Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2016 4 14.  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)
 04/16/2016   09:49:38   ( -68.96,-149.23) 04/16/2016   09:50:49  ( -68.81,-148.38)   37.79                71
 04/16/2016   10:40:14   (  68.42,  18.81) 04/16/2016   10:40:21  (  68.41,  18.77)    1.68                 7
 04/16/2016   11:30:56   ( -68.33,-173.75) 04/16/2016   11:29:51  ( -68.31,-173.72)    2.14                65
 04/19/2016   02:06:26   ( -68.54, -32.89) 04/19/2016   02:07:23  ( -68.52, -32.86)    2.50                57
 04/19/2016   02:57:09   (  68.37, 134.64) 04/19/2016   02:56:50  (  68.40, 134.63)    3.07                19
 04/19/2016   03:47:40   ( -67.68, -57.19) 04/19/2016   03:46:30  ( -67.74, -58.50)   56.01                70
 04/21/2016   18:23:21   ( -68.49,  82.94) 04/21/2016   18:23:52  ( -68.50,  83.00)    2.82                31
 04/21/2016   19:14:04   (  68.32,-109.54) 04/21/2016   19:13:20  (  68.32,-109.57)    1.33                44
 04/24/2016   09:49:38   (  68.76,  31.03) 04/24/2016   09:50:49  (  68.69,  31.48)   19.71                71
 04/24/2016   10:40:16   ( -68.44,-161.24) 04/24/2016   10:40:22  ( -68.43,-161.21)    2.22                 6
 04/24/2016   11:30:59   (  68.28,   6.28) 04/24/2016   11:29:49  (  68.31,   6.29)    3.12                70
 04/27/2016   02:06:28   (  68.50, 147.13) 04/27/2016   02:07:20  (  68.51, 147.14)    0.49                52
 04/27/2016   02:57:09   ( -68.35, -45.35) 04/27/2016   02:56:51  ( -68.35, -45.42)    2.75                18
 04/27/2016   03:47:39   (  67.48, 123.03) 04/27/2016   03:46:31  (  67.50, 121.24)   76.39                68