Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 9 24.  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)
 09/26/2018   19:13:35   ( -68.42,  70.26) 09/26/2018   19:14:29  ( -68.42,  70.23)    1.06                54
 09/26/2018   20:04:19   (  68.30,-122.28) 09/26/2018   20:03:56  (  68.30,-122.26)    0.85                23
 09/26/2018   20:54:47   ( -67.46,  46.08) 09/26/2018   20:53:38  ( -67.53,  44.48)   68.94                69
 09/29/2018   10:40:06   (  69.40,  17.37) 09/29/2018   10:41:13  (  69.28,  19.57)   87.19                67
 09/29/2018   11:30:31   ( -68.40,-173.95) 09/29/2018   11:30:57  ( -68.40,-173.91)    1.74                26
 09/29/2018   12:21:14   (  68.23,  -6.41) 09/29/2018   12:20:25  (  68.23,  -6.47)    2.42                49
 10/02/2018   02:56:44   (  68.47, 134.41) 10/02/2018   02:57:54  (  68.48, 134.44)    1.18                70
 10/02/2018   03:47:25   ( -68.33, -58.09) 10/02/2018   03:47:25  ( -68.32, -58.12)    1.67                 0
 10/02/2018   04:38:06   (  68.05, 109.59) 10/02/2018   04:36:54  (  68.09, 109.25)   14.65                72
 10/04/2018   19:13:39   (  68.41,-109.73) 10/04/2018   19:14:23  (  68.40,-109.78)    2.30                44
 10/04/2018   20:04:21   ( -68.32,  57.71) 10/04/2018   20:03:53  ( -68.30,  57.74)    2.22                28
 10/07/2018   10:40:04   ( -69.20,-162.35) 10/07/2018   10:41:13  ( -69.10,-160.66)   67.67                69
 10/07/2018   11:30:35   (  68.39,   6.06) 10/07/2018   11:30:51  (  68.37,   6.07)    2.76                16
 10/07/2018   12:21:16   ( -68.25, 173.56) 10/07/2018   12:20:21  ( -68.27, 173.59)    2.94                55