Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 20.  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, 165.51) 12/22/2017   00:53:18  (  68.36, 165.52)    3.18                41
 12/22/2017   01:43:16   ( -68.24, -26.97) 12/22/2017   01:42:48  ( -68.25, -26.98)    0.94                28
 12/24/2017   17:57:54   ( -69.23,  88.13) 12/24/2017   17:59:02  ( -69.13,  89.98)   74.18                68
 12/24/2017   18:48:21   (  68.32,-103.34) 12/24/2017   18:48:41  (  68.35,-103.34)    3.52                20
 12/24/2017   19:39:01   ( -68.22,  64.12) 12/24/2017   19:38:11  ( -68.24,  64.17)    3.17                50
 12/27/2017   11:53:24   ( -68.46,-179.77) 12/27/2017   11:54:36  ( -68.45,-179.71)    2.60                72
 12/27/2017   12:44:05   (  68.30, -12.25) 12/27/2017   12:44:04  (  68.28, -12.27)    2.57                 1
 12/27/2017   13:34:45   ( -68.20, 155.21) 12/27/2017   13:33:34  ( -68.18, 155.24)    3.04                71
 12/30/2017   05:49:08   ( -68.38, -88.61) 12/30/2017   05:50:00  ( -68.37, -88.64)    1.62                52
 12/30/2017   06:39:50   (  68.28,  78.84) 12/30/2017   06:39:27  (  68.26,  78.87)    3.05                23
 12/30/2017   07:30:17   ( -67.48,-112.84) 12/30/2017   07:29:08  ( -67.54,-114.33)   63.97                69
 01/01/2018   22:54:31   (  69.43,-166.30) 01/01/2018   22:55:37  (  69.34,-163.89)   94.74                66
 01/01/2018   23:44:53   ( -68.35,   2.49) 01/01/2018   23:45:23  ( -68.35,   2.49)    0.74                30
 01/02/2018   00:35:34   (  68.21, 169.99) 01/02/2018   00:34:50  (  68.23, 169.99)    2.45                44