Simultaneous Nadir Overpasses (SNOs) between NOAA-20 and TERRA
TLE Epoch: 2017 12 11.  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   17:27:00   (  68.86, -83.66) 12/13/2017   17:28:11  (  68.74, -82.78)   38.03                71
 12/13/2017   18:17:29   ( -68.33,  84.37) 12/13/2017   18:17:47  ( -68.30,  84.32)    3.40                18
 12/13/2017   19:08:08   (  68.20,-108.13) 12/13/2017   19:07:14  (  68.19,-108.17)    2.14                54
 12/16/2017   13:51:00   ( -68.43, 150.87) 12/16/2017   13:51:58  ( -68.41, 150.90)    2.12                58
 12/16/2017   14:41:39   (  68.31, -41.64) 12/16/2017   14:41:25  (  68.29, -41.60)    2.13                14
 12/16/2017   15:32:11   ( -67.93, 126.17) 12/16/2017   15:30:59  ( -67.97, 125.65)   22.34                72
 12/19/2017   09:24:49   ( -69.44,-143.87) 12/19/2017   09:25:55  ( -69.35,-141.47)   94.38                66
 12/19/2017   10:15:10   (  68.36,  24.92) 12/19/2017   10:15:38  (  68.34,  24.90)    2.01                28
 12/19/2017   11:05:47   ( -68.25,-167.59) 12/19/2017   11:05:08  ( -68.24,-167.58)    0.55                39
 12/22/2017   05:48:42   (  68.47,  91.41) 12/22/2017   05:49:50  (  68.45,  91.48)    3.33                68
 12/22/2017   06:39:18   ( -68.29,-101.02) 12/22/2017   06:39:21  ( -68.30,-101.07)    2.07                 3
 12/22/2017   07:29:57   (  68.18,  66.44) 12/22/2017   07:28:48  (  68.17,  66.43)    1.27                69
 12/25/2017   02:12:49   ( -68.40, -34.52) 12/25/2017   02:13:32  ( -68.41, -34.50)    1.72                43
 12/25/2017   03:03:28   (  68.29, 132.94) 12/25/2017   03:02:59  (  68.28, 133.00)    2.81                29
 12/25/2017   03:53:51   ( -67.41, -58.64) 12/25/2017   03:52:42  ( -67.46, -60.32)   71.93                69