Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 27.  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)
 08/28/2017   02:56:25   (  68.40, 134.53) 08/28/2017   02:57:18  (  68.42, 134.53)    2.04                53
 08/28/2017   03:47:07   ( -68.31, -58.04) 08/28/2017   03:46:48  ( -68.30, -57.98)    2.46                19
 08/28/2017   04:37:37   (  67.43, 110.36) 08/28/2017   04:36:28  (  67.47, 108.70)   70.79                69
 08/30/2017   19:13:22   (  68.38,-109.69) 08/30/2017   19:13:48  (  68.38,-109.64)    2.16                26
 08/30/2017   20:04:03   ( -68.24,  57.82) 08/30/2017   20:03:19  ( -68.21,  57.79)    2.81                44
 09/02/2017   10:39:37   ( -68.65,-161.58) 09/02/2017   10:40:48  ( -68.56,-161.19)   18.79                71
 09/02/2017   11:30:17   (  68.32,   6.16) 09/02/2017   11:30:17  (  68.34,   6.19)    3.06                 0
 09/02/2017   12:20:58   ( -68.17, 173.67) 09/02/2017   12:19:48  ( -68.18, 173.63)    1.80                70
 09/05/2017   02:56:30   ( -68.43, -45.52) 09/05/2017   02:57:20  ( -68.41, -45.49)    1.92                50
 09/05/2017   03:47:13   (  68.26, 122.01) 09/05/2017   03:46:48  (  68.24, 121.95)    2.66                25
 09/05/2017   04:37:40   ( -67.35, -69.56) 09/05/2017   04:36:31  ( -67.41, -71.37)   77.79                69
 09/07/2017   18:23:00   (  69.32, -98.29) 09/07/2017   18:24:07  (  69.19, -96.27)   80.72                67
 09/07/2017   19:13:26   ( -68.36,  70.33) 09/07/2017   19:13:50  ( -68.37,  70.33)    0.30                24
 09/07/2017   20:04:10   (  68.25,-122.22) 09/07/2017   20:03:17  (  68.25,-122.16)    2.31                53
 09/10/2017   10:39:41   (  68.46,  18.65) 09/10/2017   10:40:49  (  68.47,  18.70)    2.65                68
 09/10/2017   11:30:22   ( -68.30,-173.83) 09/10/2017   11:30:20  ( -68.31,-173.86)    1.58                 2
 09/10/2017   12:21:02   (  67.97,  -6.11) 09/10/2017   12:19:50  (  68.03,  -6.55)   19.39                72