Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 2 28.  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)
 03/02/2018   19:12:33   ( -68.32,  70.48) 03/02/2018   19:13:29  ( -68.31,  70.43)    2.46                56
 03/02/2018   20:03:17   (  68.19,-122.04) 03/02/2018   20:02:56  (  68.20,-122.06)    1.48                21
 03/02/2018   20:53:46   ( -67.42,  46.23) 03/02/2018   20:52:37  ( -67.48,  44.75)   63.80                69
 03/05/2018   11:29:25   ( -68.28,-173.67) 03/05/2018   11:29:59  ( -68.28,-173.73)    2.31                34
 03/05/2018   12:20:09   (  68.14,  -6.20) 03/05/2018   12:19:26  (  68.16,  -6.22)    2.32                43
 03/08/2018   02:55:43   (  68.74, 134.18) 03/08/2018   02:56:54  (  68.61, 134.92)   33.18                71
 03/08/2018   03:46:18   ( -68.28, -57.90) 03/08/2018   03:46:28  ( -68.29, -57.84)    2.62                10
 03/08/2018   04:37:01   (  68.10, 109.63) 03/08/2018   04:35:56  (  68.11, 109.60)    1.87                65
 03/10/2018   19:12:28   (  68.32,-109.49) 03/10/2018   19:13:28  (  68.32,-109.55)    2.48                60
 03/10/2018   20:03:10   ( -68.24,  57.94) 03/10/2018   20:02:58  ( -68.22,  57.96)    2.21                12
 03/10/2018   20:53:44   (  67.57,-133.93) 03/10/2018   20:52:34  (  67.60,-135.12)   50.21                70
 03/13/2018   11:29:19   (  68.28,   6.34) 03/13/2018   11:29:56  (  68.29,   6.30)    1.94                37
 03/13/2018   12:20:01   ( -68.19, 173.77) 03/13/2018   12:19:26  ( -68.19, 173.82)    1.83                35