Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 11 18.  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   02:57:15  (  68.39, 134.54)    3.21                37
 11/19/2018   03:47:19   ( -68.24, -57.98) 11/19/2018   03:46:46  ( -68.23, -58.02)    2.08                33
 11/21/2018   18:22:57   ( -68.96,  82.20) 11/21/2018   18:24:07  ( -68.86,  83.36)   47.88                70
 11/21/2018   19:13:32   (  68.35,-109.68) 11/21/2018   19:13:41  (  68.35,-109.61)    2.65                 9
 11/21/2018   20:04:13   ( -68.22,  57.81) 11/21/2018   20:03:12  ( -68.19,  57.83)    3.20                61
 11/24/2018   10:39:42   ( -68.41,-161.30) 11/24/2018   10:40:41  ( -68.43,-161.28)    1.95                59
 11/24/2018   11:30:26   (  68.29,   6.17) 11/24/2018   11:30:09  (  68.26,   6.16)    3.54                17
 11/24/2018   12:20:58   ( -67.67, 174.26) 11/24/2018   12:19:47  ( -67.70, 173.15)   47.16                71
 11/27/2018   02:56:36   ( -68.35, -45.45) 11/27/2018   02:57:09  ( -68.33, -45.50)    2.99                33
 11/27/2018   03:47:20   (  68.22, 122.02) 11/27/2018   03:46:36  (  68.21, 122.00)    1.83                44
 11/29/2018   18:22:52   (  68.59, -97.31) 11/29/2018   18:24:03  (  68.55, -96.97)   14.50                71
 11/29/2018   19:13:30   ( -68.28,  70.40) 11/29/2018   19:13:36  ( -68.28,  70.33)    2.76                 6
 11/29/2018   20:04:14   (  68.16,-122.14) 11/29/2018   20:03:03  (  68.16,-122.17)    1.16                71