Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 3 30.  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)
 03/31/2017   19:12:42   ( -68.36,  70.42) 03/31/2017   19:13:20  ( -68.37,  70.47)    2.43                38
 03/31/2017   20:03:25   (  68.19,-122.06) 03/31/2017   20:02:48  (  68.20,-122.08)    1.81                37
 04/03/2017   10:39:04   (  68.87,  18.18) 04/03/2017   10:40:14  (  68.74,  19.18)   42.76                70
 04/03/2017   11:29:37   ( -68.29,-173.73) 04/03/2017   11:29:50  ( -68.30,-173.73)    0.93                13
 04/03/2017   12:20:21   (  68.18,  -6.28) 04/03/2017   12:19:17  (  68.19,  -6.21)    2.83                64
 04/06/2017   02:55:51   (  68.39, 134.60) 04/06/2017   02:56:49  (  68.39, 134.63)    1.16                58
 04/06/2017   03:46:32   ( -68.23, -57.88) 04/06/2017   03:46:20  ( -68.23, -57.93)    2.00                12
 04/06/2017   04:37:06   (  67.58, 110.23) 04/06/2017   04:35:56  (  67.61, 108.99)   52.60                70
 04/08/2017   19:12:46   (  68.33,-109.56) 04/08/2017   19:13:19  (  68.30,-109.59)    3.37                33
 04/08/2017   20:03:28   ( -68.22,  57.89) 04/08/2017   20:02:49  ( -68.20,  57.92)    2.88                39
 04/11/2017   10:39:04   ( -68.80,-161.73) 04/11/2017   10:40:15  ( -68.66,-160.91)   36.58                71
 04/11/2017   11:29:40   (  68.27,   6.28) 04/11/2017   11:29:47  (  68.26,   6.25)    1.82                 7
 04/11/2017   12:20:22   ( -68.17, 173.73) 04/11/2017   12:19:17  ( -68.16, 173.76)    1.31                65