Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2018 4 6.  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)
 04/08/2018   20:00:11   ( -77.76,  74.16) 04/08/2018   19:59:05  ( -77.82,  70.87)   77.73                66
 04/08/2018   20:49:45   (  77.39,-119.75) 04/08/2018   20:50:01  (  77.40,-119.74)    1.92                16
 04/11/2018   01:33:55   (  77.67, 170.35) 04/11/2018   01:32:47  (  77.76, 167.85)   60.00                68
 04/11/2018   02:23:28   ( -77.41, -23.08) 04/11/2018   02:23:33  ( -77.41, -23.08)    0.41                 5
 04/13/2018   07:57:10   (  77.41,  73.47) 04/13/2018   07:57:17  (  77.44,  73.44)    3.02                 7
 04/15/2018   13:30:53   ( -77.44, 170.14) 04/15/2018   13:30:49  ( -77.43, 170.16)    0.82                 4
 04/17/2018   19:04:35   (  77.42, -93.34) 04/17/2018   19:04:32  (  77.45, -93.28)    2.98                 3
 04/17/2018   19:54:12   ( -76.98,  72.60) 04/17/2018   19:55:16  ( -76.97,  76.23)   91.07                64
 04/20/2018   00:38:18   ( -77.45,   3.33) 04/20/2018   00:38:05  ( -77.46,   3.34)    1.22                13