Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 11 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)
 11/11/2018   03:47:20   (  68.27, 121.99) 11/11/2018   03:46:51  (  68.27, 122.00)    0.66                29
 11/11/2018   04:37:44   ( -67.23, -69.41) 11/11/2018   04:36:37  ( -67.27, -71.51)   90.38                67
 11/13/2018   18:23:02   (  69.15, -98.05) 11/13/2018   18:24:11  (  69.05, -96.42)   65.59                69
 11/13/2018   19:13:30   ( -68.33,  70.37) 11/13/2018   19:13:52  ( -68.33,  70.32)    2.31                22
 11/13/2018   20:04:14   (  68.19,-122.14) 11/13/2018   20:03:19  (  68.21,-122.18)    2.56                55
 11/16/2018   10:39:44   (  68.44,  18.68) 11/16/2018   10:40:49  (  68.44,  18.71)    1.15                65
 11/16/2018   11:30:25   ( -68.31,-173.83) 11/16/2018   11:30:20  ( -68.28,-173.85)    3.09                 5
 11/16/2018   12:21:03   (  67.85,  -5.95) 11/16/2018   12:19:51  (  67.94,  -6.61)   29.19                72
 11/19/2018   02:56:38   (  68.37, 134.53) 11/19/2018   02:57:17  (  68.39, 134.54)    2.49                39
 11/19/2018   03:47:19   ( -68.24, -57.98) 11/19/2018   03:46:48  ( -68.24, -58.01)    1.49                31
 11/21/2018   18:22:59   ( -69.07,  82.06) 11/21/2018   18:24:08  ( -68.98,  83.51)   58.92                69
 11/21/2018   19:13:31   (  68.31,-109.62) 11/21/2018   19:13:45  (  68.30,-109.68)    2.71                14
 11/21/2018   20:04:13   ( -68.22,  57.81) 11/21/2018   20:03:15  ( -68.20,  57.84)    2.07                58
 11/24/2018   10:39:42   ( -68.42,-161.30) 11/24/2018   10:40:46  ( -68.40,-161.32)    2.26                64
 11/24/2018   11:30:26   (  68.30,   6.16) 11/24/2018   11:30:13  (  68.27,   6.17)    3.05                13
 11/24/2018   12:21:00   ( -67.78, 174.13) 11/24/2018   12:19:49  ( -67.84, 173.30)   35.50                71