Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2017 12 23.  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)
 12/24/2017   21:46:20   ( -76.99,  44.91) 12/24/2017   21:45:40  ( -76.99,  44.96)    1.34                40
 12/24/2017   22:35:47   (  76.94,-147.66) 12/24/2017   22:36:42  (  76.95,-147.65)    2.10                55
 12/27/2017   03:20:02   (  77.03, 141.60) 12/27/2017   03:19:24  (  77.01, 141.49)    3.24                38
 12/27/2017   04:09:31   ( -76.95, -51.05) 12/27/2017   04:10:22  ( -76.96, -51.03)    1.31                51
 12/29/2017   08:53:47   ( -76.99,-121.96) 12/29/2017   08:53:04  ( -76.99,-121.78)    4.31                43
 12/29/2017   09:43:13   (  76.98,  45.63) 12/29/2017   09:44:05  (  76.97,  45.56)    1.68                52
 12/31/2017   14:27:29   (  77.02, -25.30) 12/31/2017   14:26:47  (  77.04, -25.32)    2.28                42
 12/31/2017   15:16:57   ( -76.99, 142.24) 12/31/2017   15:17:46  ( -76.98, 142.20)    1.91                49
 01/02/2018   20:01:13   ( -77.03,  71.30) 01/02/2018   20:00:28  ( -77.02,  71.41)    3.06                45
 01/02/2018   20:50:39   (  77.01,-121.13) 01/02/2018   20:51:28  (  77.00,-121.28)    3.87                49
 01/05/2018   01:34:55   (  77.04, 167.92) 01/05/2018   01:34:09  (  77.03, 167.99)    1.93                46