Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2017 12 18.  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)
 12/20/2017   10:38:53   ( -76.96,-148.33) 12/20/2017   10:38:16  ( -76.99,-148.35)    3.09                37
 12/20/2017   11:28:20   (  76.90,  19.10) 12/20/2017   11:29:18  (  76.91,  19.25)    3.76                58
 12/22/2017   16:12:36   (  77.00, -51.64) 12/22/2017   16:12:01  (  77.00, -51.76)    3.08                35
 12/22/2017   17:02:05   ( -76.92, 115.72) 12/22/2017   17:02:57  ( -76.92, 115.88)    3.84                52
 12/24/2017   21:46:21   ( -77.01,  44.98) 12/24/2017   21:45:40  ( -76.99,  44.96)    2.98                41
 12/24/2017   22:35:48   (  76.95,-147.61) 12/24/2017   22:36:42  (  76.96,-147.66)    1.47                54
 12/27/2017   03:20:05   (  76.99, 141.45) 12/27/2017   03:19:24  (  77.01, 141.49)    3.07                41
 12/27/2017   04:09:33   ( -76.96, -51.00) 12/27/2017   04:10:22  ( -76.96, -51.03)    0.79                49
 12/29/2017   08:53:50   ( -77.00,-121.94) 12/29/2017   08:53:04  ( -77.00,-121.79)    3.97                46
 12/29/2017   09:43:16   (  76.98,  45.62) 12/29/2017   09:44:05  (  76.98,  45.55)    1.85                49
 12/31/2017   14:27:33   (  77.01, -25.34) 12/31/2017   14:26:47  (  77.04, -25.34)    3.75                46