
 04/29/2012   11:29:03   (  68.28,   6.16) (  68.27,   6.12)    1.94                39
 04/29/2012   12:19:44   ( -68.16, 173.64) ( -68.17, 173.63)    1.28                32
 05/02/2012   02:55:25   ( -69.12, -46.49) ( -69.02, -44.72)   71.00                68
 05/02/2012   03:45:55   (  68.24, 122.00) (  68.24, 121.95)    1.73                17
 05/02/2012   04:36:36   ( -68.11, -70.53) ( -68.14, -70.53)    2.82                54
 05/04/2012   19:12:02   ( -68.34,  70.33) ( -68.35,  70.33)    1.20                71
 05/04/2012   20:02:46   (  68.21,-122.19) (  68.23,-122.17)    2.51                 6
 05/04/2012   20:53:25   ( -67.98,  45.42) ( -68.02,  45.21)   10.12                73
 05/07/2012   11:28:54   ( -68.33,-173.87) ( -68.32,-173.83)    2.02                48
 05/07/2012   12:19:37   (  68.14,  -6.33) (  68.14,  -6.40)    2.79                27
 05/07/2012   13:10:02   ( -67.15, 162.19) ( -67.21, 160.17)   87.13                67