Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2018 1 9.  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)
 01/09/2018   18:47:38   (  68.40,-103.28) 01/09/2018   18:48:42  (  68.38,-103.32)    2.80                64
 01/09/2018   19:38:19   ( -68.26,  64.22) 01/09/2018   19:38:12  ( -68.26,  64.18)    2.05                 7
 01/09/2018   20:28:56   (  67.76,-127.84) 01/09/2018   20:27:45  (  67.82,-128.69)   36.49                71
 01/12/2018   11:04:33   (  68.38,  12.51) 01/12/2018   11:05:11  (  68.38,  12.56)    2.34                38
 01/12/2018   11:55:14   ( -68.24,-179.99) 01/12/2018   11:54:42  ( -68.21, 180.00)    3.05                32
 01/15/2018   02:30:55   ( -69.07, -39.95) 01/15/2018   02:32:04  ( -68.98, -38.45)   60.53                69
 01/15/2018   03:21:26   (  68.31, 128.36) 01/15/2018   03:21:40  (  68.32, 128.37)    0.56                14
 01/15/2018   04:12:07   ( -68.17, -64.13) 01/15/2018   04:11:11  ( -68.15, -64.19)    2.95                56
 01/17/2018   18:47:37   ( -68.41,  76.69) 01/17/2018   18:48:42  ( -68.42,  76.73)    1.50                65
 01/17/2018   19:38:20   (  68.25,-115.78) 01/17/2018   19:38:10  (  68.25,-115.83)    1.97                10
 01/17/2018   20:28:56   ( -67.83,  52.06) 01/17/2018   20:27:44  ( -67.92,  51.42)   28.96                72
 01/20/2018   11:04:31   ( -68.34,-167.45) 01/20/2018   11:05:12  ( -68.34,-167.48)    1.34                41
 01/20/2018   11:55:15   (  68.23,   0.00) 01/20/2018   11:54:39  (  68.23,   0.03)    1.14                36
 01/23/2018   02:30:54   (  68.96, 140.17) 01/23/2018   02:32:03  (  68.87, 141.42)   50.77                69