Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2014 12 9.  Predictions up to the next  14.0 days:

     Date     Time(NPP) NPP Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2014   21:09:23   ( -69.44,  41.98) 12/09/2014   21:10:34  ( -69.41,  42.38)   16.27                71
 12/09/2014   22:00:04   (  69.16,-150.32) 12/09/2014   22:00:04  (  69.14,-150.33)    2.45                 0
 12/09/2014   22:50:45   ( -69.03,  17.18) 12/09/2014   22:49:34  ( -69.02,  17.15)    1.33                71
 12/12/2014   13:26:11   ( -69.23, 158.05) 12/12/2014   13:27:04  ( -69.23, 158.03)    0.79                53
 12/12/2014   14:16:55   (  69.10, -34.47) 12/12/2014   14:16:31  (  69.12, -34.46)    2.50                24
 12/12/2014   15:07:22   ( -68.22, 134.02) 12/12/2014   15:06:14  ( -68.29, 132.13)   77.91                68
 12/15/2014   04:52:39   (  70.26, 104.98) 12/15/2014   04:53:45  (  70.18, 107.59)   98.84                66
 12/15/2014   05:43:02   ( -69.17, -86.11) 12/15/2014   05:43:31  ( -69.18, -86.13)    1.54                29
 12/15/2014   06:33:46   (  69.05,  81.37) 12/15/2014   06:32:58  (  69.07,  81.37)    2.65                48
 12/17/2014   21:09:14   (  69.37,-137.93) 12/17/2014   21:10:26  (  69.32,-137.69)   10.60                72
 12/17/2014   21:59:53   ( -69.13,  29.73) 12/17/2014   21:59:57  ( -69.16,  29.72)    3.12                 4
 12/17/2014   22:50:37   (  69.01,-162.80) 12/17/2014   22:49:25  (  68.99,-162.85)    2.73                72
 12/20/2014   13:26:02   (  69.22, -21.95) 12/20/2014   13:26:52  (  69.20, -21.95)    2.36                50
 12/20/2014   14:16:43   ( -69.09, 145.56) 12/20/2014   14:16:22  ( -69.09, 145.54)    0.88                21
 12/20/2014   15:07:11   (  68.11, -45.85) 12/20/2014   15:06:04  (  68.14, -47.99)   88.94                67