Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2018 12 19.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NOAA-19) NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/21/2018   22:22:38   ( -78.28,  41.17) 12/21/2018   22:21:40  ( -78.30,  41.26)    2.54                58
 12/21/2018   23:12:04   (  78.28,-151.21) 12/21/2018   23:12:45  (  78.25,-151.22)    3.05                41
 12/24/2018   03:56:22   (  78.30, 137.84) 12/24/2018   03:55:16  (  78.31, 137.87)    0.88                66
 12/24/2018   04:45:50   ( -78.27, -54.67) 12/24/2018   04:46:10  ( -78.28, -54.66)    0.54                20
 12/26/2018   10:19:34   (  78.30,  42.05) 12/26/2018   10:19:46  (  78.30,  41.88)    3.74                12
 12/28/2018   15:53:21   ( -78.29, 138.53) 12/28/2018   15:53:11  ( -78.31, 138.54)    2.47                10
 12/30/2018   21:27:06   (  78.30,-124.86) 12/30/2018   21:26:46  (  78.33,-124.87)    2.87                20
 12/30/2018   22:16:34   ( -78.28,  42.67) 12/30/2018   22:17:41  ( -78.29,  42.60)    2.46                67
 01/02/2019   03:00:53   ( -78.32, -28.23) 01/02/2019   03:00:11  ( -78.31, -28.07)    3.48                42