Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 8 29.  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)
 08/30/2017   19:13:21   (  68.37,-109.67) 08/30/2017   19:13:48  (  68.34,-109.69)    3.27                27
 08/30/2017   20:04:02   ( -68.22,  57.84) 08/30/2017   20:03:18  ( -68.23,  57.81)    1.21                44
 09/02/2017   10:39:37   ( -68.64,-161.56) 09/02/2017   10:40:48  ( -68.57,-161.17)   17.42                71
 09/02/2017   11:30:17   (  68.30,   6.18) 09/02/2017   11:30:18  (  68.29,   6.13)    2.21                 1
 09/02/2017   12:20:59   ( -68.21, 173.62) 09/02/2017   12:19:48  ( -68.19, 173.64)    2.97                71
 09/05/2017   02:56:30   ( -68.42, -45.51) 09/05/2017   02:57:20  ( -68.41, -45.49)    0.80                50
 09/05/2017   03:47:14   (  68.30, 121.95) 09/05/2017   03:46:47  (  68.30, 122.02)    2.56                27
 09/05/2017   04:37:40   ( -67.34, -69.55) 09/05/2017   04:36:32  ( -67.35, -71.44)   80.89                68
 09/07/2017   18:23:00   (  69.31, -98.27) 09/07/2017   18:24:07  (  69.18, -96.28)   79.75                67
 09/07/2017   19:13:25   ( -68.36,  70.34) 09/07/2017   19:13:49  ( -68.35,  70.31)    1.03                24
 09/07/2017   20:04:09   (  68.24,-122.21) 09/07/2017   20:03:16  (  68.24,-122.18)    1.34                53
 09/10/2017   10:39:40   (  68.45,  18.66) 09/10/2017   10:40:48  (  68.44,  18.67)    1.33                68
 09/10/2017   11:30:21   ( -68.30,-173.83) 09/10/2017   11:30:19  ( -68.29,-173.89)    3.01                 2
 09/10/2017   12:21:01   (  67.97,  -6.10) 09/10/2017   12:19:49  (  68.00,  -6.58)   20.21                72