Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 10 15.  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)
 10/15/2018   10:39:57   (  69.09,  17.88) 10/15/2018   10:41:06  (  69.01,  19.25)   55.24                69
 10/15/2018   11:30:27   ( -68.37,-173.84) 10/15/2018   11:30:45  ( -68.40,-173.88)    3.16                18
 10/15/2018   12:21:12   (  68.29,  -6.43) 10/15/2018   12:20:12  (  68.29,  -6.36)    2.76                60
 10/18/2018   02:56:40   (  68.46, 134.49) 10/18/2018   02:57:42  (  68.47, 134.47)    1.58                62
 10/18/2018   03:47:21   ( -68.33, -58.02) 10/18/2018   03:47:12  ( -68.36, -58.03)    3.41                 9
 10/18/2018   04:37:57   (  67.76, 109.99) 10/18/2018   04:36:46  (  67.85, 109.02)   42.26                71
 10/20/2018   19:13:33   (  68.42,-109.70) 10/20/2018   19:14:08  (  68.40,-109.73)    2.73                35
 10/20/2018   20:04:14   ( -68.29,  57.79) 10/20/2018   20:03:38  ( -68.30,  57.78)    0.68                36
 10/23/2018   10:39:50   ( -68.89,-161.86) 10/23/2018   10:41:01  ( -68.82,-160.97)   36.75                71
 10/23/2018   11:30:27   (  68.39,   6.11) 10/23/2018   11:30:34  (  68.36,   6.12)    3.36                 7
 10/23/2018   12:21:08   ( -68.26, 173.60) 10/23/2018   12:20:04  ( -68.26, 173.63)    1.05                64
 10/26/2018   02:56:37   ( -68.49, -45.55) 10/26/2018   02:57:32  ( -68.48, -45.50)    2.75                55
 10/26/2018   03:47:20   (  68.31, 121.99) 10/26/2018   03:47:00  (  68.29, 121.93)    3.01                20
 10/26/2018   04:37:50   ( -67.58, -69.79) 10/26/2018   04:36:40  ( -67.64, -71.20)   60.15                70
 10/28/2018   18:23:06   (  69.46, -98.43) 10/28/2018   18:24:12  (  69.37, -96.10)   91.44                66
 10/28/2018   19:13:30   ( -68.41,  70.32) 10/28/2018   19:13:58  ( -68.38,  70.29)    3.15                28
 10/28/2018   20:04:14   (  68.28,-122.21) 10/28/2018   20:03:24  (  68.31,-122.16)    3.52                50