Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 13.  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)
 12/13/2017   17:27:02   (  68.77, -83.56) 12/13/2017   17:28:13  (  68.64, -82.91)   30.00                71
 12/13/2017   18:17:33   ( -68.35,  84.33) 12/13/2017   18:17:46  ( -68.37,  84.39)    3.37                13
 12/13/2017   19:08:12   (  68.21,-108.16) 12/13/2017   19:07:14  (  68.19,-108.17)    1.72                58
 12/16/2017   13:51:08   ( -68.42, 150.86) 12/16/2017   13:51:58  ( -68.42, 150.90)    1.99                50
 12/16/2017   14:41:47   (  68.29, -41.65) 12/16/2017   14:41:25  (  68.30, -41.60)    2.78                22
 12/16/2017   15:32:14   ( -67.64, 126.49) 12/16/2017   15:31:04  ( -67.70, 125.33)   49.40                70
 12/19/2017   09:24:54   ( -69.02,-143.34) 12/19/2017   09:26:03  ( -68.92,-142.04)   53.21                69
 12/19/2017   10:15:23   (  68.36,  24.87) 12/19/2017   10:15:38  (  68.35,  24.91)    1.99                15
 12/19/2017   11:05:59   ( -68.20,-167.58) 12/19/2017   11:05:09  ( -68.20,-167.64)    2.40                50
 12/22/2017   05:48:58   (  68.38,  91.45) 12/22/2017   05:49:51  (  68.41,  91.42)    3.14                53
 12/22/2017   06:39:36   ( -68.32,-101.13) 12/22/2017   06:39:21  ( -68.31,-101.06)    2.78                15
 12/22/2017   07:30:06   (  67.71,  66.96) 12/22/2017   07:28:55  (  67.80,  65.98)   42.22                71
 12/25/2017   01:22:45   (  69.10, 157.10) 12/25/2017   01:23:54  (  68.97, 158.56)   60.13                69
 12/25/2017   02:13:11   ( -68.39, -34.61) 12/25/2017   02:13:33  ( -68.37, -34.55)    3.16                22
 12/25/2017   03:03:49   (  68.22, 132.93) 12/25/2017   03:03:00  (  68.25, 132.95)    2.60                49