Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2018 1 25.  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)
 01/25/2018   18:47:38   (  68.40,-103.31) 01/25/2018   18:48:40  (  68.42,-103.26)    3.12                62
 01/25/2018   19:38:19   ( -68.26,  64.18) 01/25/2018   19:38:11  ( -68.26,  64.18)    0.46                 8
 01/25/2018   20:28:56   (  67.76,-127.88) 01/25/2018   20:27:44  (  67.81,-128.70)   35.11                72
 01/28/2018   11:04:32   (  68.34,  12.53) 01/28/2018   11:05:10  (  68.34,  12.53)    0.34                38
 01/28/2018   11:55:13   ( -68.20,-179.97) 01/28/2018   11:54:41  ( -68.18, 179.97)    3.09                32
 01/31/2018   02:30:53   ( -69.04, -39.94) 01/31/2018   02:32:02  ( -68.93, -38.51)   58.38                69
 01/31/2018   03:21:25   (  68.28, 128.37) 01/31/2018   03:21:39  (  68.26, 128.31)    3.45                14
 01/31/2018   04:12:07   ( -68.19, -64.19) 01/31/2018   04:11:09  ( -68.16, -64.18)    3.23                58
 02/02/2018   18:47:36   ( -68.39,  76.69) 02/02/2018   18:48:40  ( -68.41,  76.72)    2.40                64
 02/02/2018   19:38:19   (  68.22,-115.78) 02/02/2018   19:38:08  (  68.23,-115.84)    2.83                11
 02/02/2018   20:28:55   ( -67.80,  52.06) 02/02/2018   20:27:43  ( -67.85,  51.35)   30.29                72
 02/05/2018   11:04:30   ( -68.33,-167.46) 02/05/2018   11:05:10  ( -68.32,-167.50)    1.64                40
 02/05/2018   11:55:14   (  68.21,  -0.01) 02/05/2018   11:54:37  (  68.20,  -0.00)    1.80                37
 02/08/2018   02:30:52   (  68.90, 140.23) 02/08/2018   02:32:02  (  68.77, 141.30)   45.57                70
 02/08/2018   03:21:24   ( -68.27, -51.62) 02/08/2018   03:21:39  ( -68.29, -51.66)    2.78                15
 02/08/2018   04:12:08   (  68.16, 115.83) 02/08/2018   04:11:06  (  68.16, 115.84)    0.87                62