Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2018 12 8.  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)
 12/09/2018   03:21:00   ( -68.30, -51.70) 12/09/2018   03:21:43  ( -68.30, -51.67)    1.16                43
 12/09/2018   04:11:44   (  68.17, 115.78) 12/09/2018   04:11:11  (  68.15, 115.79)    2.53                33
 12/11/2018   18:47:28   (  69.22,-104.47) 12/11/2018   18:48:35  (  69.09,-102.47)   80.50                67
 12/11/2018   19:37:54   ( -68.28,  64.11) 12/11/2018   19:38:18  ( -68.26,  64.13)    2.80                24
 12/11/2018   20:28:37   (  68.10,-128.35) 12/11/2018   20:27:46  (  68.10,-128.41)    2.53                51
 12/14/2018   11:04:11   (  68.61,  12.14) 12/14/2018   11:05:23  (  68.50,  12.64)   23.94                72
 12/14/2018   11:54:48   ( -68.26, 179.91) 12/14/2018   11:54:56  ( -68.24, 179.95)    3.07                 8
 12/14/2018   12:45:31   (  68.08, -12.55) 12/14/2018   12:44:24  (  68.07, -12.59)    2.03                67
 12/17/2018   03:21:00   (  68.33, 128.29) 12/17/2018   03:22:07  (  68.33, 128.27)    0.92                67
 12/17/2018   04:11:41   ( -68.19, -64.21) 12/17/2018   04:11:38  ( -68.18, -64.28)    2.54                 3
 12/17/2018   05:02:21   (  67.85, 103.52) 12/17/2018   05:01:08  (  67.91, 103.04)   20.92                73
 12/19/2018   19:37:53   (  68.31,-115.92) 12/19/2018   19:38:51  (  68.30,-115.96)    2.57                58
 12/19/2018   20:28:35   ( -68.22,  51.52) 12/19/2018   20:28:21  ( -68.22,  51.58)    2.54                14
 12/19/2018   21:19:08   (  67.51,-140.29) 12/19/2018   21:17:58  (  67.54,-141.56)   53.99                70
 12/22/2018   11:54:47   (  68.30,  -0.12) 12/22/2018   11:55:39  (  68.29,  -0.16)    2.24                52
 12/22/2018   12:45:29   ( -68.21, 167.32) 12/22/2018   12:45:09  ( -68.22, 167.38)    2.71                20
 12/22/2018   13:35:58   (  67.28, -24.24) 12/22/2018   13:34:50  (  67.31, -26.01)   76.04                68