Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 21.  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)
 12/22/2017   00:52:37   (  68.39, 165.53) 12/22/2017   00:53:17  (  68.40, 165.57)    2.36                40
 12/22/2017   01:43:16   ( -68.24, -26.96) 12/22/2017   01:42:48  ( -68.24, -27.00)    2.01                28
 12/24/2017   17:57:54   ( -69.19,  88.19) 12/24/2017   17:59:02  ( -69.11,  89.96)   70.75                68
 12/24/2017   18:48:22   (  68.34,-103.35) 12/24/2017   18:48:41  (  68.34,-103.36)    0.51                19
 12/24/2017   19:39:02   ( -68.24,  64.11) 12/24/2017   19:38:11  ( -68.23,  64.15)    2.04                51
 12/27/2017   11:53:26   ( -68.44,-179.74) 12/27/2017   11:54:37  ( -68.43,-179.73)    0.92                71
 12/27/2017   12:44:07   (  68.28, -12.22) 12/27/2017   12:44:05  (  68.27, -12.29)    3.33                 2
 12/27/2017   13:34:47   ( -68.18, 155.24) 12/27/2017   13:33:35  ( -68.16, 155.22)    2.48                72
 12/30/2017   05:49:10   ( -68.38, -88.61) 12/30/2017   05:50:00  ( -68.36, -88.66)    3.50                50
 12/30/2017   06:39:51   (  68.23,  78.91) 12/30/2017   06:39:27  (  68.24,  78.85)    2.92                24
 12/30/2017   07:30:18   ( -67.42,-112.77) 12/30/2017   07:29:09  ( -67.47,-114.41)   70.15                69
 01/01/2018   22:54:32   (  69.34,-166.18) 01/01/2018   22:55:39  (  69.21,-164.06)   84.55                67
 01/01/2018   23:44:55   ( -68.32,   2.53) 01/01/2018   23:45:23  ( -68.33,   2.47)    2.80                28
 01/02/2018   00:35:37   (  68.23, 169.97) 01/02/2018   00:34:50  (  68.22, 169.97)    1.40                47