Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 7 1.  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)
 07/02/2021   02:59:48   ( -80.42, -13.52) 07/02/2021   02:59:54  ( -80.43, -13.64)    2.54                 6
 07/04/2021   08:33:32   (  80.42,  83.04) 07/04/2021   08:33:03  (  80.43,  83.19)    2.98                29
 07/04/2021   09:22:59   ( -80.41,-109.34) 07/04/2021   09:24:03  ( -80.42,-109.50)    3.10                64
 07/06/2021   14:07:16   ( -80.44, 179.83) 07/06/2021   14:06:13  ( -80.44, 179.67)    3.02                63
 07/06/2021   14:56:42   (  80.44, -12.50) 07/06/2021   14:57:11  (  80.42, -12.57)    2.99                29
 07/08/2021   20:30:27   ( -80.43,  83.97) 07/08/2021   20:30:21  ( -80.42,  84.09)    2.41                 6
 07/11/2021   02:04:11   (  80.42,-179.57) 07/11/2021   02:03:29  (  80.44,-179.44)    3.37                42
 07/11/2021   02:53:38   ( -80.42, -11.90) 07/11/2021   02:54:30  ( -80.42, -11.85)    1.00                52
 07/13/2021   07:37:57   ( -80.38, -83.41) 07/13/2021   07:36:43  ( -80.50, -83.79)   14.78                74