Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 11 19.  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)
 11/21/2018   18:22:57   ( -68.97,  82.20) 11/21/2018   18:24:07  ( -68.85,  83.35)   48.10                70
 11/21/2018   19:13:32   (  68.36,-109.68) 11/21/2018   19:13:41  (  68.34,-109.63)    2.70                 9
 11/21/2018   20:04:12   ( -68.17,  57.87) 11/21/2018   20:03:12  ( -68.18,  57.81)    2.64                60
 11/24/2018   10:39:42   ( -68.42,-161.31) 11/24/2018   10:40:41  ( -68.40,-161.30)    1.69                59
 11/24/2018   11:30:26   (  68.29,   6.17) 11/24/2018   11:30:08  (  68.29,   6.20)    1.42                18
 11/24/2018   12:20:57   ( -67.62, 174.32) 11/24/2018   12:19:47  ( -67.68, 173.12)   51.19                70
 11/27/2018   02:56:36   ( -68.35, -45.45) 11/27/2018   02:57:08  ( -68.34, -45.49)    1.82                32
 11/27/2018   03:47:20   (  68.23, 122.01) 11/27/2018   03:46:35  (  68.22, 122.02)    0.62                45
 11/29/2018   18:22:51   (  68.54, -97.25) 11/29/2018   18:24:03  (  68.48, -97.05)    9.96                72
 11/29/2018   19:13:31   ( -68.34,  70.33) 11/29/2018   19:13:34  ( -68.32,  70.39)    3.07                 3
 11/29/2018   20:04:14   (  68.17,-122.14) 11/29/2018   20:03:02  (  68.15,-122.17)    2.43                72
 12/02/2018   10:39:42   (  68.37,  18.74) 12/02/2018   10:40:29  (  68.40,  18.75)    3.45                47
 12/02/2018   11:30:23   ( -68.22,-173.76) 12/02/2018   11:30:00  ( -68.24,-173.81)    3.22                23
 12/02/2018   12:20:50   (  67.19,  -5.18) 12/02/2018   12:19:43  (  67.22,  -7.33)   92.61                67