Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2017 2 19.  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)
 02/19/2017   18:22:32   ( -68.76,  82.48) 02/19/2017   18:23:43  ( -68.66,  83.13)   28.60                71
 02/19/2017   19:13:10   (  68.30,-109.61) 02/19/2017   19:13:14  (  68.32,-109.63)    2.74                 4
 02/19/2017   20:03:51   ( -68.18,  57.87) 02/19/2017   20:02:45  ( -68.16,  57.81)    2.81                66
 02/22/2017   10:39:19   ( -68.41,-161.28) 02/22/2017   10:40:17  ( -68.44,-161.27)    2.93                58
 02/22/2017   11:30:03   (  68.28,   6.20) 02/22/2017   11:29:45  (  68.26,   6.17)    1.82                18
 02/22/2017   12:20:34   ( -67.61, 174.34) 02/22/2017   12:19:24  ( -67.66, 173.10)   52.76                70
 02/25/2017   02:56:11   ( -68.39, -45.47) 02/25/2017   02:56:48  ( -68.36, -45.49)    2.78                37
 02/25/2017   03:46:55   (  68.26, 122.00) 02/25/2017   03:46:15  (  68.24, 122.02)    1.55                40
 02/27/2017   18:22:32   (  68.98, -97.81) 02/27/2017   18:23:42  (  68.86, -96.63)   48.84                70
 02/27/2017   19:13:03   ( -68.31,  70.40) 02/27/2017   19:13:20  ( -68.32,  70.34)    2.98                17
 02/27/2017   20:03:47   (  68.19,-122.13) 02/27/2017   20:02:47  (  68.20,-122.16)    2.41                60
 03/02/2017   10:39:15   (  68.43,  18.70) 03/02/2017   10:40:22  (  68.41,  18.68)    2.41                67
 03/02/2017   11:29:56   ( -68.29,-173.80) 03/02/2017   11:29:52  ( -68.32,-173.80)    3.09                 4
 03/02/2017   12:20:35   (  67.90,  -6.00) 03/02/2017   12:19:23  (  67.98,  -6.57)   25.23                72
 03/05/2017   02:56:07   (  68.37, 134.57) 03/05/2017   02:56:55  (  68.39, 134.51)    3.35                48