Simultaneous Nadir Overpasses (SNOs) between NPP and TERRA
TLE Epoch: 2019 3 18.  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)
 03/19/2019   02:55:57   ( -68.36, -45.42) 03/19/2019   02:57:05  ( -68.35, -45.46)    1.66                68
 03/19/2019   03:46:41   (  68.23, 122.06) 03/19/2019   03:46:32  (  68.24, 122.05)    1.53                 9
 03/19/2019   04:37:18   ( -67.89, -70.20) 03/19/2019   04:36:05  ( -67.97, -70.64)   20.53                73
 03/21/2019   19:12:50   ( -68.34,  70.39) 03/21/2019   19:13:35  ( -68.32,  70.38)    1.53                45
 03/21/2019   20:03:34   (  68.20,-122.13) 03/21/2019   20:03:02  (  68.20,-122.12)    0.78                32
 03/24/2019   10:39:15   (  69.14,  17.77) 03/24/2019   10:40:23  (  69.05,  19.53)   70.56                68
 03/24/2019   11:29:43   ( -68.31,-173.80) 03/24/2019   11:30:05  ( -68.28,-173.79)    3.22                22
 03/24/2019   12:20:27   (  68.18,  -6.33) 03/24/2019   12:19:32  (  68.16,  -6.29)    2.94                55
 03/27/2019   02:55:53   (  68.37, 134.58) 03/27/2019   02:57:03  (  68.39, 134.58)    1.67                70
 03/27/2019   03:46:34   ( -68.23, -57.93) 03/27/2019   03:46:34  ( -68.24, -57.97)    1.67                 0
 03/27/2019   04:37:15   (  67.95, 109.75) 03/27/2019   04:36:03  (  68.00, 109.40)   15.43                72
 03/29/2019   19:12:46   (  68.35,-109.62) 03/29/2019   19:13:33  (  68.33,-109.61)    2.87                47
 03/29/2019   20:03:27   ( -68.21,  57.88) 03/29/2019   20:03:03  ( -68.23,  57.91)    2.80                24
 03/29/2019   20:53:53   (  67.12,-133.48) 03/29/2019   20:52:46  (  67.21,-135.61)   92.53                67