Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 2 20.  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)
 02/20/2019   10:39:19   (  68.37,  18.74) 02/20/2019   10:40:24  (  68.36,  18.70)    1.98                65
 02/20/2019   11:30:00   ( -68.25,-173.78) 02/20/2019   11:29:54  ( -68.25,-173.80)    0.59                 6
 02/20/2019   12:20:38   (  67.79,  -5.90) 02/20/2019   12:19:26  (  67.86,  -6.61)   30.89                72
 02/23/2019   02:56:12   (  68.33, 134.57) 02/23/2019   02:56:53  (  68.36, 134.58)    3.35                41
 02/23/2019   03:46:53   ( -68.20, -57.95) 02/23/2019   03:46:24  ( -68.19, -57.98)    1.62                29
 02/25/2019   18:22:36   ( -69.21,  81.84) 02/25/2019   18:23:44  ( -69.08,  83.71)   75.28                68
 02/25/2019   19:13:05   (  68.28,-109.60) 02/25/2019   19:13:23  (  68.29,-109.62)    1.64                18
 02/25/2019   20:03:46   ( -68.15,  57.89) 02/25/2019   20:02:54  ( -68.14,  57.83)    3.15                52
 02/28/2019   10:39:15   ( -68.42,-161.31) 02/28/2019   10:40:25  ( -68.41,-161.25)    3.15                70
 02/28/2019   11:29:58   (  68.24,   6.23) 02/28/2019   11:29:53  (  68.23,   6.18)    2.31                 5
 02/28/2019   12:20:37   ( -68.00, 173.85) 02/28/2019   12:19:25  ( -68.02, 173.57)   12.04                72
 03/03/2019   02:56:06   ( -68.33, -45.41) 03/03/2019   02:56:54  ( -68.34, -45.45)    2.21                48
 03/03/2019   03:46:50   (  68.20, 122.06) 03/03/2019   03:46:21  (  68.22, 122.05)    2.16                29
 03/03/2019   04:37:14   ( -67.15, -69.35) 03/03/2019   04:36:07  ( -67.23, -71.45)   91.09                67
 03/05/2019   18:22:33   (  69.23, -98.17) 03/05/2019   18:23:40  (  69.15, -96.19)   78.41                67
 03/05/2019   19:12:59   ( -68.29,  70.41) 03/05/2019   19:13:24  ( -68.28,  70.35)    2.93                25
 03/05/2019   20:03:43   (  68.16,-122.12) 03/05/2019   20:02:51  (  68.15,-122.15)    1.95                52