Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 7 7.  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)
 07/08/2017   10:39:10   (  69.02,  18.01) 07/08/2017   10:40:19  (  68.91,  19.38)   55.85                69
 07/08/2017   11:29:40   ( -68.30,-173.71) 07/08/2017   11:29:58  ( -68.31,-173.74)    1.33                18
 07/08/2017   12:20:24   (  68.17,  -6.24) 07/08/2017   12:19:25  (  68.20,  -6.23)    3.37                59
 07/11/2017   02:55:53   (  68.40, 134.61) 07/11/2017   02:57:01  (  68.39, 134.59)    2.08                68
 07/11/2017   03:46:34   ( -68.27, -57.89) 07/11/2017   03:46:31  ( -68.28, -57.90)    2.04                 3
 07/11/2017   04:37:14   (  67.92, 109.85) 07/11/2017   04:36:02  (  67.95, 109.35)   21.18                72
 07/13/2017   19:12:47   (  68.37,-109.57) 07/13/2017   19:13:35  (  68.38,-109.56)    0.92                48
 07/13/2017   20:03:28   ( -68.23,  57.92) 07/13/2017   20:03:06  ( -68.23,  57.89)    1.70                22
 07/13/2017   20:53:55   (  67.19,-133.49) 07/13/2017   20:52:48  (  67.27,-135.56)   89.43                67
 07/16/2017   11:29:41   (  68.35,   6.24) 07/16/2017   11:30:11  (  68.34,   6.24)    0.80                30
 07/16/2017   12:20:22   ( -68.20, 173.74) 07/16/2017   12:19:42  ( -68.19, 173.70)    2.17                40
 07/19/2017   02:56:02   ( -69.07, -46.27) 07/19/2017   02:57:11  ( -68.94, -44.82)   59.98                69
 07/19/2017   03:46:34   (  68.32, 122.04) 07/19/2017   03:46:47  (  68.32, 122.07)    1.20                13
 07/19/2017   04:37:15   ( -68.17, -70.45) 07/19/2017   04:36:18  ( -68.18, -70.47)    1.12                57