Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 31.  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)
 01/01/2018   18:47:40   ( -68.40,  76.73) 01/01/2018   18:48:43  ( -68.41,  76.71)    1.23                63
 01/01/2018   19:38:24   (  68.28,-115.81) 01/01/2018   19:38:10  (  68.30,-115.78)    1.97                14
 01/01/2018   20:28:58   ( -67.76,  52.16) 01/01/2018   20:27:47  ( -67.80,  51.27)   37.65                71
 01/04/2018   11:04:32   ( -68.36,-167.44) 01/04/2018   11:05:12  ( -68.38,-167.45)    1.86                40
 01/04/2018   11:55:16   (  68.24,   0.01) 01/04/2018   11:54:39  (  68.26,   0.06)    2.79                37
 01/07/2018   02:30:54   (  69.00, 140.15) 01/07/2018   02:32:04  (  68.89, 141.43)   52.49                70
 01/07/2018   03:21:25   ( -68.32, -51.62) 01/07/2018   03:21:42  ( -68.34, -51.62)    2.29                17
 01/07/2018   04:12:09   (  68.21, 115.83) 01/07/2018   04:11:09  (  68.22, 115.89)    3.09                60
 01/09/2018   18:47:37   (  68.43,-103.31) 01/09/2018   18:48:42  (  68.40,-103.30)    3.32                65
 01/09/2018   19:38:18   ( -68.28,  64.21) 01/09/2018   19:38:12  ( -68.30,  64.21)    2.17                 6
 01/09/2018   20:28:56   (  67.84,-127.94) 01/09/2018   20:27:44  (  67.90,-128.61)   28.80                72
 01/12/2018   11:04:29   (  68.34,  12.58) 01/12/2018   11:05:12  (  68.35,  12.52)    2.99                43
 01/12/2018   11:55:11   ( -68.23,-179.97) 01/12/2018   11:54:42  ( -68.25,-179.97)    1.46                29