Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 3 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)
 03/02/2018   19:12:34   ( -68.34,  70.46) 03/02/2018   19:13:29  ( -68.35,  70.47)    1.02                55
 03/02/2018   20:03:18   (  68.21,-122.06) 03/02/2018   20:02:57  (  68.18,-122.08)    2.77                21
 03/02/2018   20:53:47   ( -67.44,  46.21) 03/02/2018   20:52:37  ( -67.52,  44.79)   61.18                70
 03/05/2018   11:29:26   ( -68.30,-173.70) 03/05/2018   11:30:00  ( -68.27,-173.74)    2.95                34
 03/05/2018   12:20:10   (  68.16,  -6.22) 03/05/2018   12:19:27  (  68.16,  -6.23)    0.51                43
 03/08/2018   02:55:43   (  68.76, 134.15) 03/08/2018   02:56:54  (  68.62, 134.93)   34.81                71
 03/08/2018   03:46:17   ( -68.25, -57.86) 03/08/2018   03:46:29  ( -68.24, -57.90)    1.89                12
 03/08/2018   04:37:01   (  68.12, 109.61) 03/08/2018   04:35:56  (  68.12, 109.61)    0.31                65
 03/10/2018   19:12:28   (  68.34,-109.52) 03/10/2018   19:13:28  (  68.35,-109.52)    1.24                60
 03/10/2018   20:03:09   ( -68.20,  57.98) 03/10/2018   20:02:59  ( -68.20,  57.93)    2.29                10
 03/10/2018   20:53:44   (  67.59,-133.96) 03/10/2018   20:52:34  (  67.63,-135.09)   48.00                70
 03/13/2018   11:29:20   (  68.30,   6.32) 03/13/2018   11:29:58  (  68.29,   6.29)    1.34                38
 03/13/2018   12:20:02   ( -68.21, 173.75) 03/13/2018   12:19:28  ( -68.20, 173.81)    3.22                34