Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 4 11.  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)
 04/13/2016   18:23:20   (  68.48, -97.04) 04/13/2016   18:23:52  (  68.48, -97.02)    0.54                32
 04/13/2016   19:14:01   ( -68.33,  70.48) 04/13/2016   19:13:23  ( -68.32,  70.42)    2.36                38
 04/16/2016   09:49:38   ( -68.97,-149.23) 04/16/2016   09:50:49  ( -68.81,-148.38)   38.24                71
 04/16/2016   10:40:14   (  68.43,  18.80) 04/16/2016   10:40:21  (  68.41,  18.77)    2.05                 7
 04/16/2016   11:30:56   ( -68.33,-173.76) 04/16/2016   11:29:51  ( -68.31,-173.71)    2.65                65
 04/19/2016   02:06:25   ( -68.49, -32.83) 04/19/2016   02:07:23  ( -68.51, -32.87)    3.08                58
 04/19/2016   02:57:09   (  68.38, 134.62) 04/19/2016   02:56:50  (  68.39, 134.63)    1.49                19
 04/19/2016   03:47:40   ( -67.69, -57.19) 04/19/2016   03:46:30  ( -67.74, -58.50)   55.71                70
 04/21/2016   18:23:21   ( -68.50,  82.93) 04/21/2016   18:23:52  ( -68.49,  82.99)    2.58                31
 04/21/2016   19:14:04   (  68.33,-109.55) 04/21/2016   19:13:20  (  68.31,-109.58)    2.71                44
 04/24/2016   09:49:38   (  68.77,  31.01) 04/24/2016   09:50:49  (  68.67,  31.46)   21.48                71
 04/24/2016   10:40:15   ( -68.40,-161.18) 04/24/2016   10:40:22  ( -68.40,-161.23)    2.05                 7
 04/24/2016   11:30:59   (  68.29,   6.27) 04/24/2016   11:29:49  (  68.28,   6.27)    1.18                70