Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NOAA-19
TLE Epoch: 2021 8 22.  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   18:20:54   ( -80.50, 117.12) 08/22/2021   18:21:04  ( -80.48, 117.03)    2.94                10
 08/24/2021   23:54:38   (  80.51,-146.27) 08/24/2021   23:54:09  (  80.49,-146.41)    2.90                29
 08/25/2021   00:44:06   ( -80.48,  21.06) 08/25/2021   00:45:11  ( -80.48,  21.15)    1.69                65
 08/27/2021   05:28:23   ( -80.51, -49.70) 08/27/2021   05:27:19  ( -80.50, -49.70)    1.15                64
 08/27/2021   06:17:49   (  80.51, 117.94) 08/27/2021   06:18:16  (  80.49, 117.84)    3.23                27
 08/29/2021   11:51:34   ( -80.51,-145.48) 08/29/2021   11:51:26  ( -80.50,-145.64)    3.11                 8
 08/31/2021   17:25:18   (  80.50, -48.98) 08/31/2021   17:24:32  (  80.51, -49.00)    0.44                46
 08/31/2021   18:14:46   ( -80.48, 118.40) 08/31/2021   18:15:33  ( -80.50, 118.40)    2.39                47