Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 11 17.  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)
 11/19/2018   02:56:38   (  68.36, 134.54) 11/19/2018   02:57:16  (  68.35, 134.48)    2.92                38
 11/19/2018   03:47:18   ( -68.23, -57.98) 11/19/2018   03:46:45  ( -68.24, -58.01)    1.64                33
 11/21/2018   18:22:57   ( -68.96,  82.21) 11/21/2018   18:24:07  ( -68.88,  83.39)   48.21                70
 11/21/2018   19:13:31   (  68.30,-109.61) 11/21/2018   19:13:42  (  68.32,-109.66)    3.31                11
 11/21/2018   20:04:13   ( -68.22,  57.81) 11/21/2018   20:03:12  ( -68.22,  57.85)    1.64                61
 11/24/2018   10:39:42   ( -68.41,-161.30) 11/24/2018   10:40:42  ( -68.41,-161.30)    0.07                60
 11/24/2018   11:30:26   (  68.29,   6.17) 11/24/2018   11:30:09  (  68.29,   6.20)    1.29                17
 11/24/2018   12:20:58   ( -67.67, 174.27) 11/24/2018   12:19:47  ( -67.74, 173.19)   46.10                71
 11/27/2018   02:56:36   ( -68.35, -45.45) 11/27/2018   02:57:10  ( -68.33, -45.50)    2.84                34
 11/27/2018   03:47:20   (  68.22, 122.02) 11/27/2018   03:46:37  (  68.21, 121.99)    1.92                43
 11/29/2018   18:22:53   (  68.64, -97.39) 11/29/2018   18:24:04  (  68.57, -96.95)   19.30                71
 11/29/2018   19:13:30   ( -68.28,  70.40) 11/29/2018   19:13:37  ( -68.31,  70.36)    3.29                 7
 11/29/2018   20:04:13   (  68.17,-122.14) 11/29/2018   20:03:03  (  68.18,-122.14)    2.19                70