Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 8 4.  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)
 08/04/2018   11:30:02   (  68.50,   5.98) 08/04/2018   11:31:13  (  68.47,   6.15)    8.27                71
 08/04/2018   12:20:42   ( -68.31, 173.55) 08/04/2018   12:20:44  ( -68.30, 173.59)    2.05                 2
 08/04/2018   13:11:25   (  68.13, -18.91) 08/04/2018   13:10:12  (  68.13, -18.97)    2.21                73
 08/07/2018   03:46:57   (  68.39, 121.89) 08/07/2018   03:47:43  (  68.39, 121.93)    2.06                46
 08/07/2018   04:37:38   ( -68.25, -70.61) 08/07/2018   04:37:14  ( -68.22, -70.63)    3.26                24
 08/07/2018   05:28:04   (  67.15,  98.04) 08/07/2018   05:26:57  (  67.21,  95.87)   94.02                67
 08/09/2018   19:13:25   ( -69.31,  69.10) 08/09/2018   19:14:32  ( -69.20,  71.18)   82.89                67
 08/09/2018   20:03:53   (  68.34,-122.27) 08/09/2018   20:04:13  (  68.31,-122.28)    3.46                20
 08/09/2018   20:54:34   ( -68.19,  45.23) 08/09/2018   20:53:43  ( -68.20,  45.23)    1.20                51
 08/12/2018   11:30:05   ( -68.40,-173.89) 08/12/2018   11:31:15  ( -68.40,-173.93)    1.72                70
 08/12/2018   12:20:49   (  68.28,  -6.44) 08/12/2018   12:20:42  (  68.29,  -6.43)    0.53                 7
 08/12/2018   13:11:27   ( -67.97, 161.28) 08/12/2018   13:10:15  ( -68.01, 160.88)   16.98                72
 08/15/2018   03:47:01   ( -68.40, -58.12) 08/15/2018   03:47:43  ( -68.38, -58.08)    2.39                42
 08/15/2018   04:37:44   (  68.23, 109.39) 08/15/2018   04:37:11  (  68.21, 109.36)    2.65                33
 08/17/2018   19:13:25   (  68.98,-110.46) 08/17/2018   19:14:35  (  68.86,-109.24)   50.75                70
 08/17/2018   20:03:57   ( -68.34,  57.71) 08/17/2018   20:04:13  ( -68.31,  57.72)    3.28                16
 08/17/2018   20:54:40   (  68.18,-134.78) 08/17/2018   20:53:40  (  68.19,-134.78)    1.42                60