Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 10 10.  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)
 10/12/2018   19:13:35   ( -68.46,  70.28) 10/12/2018   19:14:18  ( -68.46,  70.31)    1.39                43
 10/12/2018   20:04:19   (  68.33,-122.25) 10/12/2018   20:03:45  (  68.34,-122.19)    2.60                34
 10/15/2018   10:39:57   (  69.07,  17.90) 10/15/2018   10:41:07  (  68.96,  19.18)   52.66                70
 10/15/2018   11:30:28   ( -68.40,-173.88) 10/15/2018   11:30:45  ( -68.42,-173.86)    2.19                17
 10/15/2018   12:21:12   (  68.27,  -6.41) 10/15/2018   12:20:12  (  68.29,  -6.36)    2.83                60
 10/18/2018   02:56:41   (  68.48, 134.46) 10/18/2018   02:57:43  (  68.46, 134.45)    1.89                62
 10/18/2018   03:47:22   ( -68.34, -58.04) 10/18/2018   03:47:13  ( -68.37, -58.03)    3.40                 9
 10/18/2018   04:37:58   (  67.78, 109.97) 10/18/2018   04:36:47  (  67.85, 109.00)   40.98                71
 10/20/2018   19:13:35   (  68.42,-109.70) 10/20/2018   19:14:11  (  68.41,-109.73)    1.63                36
 10/20/2018   20:04:17   ( -68.34,  57.73) 10/20/2018   20:03:41  ( -68.32,  57.80)    3.20                36
 10/23/2018   10:39:55   ( -69.02,-162.04) 10/23/2018   10:41:05  ( -68.88,-160.91)   47.81                70
 10/23/2018   11:30:29   (  68.36,   6.14) 10/23/2018   11:30:39  (  68.36,   6.09)    2.03                10
 10/23/2018   12:21:11   ( -68.28, 173.57) 10/23/2018   12:20:09  ( -68.27, 173.62)    2.22                62