Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 8 21.  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)
 08/22/2021   18:20:55   ( -80.49, 116.97) 08/22/2021   18:21:05  ( -80.49, 116.87)    1.89                10
 08/24/2021   23:54:39   (  80.49,-146.44) 08/24/2021   23:54:10  (  80.50,-146.58)    2.80                29
 08/25/2021   00:44:06   ( -80.46,  20.90) 08/25/2021   00:45:11  ( -80.49,  20.99)    3.05                65
 08/27/2021   05:28:23   ( -80.49, -49.85) 08/27/2021   05:27:19  ( -80.51, -49.85)    1.32                64
 08/27/2021   06:17:49   (  80.49, 117.78) 08/27/2021   06:18:16  (  80.49, 117.68)    1.80                27
 08/29/2021   11:51:34   ( -80.49,-145.64) 08/29/2021   11:51:26  ( -80.50,-145.78)    2.85                 8
 08/31/2021   17:25:17   (  80.52, -48.84) 08/31/2021   17:24:31  (  80.50, -48.79)    2.39                46
 08/31/2021   18:14:45   ( -80.49, 118.55) 08/31/2021   18:15:32  ( -80.49, 118.61)    1.08                47