Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2018 12 30.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-20) NOAA-20 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 12/30/2018   11:04:21   (  68.31,  12.49) 12/30/2018   11:05:15  (  68.30,  12.45)    1.70                54
 12/30/2018   11:55:02   ( -68.17, 179.99) 12/30/2018   11:54:45  ( -68.19, 179.95)    2.69                17
 12/30/2018   12:45:32   (  67.34, -11.68) 12/30/2018   12:44:23  (  67.41, -13.30)   69.54                69
 01/02/2019   03:21:17   (  68.29, 128.28) 01/02/2019   03:21:44  (  68.26, 128.28)    3.35                27
 01/02/2019   04:11:58   ( -68.15, -64.22) 01/02/2019   04:11:14  ( -68.15, -64.21)    0.61                44
 01/04/2019   18:47:33   ( -68.56,  76.39) 01/04/2019   18:48:44  ( -68.51,  76.81)   18.14                71
 01/04/2019   19:38:13   (  68.22,-115.87) 01/04/2019   19:38:14  (  68.23,-115.88)    0.53                 1
 01/04/2019   20:28:55   ( -68.13,  51.57) 01/04/2019   20:27:44  ( -68.12,  51.63)    2.80                71
 01/07/2019   11:04:26   ( -68.33,-167.54) 01/07/2019   11:05:17  ( -68.31,-167.54)    1.80                51
 01/07/2019   11:55:10   (  68.21,  -0.09) 01/07/2019   11:54:44  (  68.20,  -0.04)    2.71                26
 01/07/2019   12:45:36   ( -67.25, 168.41) 01/07/2019   12:44:28  ( -67.31, 166.58)   78.57                68
 01/10/2019   02:30:56   (  69.22, 139.71) 01/10/2019   02:32:04  (  69.11, 141.70)   79.66                68
 01/10/2019   03:21:22   ( -68.26, -51.69) 01/10/2019   03:21:47  ( -68.29, -51.69)    3.11                25
 01/10/2019   04:12:06   (  68.15, 115.76) 01/10/2019   04:11:14  (  68.17, 115.81)    3.08                52
 01/12/2019   18:47:36   (  68.35,-103.36) 01/12/2019   18:48:46  (  68.37,-103.35)    1.56                70
 01/12/2019   19:38:17   ( -68.20,  64.16) 01/12/2019   19:38:17  ( -68.22,  64.09)    3.46                 0
 01/12/2019   20:28:58   (  67.93,-128.19) 01/12/2019   20:27:46  (  67.98,-128.53)   15.78                72