Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 28.  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   02:30:56   ( -68.94, -39.75) 12/30/2017   02:32:06  ( -68.81, -38.67)   45.65                70
 12/30/2017   03:21:31   (  68.34, 128.35) 12/30/2017   03:21:40  (  68.32, 128.37)    2.57                 9
 12/30/2017   04:12:12   ( -68.20, -64.15) 12/30/2017   04:11:10  ( -68.21, -64.13)    1.60                62
 01/01/2018   18:47:40   ( -68.41,  76.72) 01/01/2018   18:48:43  ( -68.41,  76.72)    0.17                63
 01/01/2018   19:38:24   (  68.30,-115.83) 01/01/2018   19:38:10  (  68.30,-115.77)    2.15                14
 01/01/2018   20:28:58   ( -67.78,  52.15) 01/01/2018   20:27:46  ( -67.86,  51.34)   35.03                72
 01/04/2018   11:04:33   ( -68.37,-167.46) 01/04/2018   11:05:14  ( -68.35,-167.49)    3.10                41
 01/04/2018   11:55:17   (  68.26,  -0.00) 01/04/2018   11:54:41  (  68.23,   0.02)    3.23                36
 01/07/2018   02:30:55   (  69.07, 140.06) 01/07/2018   02:32:04  (  68.94, 141.49)   58.65                69
 01/07/2018   03:21:25   ( -68.33, -51.63) 01/07/2018   03:21:43  ( -68.34, -51.62)    0.96                18
 01/07/2018   04:12:09   (  68.22, 115.82) 01/07/2018   04:11:10  (  68.22, 115.88)    2.64                59
 01/09/2018   18:47:37   (  68.44,-103.32) 01/09/2018   18:48:43  (  68.43,-103.27)    2.49                66
 01/09/2018   19:38:18   ( -68.28,  64.20) 01/09/2018   19:38:14  ( -68.27,  64.18)    1.56                 4
 01/09/2018   20:28:57   (  67.91,-128.02) 01/09/2018   20:27:45  (  67.93,-128.58)   23.60                72