Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 10 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)
 10/20/2018   19:13:33   (  68.41,-109.67) 10/20/2018   19:14:10  (  68.41,-109.73)    2.48                37
 10/20/2018   20:04:14   ( -68.28,  57.81) 10/20/2018   20:03:40  ( -68.30,  57.77)    2.81                34
 10/23/2018   10:39:53   ( -69.04,-162.06) 10/23/2018   10:41:03  ( -68.90,-160.88)   49.32                70
 10/23/2018   11:30:27   (  68.37,   6.14) 10/23/2018   11:30:37  (  68.39,   6.13)    2.33                10
 10/23/2018   12:21:08   ( -68.24, 173.62) 10/23/2018   12:20:08  ( -68.23, 173.58)    2.08                60
 10/26/2018   02:56:37   ( -68.47, -45.53) 10/26/2018   02:57:37  ( -68.50, -45.50)    3.21                60
 10/26/2018   03:47:21   (  68.34, 121.95) 10/26/2018   03:47:05  (  68.32, 121.93)    2.47                16
 10/26/2018   04:37:53   ( -67.73, -69.96) 10/26/2018   04:36:42  ( -67.83, -71.01)   45.50                71
 10/28/2018   19:13:30   ( -68.44,  70.28) 10/28/2018   19:14:04  ( -68.42,  70.30)    1.98                34
 10/28/2018   20:04:14   (  68.31,-122.25) 10/28/2018   20:03:31  (  68.30,-122.21)    2.39                43
 10/31/2018   10:39:47   (  68.76,  18.30) 10/31/2018   10:40:58  (  68.66,  18.84)   24.68                71
 10/31/2018   11:30:23   ( -68.36,-173.85) 10/31/2018   11:30:32  ( -68.35,-173.91)    2.85                 9
 10/31/2018   12:21:07   (  68.23,  -6.38) 10/31/2018   12:19:59  (  68.22,  -6.42)    2.41                68