Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2018 2 26.  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)
 02/28/2018   02:55:45   ( -68.56, -45.61) 02/28/2018   02:56:57  ( -68.49, -45.24)   16.91                72
 02/28/2018   03:46:26   (  68.26, 122.09) 02/28/2018   03:46:26  (  68.28, 122.15)    2.87                 0
 02/28/2018   04:37:06   ( -68.09, -70.37) 02/28/2018   04:35:57  ( -68.11, -70.42)    3.17                69
 03/02/2018   19:12:34   ( -68.35,  70.45) 03/02/2018   19:13:31  ( -68.34,  70.45)    1.65                57
 03/02/2018   20:03:18   (  68.22,-122.07) 03/02/2018   20:02:58  (  68.23,-122.04)    1.89                20
 03/02/2018   20:53:48   ( -67.50,  46.13) 03/02/2018   20:52:38  ( -67.56,  44.83)   56.11                70
 03/05/2018   11:29:26   ( -68.30,-173.71) 03/05/2018   11:30:03  ( -68.32,-173.70)    2.40                37
 03/05/2018   12:20:10   (  68.17,  -6.24) 03/05/2018   12:19:31  (  68.16,  -6.25)    1.94                39
 03/08/2018   02:55:47   (  68.98, 133.85) 03/08/2018   02:56:56  (  68.89, 135.24)   56.34                69
 03/08/2018   03:46:17   ( -68.26, -57.87) 03/08/2018   03:46:35  ( -68.29, -57.87)    3.60                18
 03/08/2018   04:37:01   (  68.13, 109.60) 03/08/2018   04:36:03  (  68.12, 109.57)    1.75                58
 03/10/2018   19:12:28   (  68.35,-109.53) 03/10/2018   19:13:38  (  68.39,-109.53)    3.54                70
 03/10/2018   20:03:09   ( -68.21,  57.97) 03/10/2018   20:03:09  ( -68.23,  57.92)    2.72                 0
 03/10/2018   20:53:51   (  67.99,-134.44) 03/10/2018   20:52:38  (  68.00,-134.70)   11.23                73