Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 4 1.  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)
 04/03/2017   10:39:03   (  68.84,  18.23) 04/03/2017   10:40:14  (  68.72,  19.16)   39.40                71
 04/03/2017   11:29:36   ( -68.26,-173.69) 04/03/2017   11:29:50  ( -68.28,-173.75)    3.45                14
 04/03/2017   12:20:20   (  68.14,  -6.23) 04/03/2017   12:19:17  (  68.17,  -6.24)    2.71                63
 04/06/2017   02:55:50   (  68.35, 134.65) 04/06/2017   02:56:49  (  68.36, 134.59)    2.36                59
 04/06/2017   03:46:32   ( -68.25, -57.91) 04/06/2017   03:46:19  ( -68.25, -57.90)    0.40                13
 04/06/2017   04:37:05   (  67.54, 110.28) 04/06/2017   04:35:55  (  67.63, 109.03)   54.00                70
 04/08/2017   19:12:45   (  68.29,-109.51) 04/08/2017   19:13:18  (  68.31,-109.57)    3.42                33
 04/08/2017   20:03:27   ( -68.19,  57.94) 04/08/2017   20:02:48  ( -68.21,  57.94)    2.27                39
 04/11/2017   10:39:04   ( -68.77,-161.68) 04/11/2017   10:40:15  ( -68.65,-160.92)   33.61                71
 04/11/2017   11:29:41   (  68.29,   6.26) 04/11/2017   11:29:46  (  68.31,   6.31)    3.30                 5
 04/11/2017   12:20:22   ( -68.13, 173.78) 04/11/2017   12:19:17  ( -68.16, 173.76)    2.64                65
 04/14/2017   02:55:51   ( -68.34, -45.35) 04/14/2017   02:56:47  ( -68.36, -45.38)    2.66                56
 04/14/2017   03:46:35   (  68.24, 122.09) 04/14/2017   03:46:14  (  68.24, 122.12)    1.28                21
 04/14/2017   04:37:05   ( -67.49, -69.66) 04/14/2017   04:35:55  ( -67.53, -71.08)   60.34                70