Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2014 12 28.  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)
 12/28/2014   13:25:54   ( -69.57, 157.57) 12/28/2014   13:27:05  ( -69.46, 158.30)   31.26                71
 12/28/2014   14:16:32   (  69.12, -34.49) 12/28/2014   14:16:36  (  69.14, -34.48)    2.20                 4
 12/28/2014   15:07:13   ( -69.00, 133.00) 12/28/2014   15:06:06  ( -69.02, 133.01)    2.34                67
 12/31/2014   05:42:38   ( -69.22, -86.16) 12/31/2014   05:43:37  ( -69.20, -86.15)    2.27                59
 12/31/2014   06:33:22   (  69.09,  81.33) 12/31/2014   06:33:04  (  69.10,  81.36)    1.34                18
 12/31/2014   07:23:53   ( -68.43,-110.47) 12/31/2014   07:22:43  ( -68.48,-111.78)   53.75                70
 01/02/2015   21:59:28   ( -69.19,  29.65) 01/02/2015   22:00:04  ( -69.18,  29.71)    2.73                36
 01/02/2015   22:50:11   (  69.01,-162.79) 01/02/2015   22:49:32  (  69.02,-162.86)    2.94                39
 01/05/2015   13:25:44   (  69.73, -22.65) 01/05/2015   13:26:53  (  69.62, -21.45)   47.98                69
 01/05/2015   14:16:16   ( -69.12, 145.53) 01/05/2015   14:16:30  ( -69.12, 145.52)    0.35                14
 01/05/2015   15:07:00   (  68.99, -46.99) 01/05/2015   15:05:57  (  69.01, -46.97)    1.75                63
 01/08/2015   05:42:24   (  69.19,  93.90) 01/08/2015   05:43:26  (  69.19,  93.87)    1.16                62
 01/08/2015   06:33:05   ( -69.06, -98.60) 01/08/2015   06:32:56  ( -69.08, -98.63)    2.77                 9
 01/08/2015   07:23:41   (  68.50,  69.45) 01/08/2015   07:22:30  (  68.57,  68.38)   44.40                71
 01/10/2015   21:59:14   (  69.18,-150.32) 01/10/2015   21:59:51  (  69.16,-150.26)    3.27                37
 01/10/2015   22:49:55   ( -69.05,  17.18) 01/10/2015   22:49:21  ( -69.06,  17.23)    1.98                34