Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 29.  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)
 12/30/2017   02:30:55   ( -68.89, -39.69) 12/30/2017   02:32:06  ( -68.79, -38.69)   41.80                71
 12/30/2017   03:21:30   (  68.29, 128.41) 12/30/2017   03:21:40  (  68.29, 128.34)    2.63                10
 12/30/2017   04:12:12   ( -68.21, -64.16) 12/30/2017   04:11:10  ( -68.19, -64.15)    2.27                62
 01/01/2018   18:47:40   ( -68.42,  76.70) 01/01/2018   18:48:42  ( -68.43,  76.74)    1.48                62
 01/01/2018   19:38:23   (  68.25,-115.77) 01/01/2018   19:38:10  (  68.26,-115.82)    2.11                13
 01/01/2018   20:28:58   ( -67.79,  52.13) 01/01/2018   20:27:46  ( -67.82,  51.30)   35.27                72
 01/04/2018   11:04:33   ( -68.38,-167.47) 01/04/2018   11:05:12  ( -68.39,-167.43)    1.81                39
 01/04/2018   11:55:16   (  68.21,   0.05) 01/04/2018   11:54:40  (  68.22,   0.01)    1.77                36
 01/07/2018   02:30:55   (  69.03, 140.12) 01/07/2018   02:32:04  (  68.89, 141.44)   54.55                69
 01/07/2018   03:21:26   ( -68.34, -51.64) 01/07/2018   03:21:42  ( -68.34, -51.61)    1.53                16
 01/07/2018   04:12:09   (  68.17, 115.88) 01/07/2018   04:11:10  (  68.17, 115.83)    1.87                59
 01/09/2018   18:47:36   (  68.39,-103.26) 01/09/2018   18:48:41  (  68.39,-103.30)    1.92                65
 01/09/2018   19:38:18   ( -68.29,  64.18) 01/09/2018   19:38:11  ( -68.29,  64.21)    1.30                 7
 01/09/2018   20:28:55   (  67.81,-127.90) 01/09/2018   20:27:43  (  67.89,-128.62)   31.36                72